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Sample records for textile dyeing industries

  1. Crossflow Ultrafiltration for Removing Direct-15 Dye from Wastewater of Textile Industry

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    A.L. Ahmad

    2017-11-01

    Full Text Available Ultrafiltration membrane was used to treat the effluent from textile industries. Crossflow ultrafiltration using GN polymeric membrane was used to remove the dye from textile effluent. A synthetic textile effluent of Direct-15 dye was used. The study focused through the effect of feed concentration, transmembrane pressure and solution’s pH on the permeate flux and percentage of dye removal were investigated. Dye concentration had significant effects on flux values. Under the fixed pressures and pH, the flux decreased while the dye rejection increased with increasing feed concentration. Transmembrane pressure also had significant effect on flux values. Under the fixed feed concentration and pH, the flux increased while dye rejection decreased with increasing pressure. Experiment data showed that the highest flux was observed at pH 4 (acidic condition while the highest dye removal observed at pH 7. Data collection could be used to improve the effectiveness of dye removal from textile industry wastewater using membrane technology.

  2. Color pollution control in textile dyeing industry effluents using tannery sludge

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    Sajjala Sreedhar Reddy

    2008-12-01

    Full Text Available Effective treatment of dyestuff containing textile dyeing industry effluents require advanced treatment technologies such as adsorption for the removal of dyestuffs. Powdered commercial coal based activated carbon has been the most widely used adsorbent for the removal of dyestuffs from dyeing industry effluents. As an alternative to commercial coal based activated carbon, activated carbon prepared from dried tannery sludge was used as an adsorbent for dyestuff removal from simulated textile dying industry effluent in this study. The color removal performance of tannery sludge derived activated carbon and commercial coal based activated carbon has been investigated using parameters such as adsorbent dosage, initial dye concentration, pH and temperature. It was found that tannery sludge derived activated carbon exhibits dye removal efficiency that is about 80–90 % of that observed with commercial coal based activated carbon. The amount of dye adsorbed on to tannery sludge derived activated carbon is lower compared with commercial activated carbon at equilibrium and dye adsorption capacity increased with increase of initial dye concentration and temperature, and deceasing pH. It was found that the Langmuir isotherm appears to fit the isotherm data better than the Freundlich isotherm. The leachate of heavy metals from tannery sludge derived activated carbon to the environment is very low, which are within the standard limit of industrial effluent and leachable substances.

  3. Application of membrane technologies for the treatment of textile wastewater and synthetic textile dyes

    International Nuclear Information System (INIS)

    Aouni, A.; Bes-Pia, A.; Fersi, C.; Dhahbi, M.; Cuartas-Uribe, B.; Alcaina-Miranda, M. I.

    2009-01-01

    Textile industry is characterized by using a great variety of chemicals and by large water consumption. In this way, textile effluents contains many types of dyes, detergents, solvents and salts depending on the particular textile mill processes (dyeing, printing, finishing...) and on the raw matter. For those reasons, textile industry is one of the main sources of industrial pollution, producing effluents discharges characterized by high conductivities and chemical oxygen demand (COD) values and strong colour. Process selection and operating conditions are important issues to optimize technically and economically the textile effluent treatment. This work presents the results of the laboratory-scale membrane experiments of textile industry effluents and synthetic textile dyes. Different types of Ultrafiltration (UF) and Nano filtration (NF) membranes were evaluated for permeate flux and their suitability in separating COD, colour, conductivity. Experiments demonstrated that membrane treatment is a very promising advanced treatment option for pollution control for textile industry effluents. The results of this work show that the direct ultrafiltration seems to be a realistic method in the pretreatment of the textile wastewater. In fact, NF process was successfully used to improve permeate quality of synthetic dyeing textile wastewater, but this process presented some limitations in the treatment of textile industry effluents because of membrane fouling problems. So, this process requires an efficient and appropriate technique such as ultrafiltration as a pre-treatment step for textile wastewater reuse. For direct nano filtration of synthetic textile dyes aqueous solutions, with a weak salt concentration (500 ppm), good results were obtained. More than 95 pour cent of color was removed from the treated water accompanied with a reduction of 92 pour cent of conductivity and COD. Based on the experiments; NF membranes are suitable for producing permeate of reusable

  4. DEGRADATION OF TEXTILE DYES BY WHITE ROT BASIDIOMYCETES

    OpenAIRE

    B.P. PARMAR, P.N. MERVANA B.R.M. VYAS*

    2014-01-01

    ABSTRACT: Dyes released by the textile industries pose a threat to environmental quality. Ligninolytic white-rot basidiomycetes can effectively degrade colored effluents and conventional dyes. White-rot fungi produce various isoforms of extracellular oxidases including laccase, Mn peroxidase and lignin peroxidase (LiP), which are involved in the degradation of lignin in their natural lignocellulosic substrates.  The textile industry, by far the most avid user of synthetic dyes, is in need...

  5. Different techniques recently used for the treatment of textile dyeing effluents: a review

    International Nuclear Information System (INIS)

    Altaf, A.; Noor, S.; Sharif, Q.M.; Najeebullah, M.

    2010-01-01

    Industrial textile processing comprises the operation of pretreatment dyeing printing and finishing. These production processes produce a substantial amount of chemical pollution. Textile finishing's wastewater, especially dye house effluent, contain different classes of organic dyes, chemicals and auxiliaries. They are colored and have extreme pH, COD and BOD values, and contain different salts, surfactants heavy metals and mineral oils. Therefore, dye bath effluents have to be treated before being discharge into the environment or municipal wastewater reservoir. This paper presents the review of different techniques currently used for the treatment of textile effluent, which are based on carbon adsorption, filtration, chemical precipitation, photo degradation, biodegradation and electrolytic chemical treatment. Membrane Technology has also been applied with the objective of recovering dyes and water. Biological processes could be adopted as a pretreatment decolorization step, combined with conventional treatment system (eg. coagulation flocculation, adsorption on activated carbon) to reduce the COD and BOD, an effective alternative for use by the textile dyeing industries. Electrochemical oxidation is an efficient process for the removal of colour and total organic carbon in reactive dyes textile wastewater. The ozonation is effective for decolorization of several dyes of different classes. Practical application of this process is feasible by treating industrial textile effluent after biological treatment. Processes using membranes technique, very interesting possibilities of separating hydrolyzed dyestuffs, dyeing auxiliaries and reuse treated wastewater in different finishing operation of textile industries. (author)

  6. Dye removal from textile wastewater using bioadsorbent

    International Nuclear Information System (INIS)

    Gardazi, S.M.H.

    2014-01-01

    Textile industries throughout the world produce huge quantities of dyes and pigments annually. Effluents from textile industries are dye wastewater, and disposal of these wastes to freshwater bodies causes damage to the environment. Among the treatment technologies, adsorption is an attractive and viable option, provided that the sorbent is inexpensive and readily available for use. In this study, a typical basic dye, methylene blue, in wastewater was treated using Melia azedarach sawdust. The effects of contact time, adsorbent amount and particle size were investigated on the removal efficiency of adsorbent for methylene blue. Complete removal of the dye were attained at higher adsorbent dose of 3 g/L with 50 mg/L initial dye concentration. The maximum adsorption was at 240 minutes, whereas more than 90% removal with 105 meu m particle size of 1 g/L adsorbent for same initial dye concentration. The experimental data best fits with 2 Langmuir adsorption isotherm (R= 0.991). (author)

  7. REMOVAL OF REACTIVE DYES FROM WASTEWATER OF TEXTILE INDUSTRIES BY USING ENVIRONMENTAL FRIENDLY ADSORBENTS

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    ALAM Md Shamim

    2016-05-01

    Full Text Available This paper is aimed at developing a method to treat wastewater by using inexpensive adsorbents. Textile industries produce wastewater, otherwise known as effluent, as a bi-product of their production. The effluent contains several pollutants. Among the various stages of textile production, the operations in the dyeing plant, which include pre-treatments, dyeing, printing and finishing, produce the most pollution. The textile dyeing wastes contain unused or partially used organic compounds, and high level of different pollutants. They are often of strong color and may also be of high temperature. When disposed into water bodies or onto land these effluents will result in the deterioration of ecology and damage to aquatic life. Furthermore they may cause damage to fisheries and economic loss to fishermen and farmer, there may be impacts on human health which can be removed with the help of an effluent treatment plant (ETP. The “clean” water can then be safely discharged into the environment and ultimately save our environment from pollution. In this study, rice husk and cotton dust were used as an adsorbent. In this research work waste water was characterized with this useless adsorbents. The parameters which were tested in this study are DO, BOD, COD, TS, TDS and TSS. The results showed that the selected bio adsorbents have good potential for removal of reactive dyes from textile effluent.

  8. Study of radon, thoron and toxic elements in some textile dyes

    International Nuclear Information System (INIS)

    Abel-Ghany, H.A.

    2013-01-01

    Elemental analysis of textile dyes may provide valuable information concerning the content and concentrations of element, especially the toxic ones. Such information monitors the safety of handling and using these dyes in textile industry. In addition to the safety of wearing of clothes stained with these dyes. In the present work, the specific activity of both radon and thoron were measured in nine textile dyes by using alpha emitters registration which are emitted from radon and thoron gases in CR-39 nuclear track detectors. Unexpectedly, the results obtained reports a high concentration of both radon and thoron gases in some samples (samples D5 and D9). Also the concentration of toxic elements (Cu, Pb, Zn, Mn, Cd and Cr) in textile dyes were determined by flame and graphite furnace atomic absorption spectrometry. (author)

  9. Factor Affecting Textile Dye Removal Using Adsorbent From Activated Carbon: A Review

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    Mohammad Razi Mohd Adib

    2017-01-01

    Full Text Available Industrial company such as textile, leather, cosmetics, paper and plastic generated wastewater containing large amount of dye colour. The removal of dye materials are importance as the presence of this kind of pollutant influence the quality of water and makes it aesthetically unpleasant. As their chemical structures are complicated, it is difficult to treat dyes with municipal waste treatment operations. Even a small quantity of dye does cause high visibility and undesirability. There have been various treatment technique reviewed for the removal of dye in wastewater. However, these treatment process has made it to another expensive treatment method. This review focus on the application of adsorbent in dye removal from textile wastewater as the most economical and effective method, adsorption has become the most preferred method to remove dye. The review provides literature information about different basis materials used to produce activated carbon like agricultural waste and industrial waste as well as the operational parameters factors in term of contact time, adsorbent dosage, pH solution and initial dye concentration that will affect the process in removing textile dye. This review approach the low cost and environmental friendly adsorbent for replacing conventional activated carbon.

  10. Determination of the phthalocyanine textile dye, reactive turquoise blue, by electrochemical techniques

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    Osugi Marly E.

    2003-01-01

    Full Text Available Turquoise blue 15 (AT15 is a reactive dye widely used in the textile industry to color natural fibers. The presence of these dyes in effluent and industrial wastewater is of considerable interest due ecotoxicological and environmental problems. The electrochemical reduction of this dye has been investigated in aqueous solution using cyclic voltammetry, controlled potential electrolysis and cathodic stripping voltammetry. Optimum conditions for dye discoloration by controlled potential electrolysis use an alkaline medium. Using cathodic stripping voltammetry a linear calibration graph was obtained from 5.00x10-8 mol L-1 to 1.00x10-6 mol L-1 of AT15 at pH 4.0, using accumulation times of 180 and 240 s and an accumulation potential of 0.0 V. The proposed method was applied in direct determination of the dye in tap water and in textile industry effluent.

  11. Bioremediation of coractive blue dye by using Pseudomonas spp. isolated from the textile dye wastewater

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    Sunar, N. M.; Mon, Z. K.; Rahim, N. A.; Leman, A. M.; Airish, N. A. M.; Khalid, A.; Ali, R.; Zaidi, E.; Azhar, A. T. S.

    2018-04-01

    Wastewater released from the textile industry contains variety substances, mainly dyes that contains a high concentration of color and organic. In this study the potential for bacterial decolorization of coractive blue dye was examined that isolated from textile wastewater. The optimum conditions were determined for pH, temperature and initial concentration of the dye. The bacteria isolated was Pseudomonas spp. The selected bacterium shows high decolorization in static condition at an optimum of pH 7.0. The Pseudomonas spp. could decolorize coractive blue dye by 70% within 24 h under static condition, with the optimum of pH 7.0. Decolorization was confirmed by using UV-VIS spectrophotometer. This present study suggests the potential of Pseudomonas spp. as an approach in sustainable bioremediation that provide an efficient method for decolorizing coractive blue dye.

  12. Isolation and screening of azo dye decolorizing bacterial isolates from dye-contaminated textile wastewater

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    Shahid Mahmood

    2011-04-01

    Full Text Available Azo dyes are released into wastewater streams without any pretreatment and pollute water and soilenvironments. To prevent contamination of our vulnerable resources, removal of these dye pollutants is of greatimportance. For this purpose, wastewater samples were collected from dye-contaminated sites of Faisalabad. About200 bacterial isolates were isolated through enrichment and then tested for their potential to remove RemazolBlack-B azo dye in liquid medium. Five bacterial isolates capable of degrading Remazol Black-B azo dye efficientlywere screened through experimentation on modified mineral salt medium. Isolate SS1 (collected from wastewater ofSupreme Textile Industry was able to completely remove the Remazol Black-B dye from the liquid medium in 18 h.Further, the isolate showed the best performance at the dye concentration of 100 mg L-1 medium (pH 7 and attemperature 35oC. Similarly, yeast extract proved to be the best carbon source for decolorization purpose. Theresults imply that the isolate SS1 could be used for the removal of the reactive dyes from textile effluents.

  13. Decolorization of a textile vat dye by adsorption on waste ash

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    MIODRAG ŠMELCEROVIĆ

    2010-06-01

    Full Text Available An adsorption process using cheap adsorbents could be described as a simple, selective and low cost alternative for the treatment of colored waste water compared to conventional physical and chemical processes. In this study the use of a natural waste adsorbent–ash was investigated for the removal of a textile vat dye Ostanthren blue GCD remaining after the dyeing of cotton textile. The ash obtained as a waste material during the burning of brown coal in the heating station of Leskovac (Serbia was used for the treatment of waste waters from the textile industry, i.e., waste water after the dyeing process. The effect of ash quantity, initial dye concentration, pH and agitation time on adsorption was studied. The Langmuir model was used to describe the adsorption isotherm. Based on the analytical expression of the Langmuir model, the adsorption constants, such as adsorption capacity and adsorption energy, were found. Pseudo first and second order kinetic models were studied to evaluate the kinetic data.

  14. Energy analysis for the textile and clothing industry branch; Brancheenergianalyse for textil- og beklaedningsindustrien

    Energy Technology Data Exchange (ETDEWEB)

    Hansen, J.; Hart, M.; Moeller, J. [DTI, Beklaedning og Tekstil, Herning (Denmark)

    1995-09-01

    Energy analysis and energy saving measures are proposed for the textile branch. Spinning, weaving, knitting and dye mills are analyzed as well as carpet production industry and clothing industry. Mechanical equipment, drying equipment, processing lines are investigated with regard to the possible energy savings. (EG) 19 refs.

  15. DECOLORIZATION OF TEXTILE DYES BY NEWLY ISOLATED TRAMETES VERSICOLOR STRAIN Sevil PİLATİN, Buket KUNDUHOĞLU

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    Buket KUNDUHOĞLU

    2011-08-01

    Full Text Available In this century, the amount of industrial produces and their consumption has increased tremendously. Along with this increase, accumulation of industrial waste and its effect on nature has causedserious problems. Because of including various chemicals and especially dye, textile waste water is one of the most hazardous industrial wastes. Color is the most important pollutant in waste water and it should be decolorized. Decolorization is more important than degradation of organic substances from waste water. Even a small amount of dye found changes the color of rivers, lakes and other waterresources, and reduces the penetration of light and solubility of gases. White rot fungus are used as a biological system in degradation and decolorizing of textile dyes.In this study, parameters for decolorization of several textile dyes (Blue 49, Orange 12, Orange 13, Red 31, Black 5, RBBR by newly isolated Trametes versicolor M96was studied.It has been determined that pH, amount of inoculum, shaking speed (rpm, dye concentration and temperature are important factors in decolorization of the studied dyes. The maximum decolorization was found pH 4.5, amount of inoculums 50 ml, shaking speed 200 rpm, dye concentration 50 mg/l and heat 30 °C.

  16. STATISTICAL INVESTIGATION OF ADSORPTION OF TWO REACTIVE TEXTILE DYES BY VARIOUS ADSORBENTS

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    Ümmühan DANIŞ

    2002-03-01

    Full Text Available Textile industry, in which uses the dyestuffs containing coloured and complex chemical compounds, is both water consumer and water pollutant. The removal of these compounds from the wastewaters is one of the most important problems in the textile industry. In this study, the adsorption of two reactive dyes (Red Px and Yellow P onto Aşkale and Balkaya lignites, Bensan clay and powdered active carbon (PAC from aqueous solution was statistically investigated. The adsorption time, dye concentration, solid/liquid ratio and mixing rate were chosen as parameters. The effects of these parameters on the amount of dye adsorbed by the adsorbents were determined. The results obtained have been statistically evaluated by using the stepwise method and SPSS Sortware version (9.1. The experimental observations and statistical evaluations shown that the effective parameters on the adsorption are equilibrium dye concentration and solid/liquid ratio. It was found that the adsorptive behaviours of both lignites and clay are similar to each other, but powdered active carbon displays different adsorptive behaviour. Finally, the empirical equations showing the relation between amount of dye adsorbed and the effective parameters were developed.

  17. Role of ZnO Bulk and Nanopowders in Photocatalytic Decolorisation of Textile Industrial Dyes

    International Nuclear Information System (INIS)

    Kale, S.N.; Kitture, Rohini; Koppikar, Soumya J.; Kaul-Ghanekar, Ruchika; Patil, S.I.

    2009-09-01

    We report on comparison of zinc oxide nanoparticles with bulk powders as candidates for decolorisation of organic dyes in the textile industry. X-ray diffraction showed pure phase catalysts; while ultraviolet-visible (UV-vis) spectroscopy showed larger absorbance in a wide visible range of spectrum for bulk, compared to nanopowders. Two dyes, Methylene Blue (MB) and Methyl Orange (MO) were treated with these catalysts in solar light. UV-vis studies showed ZnO bulk to completely decolorise both the dyes in 4 2- , NO 2 and NO 3 - . Cell line studies performed on these treated samples showed the cell viability of ∼ 100% on SiHa and B16F10 cell lines as well as on mouse primary fibroblasts, giving evidence of non-toxicity of the catalyst, as well as the byproducts upon treatment, with bulk nanopowders to be better than their nano-counterparts. Defects-driven wider absorption of the bulk samples in the visible optical regime is envisaged to be the probable reason for better decolorisation efficiency of ZnO bulk samples. (author)

  18. Degradation of textile dyes by cyanobacteria.

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    Dellamatrice, Priscila Maria; Silva-Stenico, Maria Estela; Moraes, Luiz Alberto Beraldo de; Fiore, Marli Fátima; Monteiro, Regina Teresa Rosim

    Dyes are recalcitrant compounds that resist conventional biological treatments. The degradation of three textile dyes (Indigo, RBBR and Sulphur Black), and the dye-containing liquid effluent and solid waste from the Municipal Treatment Station, Americana, São Paulo, Brazil, by the cyanobacteria Anabaena flos-aquae UTCC64, Phormidium autumnale UTEX1580 and Synechococcus sp. PCC7942 was evaluated. The dye degradation efficiency of the cyanobacteria was compared with anaerobic and anaerobic-aerobic systems in terms of discolouration and toxicity evaluations. The discoloration was evaluated by absorption spectroscopy. Toxicity was measured using the organisms Hydra attenuata, the alga Selenastrum capricornutum and lettuce seeds. The three cyanobacteria showed the potential to remediate textile effluent by removing the colour and reducing the toxicity. However, the growth of cyanobacteria on sludge was slow and discoloration was not efficient. The cyanobacteria P. autumnale UTEX1580 was the only strain that completely degraded the indigo dye. An evaluation of the mutagenicity potential was performed by use of the micronucleus assay using Allium sp. No mutagenicity was observed after the treatment. Two metabolites were produced during the degradation, anthranilic acid and isatin, but toxicity did not increase after the treatment. The cyanobacteria showed the ability to degrade the dyes present in a textile effluent; therefore, they can be used in a tertiary treatment of effluents with recalcitrant compounds. Copyright © 2016 Sociedade Brasileira de Microbiologia. Published by Elsevier Editora Ltda. All rights reserved.

  19. Identification Of Natural Dyes On Archaeological Textile Objects Using Laser Induced Fluorescent Technique

    International Nuclear Information System (INIS)

    Abdel-Kareem, O.; Eltokhy, A.; Harith, M. A.

    2011-01-01

    This study aims to evaluate the use of Laser Fluorescent as a non-destructive technique for identification of natural dyes on archaeological textile objects. In this study wool textile samples were dyed with 10 natural dyes such as cochineal, cutch, henna, indigo, Lac, madder, safflower, saffron, sumac and turmeric. These dyes common present on archaeological textile objects to be used as standard dyed textile samples. These selected natural dyes will be used as known references that can be used a guide to identify unknown archaeological dyes. The dyed textile samples were investigated with laser radiation in different wavelengths to detect the best wavelengths for identification each dye. This study confirms that Laser Florescent is very useful and a rapid technique can be used as a non-destructive technique for identification of natural dyes on archaeological textile objects. The results obtained with this study can be a guide for all conservators in identification of natural organic dyes on archaeological textile objects.

  20. Identification Of Natural Dyes On Archaeological Textile Objects Using Laser Induced Fluorescent Technique

    Science.gov (United States)

    Abdel-Kareem, O.; Eltokhy, A.; Harith, M. A.

    2011-09-01

    This study aims to evaluate the use of Laser Fluorescent as a non-destructive technique for identification of natural dyes on archaeological textile objects. In this study wool textile samples were dyed with 10 natural dyes such as cochineal, cutch, henna, indigo, Lac, madder, safflower, saffron, sumac and turmeric. These dyes common present on archaeological textile objects to be used as standard dyed textile samples. These selected natural dyes will be used as known references that can be used a guide to identify unknown archaeological dyes. The dyed textile samples were investigated with laser radiation in different wavelengths to detect the best wavelengths for identification each dye. This study confirms that Laser Florescent is very useful and a rapid technique can be used as a non-destructive technique for identification of natural dyes on archaeological textile objects. The results obtained with this study can be a guide for all conservators in identification of natural organic dyes on archaeological textile objects.

  1. Removal of dyes from textile wastewater by using nanofiltration polyetherimide membrane

    Science.gov (United States)

    Karisma, Doni; Febrianto, Gabriel; Mangindaan, Dave

    2017-12-01

    Followed by rapid development of the textile industries since 19th century the dyeing technology is thriving ever since. However, its progress is followed by lack of responsibility and knowledge in treating the dye-containing wastewater. There are some emerging technologies in treating such kind of wastewater, where membrane technology is one of those technologies that has uniqueness in the performance of separating dyes from wastewater, accompanied with small amount of energy. The development of membrane technology is one of several eco-engineering developments for sustainability in water resource management. However, there are a lot of rooms for improvement for this membrane technology, especially for the application in treating textile wastewater in Indonesia. Based on the demand in Indonesia for clean water and further treatment of dye-containing wastewater, the purpose of this research is to fabricate nanofiltration (NF) membranes to accommodate those problems. Furthermore, the fabricated NF membrane will be modified by interfacial polymerization to impart a new selective layer on top of NF membrane to improve the performance of the separation of the dyes from dye-containing wastewater. This research was conducted into two phases of experiments. In the first phase the formulation of polymeric dope solution of PEI/Acetone/NMP (N-methyl-pyrollidone), using the variation of 15/65/20, 16/64/20, and 17/63/20. This research show that many areas still can be explored in textile wastewater treatment using membrane in Indonesia.

  2. Process and equipment development for textile dyeing in supercritical carbon dioxide

    NARCIS (Netherlands)

    Van der Kraan, M.

    2005-01-01

    The large-scale water pollution by the textile dyeing industry is a global environmental problem. The ever more stringent regulations on wastewater also make it an economical problem. In the last two decades therefore, research has been done on an environmentally benign technology, using

  3. A kinetic study of textile dyeing wastewater degradation by Penicillium chrysogenum.

    Science.gov (United States)

    Durruty, Ignacio; Fasce, Diana; González, Jorge Froilán; Wolski, Erika Alejandra

    2015-06-01

    The potential of Penicillium chrysogenum to decolorize azo dyes and a real industrial textile wastewater was studied. P. chrysogenum was able to decolorize and degrade three azo dyes (200 mg L(-1)), either independently or in a mixture of them, using glucose as a carbon source. A kinetic model for degradation was developed and it allowed predicting the degradation kinetics of the mixture of the three azo dyes. In addition, P. chrysogenum was able to decolorize real industrial wastewater. The kinetic model proposed was also able to predict the decolorization of the real wastewater. The calibration of the proposed model makes it a useful tool for future wastewater facilities' design and for practical applications.

  4. Application of dye analysis in forensic fibre and textile examination: Case examples.

    Science.gov (United States)

    Schotman, Tom G; Xu, Xiaoma; Rodewijk, Nicole; van der Weerd, Jaap

    2017-09-01

    Seven cases and a quality assurance test are presented. In these cases, fibres or textiles submitted for investigation were analysed by HPLC-DAD-MS to identify the dyes present. The cases presented illustrate that it is possible to identify textile dyes in fibre traces recovered for forensic analysis. The results show that a mixture of dyes is present in all textiles investigated, except one sample that was taken from a manufacturer dye shade card. It is concluded that dye analyses improves the evidential value of forensic fibre examinations, as it becomes possible to distinguish textiles that are different in dye chemistry, but have a similar colour. In addition dye analysis makes the examination more robust, as it becomes possible to attribute colour differences between samples to identical dyes (mixed in different ratios) or to chemically different dyes. Copyright © 2017 Elsevier B.V. All rights reserved.

  5. Efficiency Improvement of Some Agricultural Residue Modified Materials for Textile Dyes Absorption

    Science.gov (United States)

    Boonsong, P.; Paksamut, J.

    2018-03-01

    In this work, the adsorption efficiency was investigated of some agricultural residue modified materials as natural bio-adsorbents which were rice straw (Oryza sativa L.) and pineapple leaves (Ananas comosus (L.) Merr.) for the removal of textile dyes. Reactive dyes were used in this research. The improvement procedure of agricultural residue materials properties were alkali-acid modification with sodium hydroxide solution and hydrochloric acid solution. Adsorption performance has been investigated using batch experiments. Investigated adsorption factors consisted of adsorbent dose, contact time, adsorbent materials and pH of solution. The results were found that rice straw had higher adsorption capacity than pineapple leaves. The increasing of adsorption capacity depends on adsorbent dose and contact time. Moreover, the optimum pH for dye adsorption was acidic range because lowering pH increased the positively charges on the adsorbent surface which could be attacked by negatively charge of acid dyes. The agricultural residue modified materials had significant dye removal efficiency which these adsorbents could be used for the treatment of textile effluent in industries.

  6. Pretreatment of textile dyeing wastewater using an anoxic baffled reactor.

    Science.gov (United States)

    Kong, Huoliang; Wu, Huifang

    2008-11-01

    A study on pretreatment of textile dyeing wastewater was carried out using an anoxic baffled reactor (ABR) at wastewater temperatures of 5-31.1 degrees C. When hydraulic retention time (HRT) was 8h, the color of outflow of ABR was only 40 times at 5 degrees C and it could satisfy the professional discharge standard (grade-1) of textile and dyeing industry of China (GB4287-92). The total COD removal efficiency of ABR was 34.6%, 47.5%, 50.0%, 53.3%, 54.7% and 58.1% at 5, 9.7, 14.9, 19.7, 23.5 and 31.1 degrees C, respectively. Besides, after the wastewater being pre-treated by ABR when HRT was 6h and 8h, the BOD5/COD value rose from 0.30 of inflow to 0.46 of outflow and from 0.30 of inflow to 0.40 of outflow, respectively. Experimental results indicated that ABR was a very feasible process to decolorize and pre-treat the textile dyeing wastewater at ambient temperature. Moreover, a kinetic simulation of organic matter degradation in ABR at six different wastewater temperatures was carried through. The kinetic analysis showed the organic matter degradation was a first-order reaction. The reaction activation energy was 19.593 kJ mol(-1) and the temperature coefficient at 5-31.1 degrees C was 1.028.

  7. Resonance Raman and UV-visible spectroscopy of black dyes on textiles.

    Science.gov (United States)

    Abbott, Laurence C; Batchelor, Stephen N; Smith, John R Lindsay; Moore, John N

    2010-10-10

    Resonance Raman and UV-visible diffuse reflectance spectra were recorded from samples of cotton, viscose, polyester, nylon, and acrylic textile swatches dyed black with one of seven single dyes, a mixture of two dyes, or one of seven mixtures of three dyes. The samples generally gave characteristic Raman spectra of the dyes, demonstrating that the technique is applicable for the forensic analysis of dyed black textiles. Survey studies of the widely used dye Reactive Black 5 show that essentially the same Raman spectrum is obtained on bulk sampling from the dye in solution, on viscose, on cotton at different uptakes, and on microscope sampling from the dye in cotton threads and single fibres. The effects of laser irradiation on the Raman bands and emission backgrounds from textile samples with and without dye are also reported. Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

  8. Biological treatment of model dyes and textile wastewaters.

    Science.gov (United States)

    Paz, Alicia; Carballo, Julia; Pérez, María José; Domínguez, José Manuel

    2017-08-01

    Previous works conducted in our laboratory, reveled that Bacillus aryabhattai DC100 produce ligninolytic enzymes such as laccases and/or peroxidases, opening new applications in different bioprocesses, including the treatment of disposal residues such as dyestuffs from textile processing industries. This work described the degradation of three commercial model dyes Coomassie Brilliant Blue G-250 (CBB), Indigo Carmine (IC) and Remazol Brilliant Blue R (RBBR) under different culture media and operational conditions. The process was optimized using a Central Composite Rotatable Design, and the desirability predicted complete decolorization of 150 mg/L CBB at 37 °C, 304.09 rpm and salt concentration of 19.204 g/L. The model was validated with concentrations up to 180 mg/L CBB and IC, not being able to remove high amount of RBBR. The procedure here developed also allowed Chemical Oxygen Demands (COD) reductions in CBB of about 42%, meanwhile tests on real effluents from a local textile industry involved COD reductions of 50% in a liquid wastewater and 14% in semi-liquid sludge. Thus, allow the authorized discharge of wastewater into the corresponding treatment plant. Decolorization efficiencies and COD reductions open on the potential application of B. aryabhattai DC100 on the bioremediation of real effluents from textile industries. Copyright © 2017 Elsevier Ltd. All rights reserved.

  9. For the Fenton process in a sequential downflow and upflow system to treat textile dyeing wastewater

    Energy Technology Data Exchange (ETDEWEB)

    Bae, W.K.; Ko, G.B.; Cho, S.J. [Dept. of Civil and Environmental Engineering, Hanyang Univ., Kyounggi (Korea); Lee, S.H. [Dept. of Environmental Engineering, Sangmyung Univ., Cheonan (Korea)

    2003-07-01

    Wastewater from textile dyeing industry is characterized by high temperature, pH, pollution loading such as color and COD which are containing refractory, toxic and high molecular weight compounds. It is therefore, presumed to be very resistant to microbial degradation. Textile dyeing wastewater is therefore, presumed to be very resistant to microbial degradation. Combined processes are usually applied, which are chemical oxidation and biological process for textile dyeing wastewater in order to satisfy water quality standards. Fenton process as advanced oxidation process is well known as effective process for the removal of color and recalcitrant organics. However, the exactly predominant reaction mechanisms during Fenton process are not well explained among coagulation, oxidation and sedimentation so far. This research attempts to evaluate the predominant reaction with comparable results of ferric coagulation and oxidation for the Fenton process. (orig.)

  10. Analysis of in vivo penetration of textile dyes causing allergic reactions

    International Nuclear Information System (INIS)

    Lademann, J; Patzelt, A; Worm, M; Richter, H; Sterry, W; Meinke, M

    2009-01-01

    Contact allergies to textile dyes are common and can cause severe eczema. In the present study, we investigated the penetration of a fluorescent textile dye, dissolved from a black pullover, into the skin of one volunteer during perspiration and nonperspiration. Previously, wearing this pullover had induced a severe contact dermatitis in an 82-year old woman, who was not aware of her sensitization to textile dyes. The investigations were carried out by in vivo laser scanning microscopy. It could be demonstrated that the dye was eluted from the textile material by sweat. Afterwards, the dye penetrated into the stratum corneum and into the hair follicles. Inside the hair follicles, the fluorescent signal was still detectable after 24 h, whereas it was not verifiable anymore in the stratum corneum, Laser scanning microscopy represents an efficient tool for in vivo investigation of the penetration and storage of topically applied substances and allergens into the human skin and reveals useful hints for the development and optimization of protection strategies

  11. Thermogravimetric analysis of co-combustion between microalgae and textile dyeing sludge.

    Science.gov (United States)

    Peng, Xiaowei; Ma, Xiaoqian; Xu, Zhibin

    2015-03-01

    The synergistic interaction and kinetics of microalgae, textile dyeing sludge and their blends were investigated under combustion condition by thermogravimetric analysis. The textile dyeing sludge was blended with microalgae in the range of 10-90wt.% to investigate their co-combustion behavior. Results showed that the synergistic interaction between microalgae and textile dyeing sludge improved the char catalytic effect and alkali metals melt-induced effect on the decomposition of textile dyeing sludge residue at high temperature of 530-800°C. As the heating rate increasing, the entire combustion process was delayed but the combustion intensity was enhanced. The lowest average activation energy was obtained when the percentage of microalgae was 60%, which was 227.1kJ/mol by OFW and 227.4kJ/mol by KAS, respectively. Copyright © 2015 Elsevier Ltd. All rights reserved.

  12. Solid waste from leather industry as adsorbent of organic dyes in aqueous-medium

    International Nuclear Information System (INIS)

    Oliveira, Luiz C.A.; Goncalves, Maraisa; Oliveira, Diana Q.L.; Guerreiro, Mario C.; Guilherme, Luiz R.G.; Dallago, Rogerio M.

    2007-01-01

    The industrial tanning of leather usually produces considerable amounts of chromium-containing solid waste and liquid effluents and raises many concerns on its environmental effect as well as on escalating landfill costs. Actually, these shortcomings are becoming increasingly a limiting factor to this industrial activity that claims for alternative methods of residue disposals. In this work, it is proposed a novel alternative destination of the solid waste, based on the removal of organic contaminants from the out coming aqueous-residue. The adsorption isotherm pattern for the wet blue leather from the Aurea tanning industry in Erechim-RS (Brazil) showed that these materials present high activity on adsorbing the reactive red textile dye as well as other compounds. The adsorbent materials were characterized by IR spectroscopy and SEM and tested for the dye adsorption (reactive textile and methylene blue dyes). The concentrations of dyes were measured by UV-vis spectrophotometry and the chromium extraction from leather waste was realized by basic hydrolysis and determined by atomic absorption. As a low cost abundant adsorbent material with high adsorption ability on removing dye methylene blue (80 mg g -1 ) and textile dye reactive red (163 mg g -1 ), the leather waste is revealed to be a interesting alternative relatively to more costly adsorbent materials

  13. Solid waste from leather industry as adsorbent of organic dyes in aqueous-medium

    Energy Technology Data Exchange (ETDEWEB)

    Oliveira, Luiz C.A. [Universidade Federal de Lavras, Depto. de Quimica, Caixa Postal 37, CEP 37200.000, Lavras-MG (Brazil)]. E-mail: luizoliveira@ufla.br; Goncalves, Maraisa [Universidade Federal de Lavras, Depto. de Quimica, Caixa Postal 37, CEP 37200.000, Lavras-MG (Brazil); Oliveira, Diana Q.L. [Universidade Federal de Lavras, Depto. de Quimica, Caixa Postal 37, CEP 37200.000, Lavras-MG (Brazil); Guerreiro, Mario C. [Universidade Federal de Lavras, Depto. de Quimica, Caixa Postal 37, CEP 37200.000, Lavras-MG (Brazil); Guilherme, Luiz R.G. [Universidade Federal de Lavras, Depto. de Ciencia do solo, CEP 37200.000, Lavras-MG (Brazil); Dallago, Rogerio M. [URI-Campus Erechim, Av. 7 Setembro 1621, Centro, CEP 99700-000, Depto de Quimica, Erechim-RS (Brazil)

    2007-03-06

    The industrial tanning of leather usually produces considerable amounts of chromium-containing solid waste and liquid effluents and raises many concerns on its environmental effect as well as on escalating landfill costs. Actually, these shortcomings are becoming increasingly a limiting factor to this industrial activity that claims for alternative methods of residue disposals. In this work, it is proposed a novel alternative destination of the solid waste, based on the removal of organic contaminants from the out coming aqueous-residue. The adsorption isotherm pattern for the wet blue leather from the Aurea tanning industry in Erechim-RS (Brazil) showed that these materials present high activity on adsorbing the reactive red textile dye as well as other compounds. The adsorbent materials were characterized by IR spectroscopy and SEM and tested for the dye adsorption (reactive textile and methylene blue dyes). The concentrations of dyes were measured by UV-vis spectrophotometry and the chromium extraction from leather waste was realized by basic hydrolysis and determined by atomic absorption. As a low cost abundant adsorbent material with high adsorption ability on removing dye methylene blue (80 mg g{sup -1}) and textile dye reactive red (163 mg g{sup -1}), the leather waste is revealed to be a interesting alternative relatively to more costly adsorbent materials.

  14. Gamma rays induced decoloration and degradation of astrazon type cationic textile dyes

    International Nuclear Information System (INIS)

    Kantoglu, O.

    2012-01-01

    Full text: In many parts of the world, rapid development of agriculture and industry, together with the growth of large population centers, have led to the problems in the areas of management and purification of industrial and municipal wastes. In recent years, both the public and government all over the world are encouraging the implementation of new technologies in this respect. Textile industry, which is one of most pollutant contributer to the environment produces high volume of effluent containing several organic based chemicals which are generally harmful, toxic and non-biodegradable. Synthetic dyes are a major part of our life. Products ranging from clothes to leather accessories to furniture all depend on extensive use of organic dyes. Textile wastewater generally contains various pollutants, which can cause problems during treatment. Radiation technology is applied to enhance the biodegradability of textile wastewater. In this study, biodegradability and decolororation of cationic textile dyes of Astrazon Black FDL, Red FBL and Blue FGRL have been examined. The biodegradability (BOD/COD) increased at a 2, 1, 2 kGy for Astrazon FBL, Astrazon FGRL, Astrazon FDL in all irradiation environments, respectively. The biorefractory organic compounds were converted into more easily biodegradable compounds having lower molecular weights. In optimum dose and pH determination assays, 5 kGy pH 9 at air, 5 kGy pH 11 at supersaturated with oxygen, 7 kGy pH 11 at 2.6 mM hydrogen peroxide for Astrazon Red FBL, 3 kGy pH 8 at air, 7 kGy pH 5 at supersaturated with oxygen, 7 kGy pH 5 at 2.6 mM hydrogen peroxide for Astrazon Blue FGRL, 5 kGy pH 12 at air, 7 kGy pH 3 at supersaturated with oxygen, 9 kGy pH 3 at 2.6 mM hydrogen peroxide for Astrazon Black FDL were found as the optimum irradiation conditions. (author)

  15. Oxidative treatment characteristics of biotreated textile-dyeing wastewater and chemical agents used in a textile-dyeing process by advanced oxidation process.

    Science.gov (United States)

    Lim, B R; Hu, H Y; Ahn, K H; Fujie, K

    2004-01-01

    The oxidative treatment characteristics of biotreated textile-dyeing wastewater and typical chemicals such as desizing, scouring, dispersing and swelling agents used in the textile-dyeing process by advanced oxidation process were experimentally studied. The refractory organic matters remained in the effluent of biological treatment process without degradation may be suitable for the improvement of biodegradability and mineralized to CO2 by combined ozonation with and without hydrogen peroxide. On the other hand, the refractory chemicals contained in the scouring agent A and swelling agent may not be mineralized and their biodegradability may not be improved by ozonation. However, the BOD/DOC ratio of scouring agent B increased from 0.3 to 0.45 after ozonation. Based on the results described above, advanced treatment process involving the ozonation without and with the addition of hydrogen peroxide, followed by biological treatment was proposed for the treatment of refractory wastewater discharged from the textile-dyeing process.

  16. Analysis of the use of biomass as an energy alternative for the Portuguese textile dyeing industry

    International Nuclear Information System (INIS)

    Nunes, L.J.R.; Matias, J.C.O.; Catalão, J.P.S.

    2015-01-01

    The energy efficiency and the development of environmentally correct policies are current topics, especially when applied to the industrial sector with the objective of increasing the competitiveness of the enterprises. Portuguese textile dyeing sector, being a major consumer sector of primary energy, needs to adopt measures to improve its competitiveness. Biomass appears to be a viable and preferred alternative energy source for the sector, while simultaneously develops an entire forest industry devoted to the supply of forest solid fuels. This work carries out a comprehensive PEST (political, economic, social and technological) analysis, which analyses Political, Economic, Social and Technological aspects of the replacement of the fossil fuels traditionally used in this sector by biomass, providing a framework of environmental factors that influence the strategic management of the companies. The main advantages are the reduction of external dependence on imported fuel due to the use of an endogenous renewable resource, the creation and preservation of jobs, the increased competitiveness of the sector by reducing energy costs, the use of national technology and the reduction of greenhouse gases emissions. - Highlights: • The Portuguese textile dyeing sector, being a major consumer sector of primary energy, is addressed. • Biomass is a viable and preferred alternative energy source for the sector. • A PEST (political, economic, social and technological) analysis is carried out. • The implications of the replacement of fossil fuels with biomass are studied

  17. Effects of radiation on wastewater from textile industries in Ghana

    International Nuclear Information System (INIS)

    Dogbe, S.A.; Emi-Reynolds, G.; Banini, G.K.

    2001-01-01

    Wastewater samples from three textile industries in Ghana were progressively irradiated in a gamma irradiator of dose rate 7.8 kGy/h. Gamma irradiation alone was done, and also in combination with hydrogen peroxide, sodium peroxide and ferrous ammonium sulphate. Preliminary work involved irradiation of model aqueous solutions of six textile dyes commonly used in Ghana. The dyes were Cibacron Yellow 6G, Cibacron Violet 2R, Basilen Blue P 5R, Basilen Brown P 2R, Solidazol Red RB, Acramin Green FB. Colour and pH of the wastewater and dye solutions were found to decrease with irradiation. Decolouration of the wastewater improved further when irradiation was carried out in combination with the chemical agents. Ferrous ammonium sulphate showed the most improved decolouration. Values of chemical oxygen demand (COD) of the wastewater were found to decrease with irradiation. (author)

  18. In-situ Decolorization of Residual Dye Effluent in Textile Jet Dyeing Machine by Ozone

    Directory of Open Access Journals (Sweden)

    Irfan Ahmed Shaikh

    2014-12-01

    Full Text Available In this study, a new idea of decolourization was investigated in which residual dyeing effluent from textile dyeing process was treated using O3 in the same machine where it was generated. The novelty comes from the idea of doing dyeing and treatment simultaneously. At the completion of dyeing process, O3 gas was injected directly into the machine to remove colour and COD from the wastewater. To evaluate the effectiveness of new method, pilot-scale studies were performed, and decolourization of residual dyeing effluents containing C.I. Reactive Orange 7, C.I. Reactive Blue 19, and C.I. Reactive Black 5 was carried out in specially built textile jet dyeing machine. The results showed that almost 100% colour removal and 90% COD reduction were achieved when process conditions such as pH, dye concentration (mg/L, ozone production rate (g/hr, and temperature were optimized. The study concludes that new method has a great potential to eliminate the need of a separate end-of-the-pipe wastewater treatment system, thus offering an on-site and cost-effective solution.

  19. Textiles and clothing sustainability sustainable textile chemical processes

    CERN Document Server

    2017-01-01

    This book highlights the challenges in sustainable wet processing of textiles, natural dyes, enzymatic textiles and sustainable textile finishes. Textile industry is known for its chemical processing issues and many NGO’s are behind the textile sector to streamline its chemical processing, which is the black face of clothing and fashion sector. Sustainable textile chemical processes are crucial for attaining sustainability in the clothing sector. Seven comprehensive chapters are aimed to highlight these issues in the book.

  20. Early evidence (late 2nd millennium BCE of plant-based dyeing of textiles from Timna, Israel.

    Directory of Open Access Journals (Sweden)

    Naama Sukenik

    Full Text Available In this article, we focus on the analysis of dyed textile fragments uncovered at an early Iron Age (11th-10th centuries BCE copper smelting site during new excavations in the Timna Valley conducted by the Central Timna Valley (CTV Project, as well as those found by the Arabah Expedition at the Hathor Temple (Site 200, dated to the Late Bronze/early Iron Ages (13th-11th centuries BCE. Analysis by HPLC-DAD identified two organic dyestuffs, Rubia tinctorum L. and indigotin, from a plant source (probably Isatis tinctoria L.. They are among the earliest plants known in the dyeing craft and cultivated primarily for this purpose. This study provides the earliest evidence of textiles dyed utilizing a chemical dyeing process based on an industrial dyeing plant from the Levant. Moreover, our results shed new light on the society operating the copper mines at the time, suggesting the existence of an elite that was interested in these high quality textiles and invested efforts in procuring them by long-distance trade.

  1. Early evidence (late 2nd millennium BCE) of plant-based dyeing of textiles from Timna, Israel.

    Science.gov (United States)

    Sukenik, Naama; Iluz, David; Amar, Zohar; Varvak, Alexander; Workman, Vanessa; Shamir, Orit; Ben-Yosef, Erez

    2017-01-01

    In this article, we focus on the analysis of dyed textile fragments uncovered at an early Iron Age (11th-10th centuries BCE) copper smelting site during new excavations in the Timna Valley conducted by the Central Timna Valley (CTV) Project, as well as those found by the Arabah Expedition at the Hathor Temple (Site 200), dated to the Late Bronze/early Iron Ages (13th-11th centuries BCE). Analysis by HPLC-DAD identified two organic dyestuffs, Rubia tinctorum L. and indigotin, from a plant source (probably Isatis tinctoria L.). They are among the earliest plants known in the dyeing craft and cultivated primarily for this purpose. This study provides the earliest evidence of textiles dyed utilizing a chemical dyeing process based on an industrial dyeing plant from the Levant. Moreover, our results shed new light on the society operating the copper mines at the time, suggesting the existence of an elite that was interested in these high quality textiles and invested efforts in procuring them by long-distance trade.

  2. Remediation of textile dye waste water using a white-rot fungus Bjerkandera adusta through solid-state fermentation (SSF).

    Science.gov (United States)

    Robinson, Tim; Nigam, Poonam Singh

    2008-12-01

    A strict screening strategy for microorganism selection was followed employing a number of white-rot fungi for the bioremediation of textile effluent, which was generated from one Ireland-based American textile industry. Finally, one fungus Bjerkandera adusta has been investigated in depth for its ability to simultaneously degrade and enrich the nutritional quality of highly coloured textile effluent-adsorbed barley husks through solid-state fermentation (SSF). Certain important parameters such as media requirements, moisture content, protein/biomass production and enzyme activities were examined in detail. A previously optimised method of dye desorption was employed to measure the extent of dye remediation through effluent decolorisation achieved as a result of fungal activity in SSF. B. adusta was capable of decolourising a considerable concentration of the synthetic dye effluent (up to 53%) with a moisture content of 80-85%. Protein enrichment of the fermented mass was achieved to the extent of 229 g/kg dry weight initial substrate used. Lignin peroxidase and laccase were found to be the two main enzymes produced during SSF of the dye-adsorbed lignocellulosic waste residue.

  3. Mycoremediation of Textile Dyes: Application of Novel Autochthonous Fungal Isolates

    Directory of Open Access Journals (Sweden)

    Sweety

    2017-07-01

    Full Text Available Four fungal isolates Trichoderma virens, Phlebiopsis cf. ravenelii, Talaromyces stipitatus, Aspergillus niger originally isolated from the textile dye contaminated soil of Meerut (U.P. India. They were used for the decolorization studies of selected textile azo dyes under laboratory conditions. Out of total 74 isolates, selected four fungal strains were picked on the basis of primary screening carried out using agar layer decolorization method. Decolorization efficiency of textile dyes was studied at an interval of 3, 5, 7 and 9 days at temperatures 20, 25, 30 and 40°C using five synthetic dyes viz. Xylene cynol FF, Brilliant blue R, Aniline Blue, Orange G II and Crystal violet. Decolorization study was carried out under shaking and stationary conditions at pH 4.0, 5.4, 6.5, and 8.0. The results obtained showed that Trichoderma virens and Aspergillus niger were more efficient then Phlebiopsis cf. ravenelii and Talaromyces stipitatus. Highest biodegradation activities of dyes by these aboriginal fungal isolates were observed at pH 5.4 after 9 days of incubation. Maximum decolorization 99.84 % was achieved by Aspergillus niger, followed by Trichoderma virens. This is the first report where the bioremediation aspects of Phlebiopsis cf. ravenelii and Talaromyces stipitatus has been revealed.

  4. The Fuzzy u-Chart for Sustainable Manufacturing in the Vietnam Textile Dyeing Industry

    Directory of Open Access Journals (Sweden)

    Kim-Phung Truong

    2017-07-01

    Full Text Available The inevitability of measurement errors and/or humans of subjectivity in data collection processes make accumulated data imprecise, and are thus called fuzzy data. To adapt to this fuzzy domain in a manufacturing process, a traditional u control chart for monitoring the average number of nonconformities per unit is required to extend. In this paper, we first generalize the u chart, named fuzzy u-chart, whose control limits are built on the basis of resolution identity, which is a well-known fuzzy set theory. Then, an approach to fuzzy-logic reasoning, incorporating the decision-maker’s varying levels of optimism towards the online process, is proposed to categorize the manufacturing conditions. In addition, we further develop a condition-based classification mechanism, where the process conditions can be discriminated into intermittent states between in-control and out-of-control. As anomalous conditions are monitored to some extent, this condition-based classification mechanism can provide the critical information to deliberate the cost of process intervention with respect to the gain of quality improvement. Finally, the proposed fuzzy u-chart is implemented in the Vietnam textile dyeing industry to replace its conventional u-chart. The results demonstrate that the industry can effectively evade unnecessary adjustments to its current processes; thus, the industry can substantially reduce its operational cost and potential loss.

  5. Bio-degradation of synthetic textile dyes by thermophilic lignolytic fungal isolates

    Directory of Open Access Journals (Sweden)

    Nidhi Sahni

    2014-10-01

    Full Text Available Synthetic dyes are extensively used in different industries like textile dyeing, paper, printing, color, photography, pharmaceutics and cosmetics. These are generally toxic and carcinogenic in nature. If not treated, they will remain in nature for a long period of time as they are recalcitrant. Among these, azo dyes represent the largest and most versatile class of synthetic dyes. Approximately 10-15% of the dyes are released into the environment during manufacture and usage. Various methods are used for dye removal viz. physical, chemical, electrochemical and biological. Advantage of chemical, electrochemical and biological methods over physical involves the complete destruction of the dye, but chemical and electrochemical methods are found to be expensive and have operational problems. So the biological method is preferred over other methods for degradation/decolorization of dyes. In the present study, thermophilic lignolytic fungal culture was isolated from compost/soil/digested slurry/plant debris, were subjected for acclimatization to Remazol Brilliant Blue (RBB at 0.05% concentration, in the malt extract broth (MEB. The most promising fungal isolates were used for further dye degradation studies. The results suggest that the isolates T10, T14 and T17 as a useful tool for degradation of reactive dyes.

  6. Supercritical carbon dioxide for textile applications and recent developments

    Science.gov (United States)

    Eren, H. A.; Avinc, O.; Eren, S.

    2017-10-01

    In textile industry, supercritical carbon dioxide (scCO2), possessing liquid-like densities, mostly find an application on textile dyeing processes such as providing hydrophobic dyes an advantage on dissolving. Their gas-like low viscosities and diffusion properties can result in shorter dyeing periods in comparison with the conventional water dyeing process. Supercritical carbon dioxide dyeing is an anhydrous dyeing and this process comprises the usage of less energy and chemicals when compared to conventional water dyeing processes leading to a potential of up to 50% lower operation costs. The advantages of supercritical carbon dioxide dyeing method especially on synthetic fiber fabrics hearten leading textile companies to alter their dyeing method to this privileged waterless dyeing technology. Supercritical carbon dioxide (scCO2) waterless dyeing is widely known and applied green method for sustainable and eco-friendly textile industry. However, not only the dyeing but also scouring, desizing and different finishing applications take the advantage of supercritical carbon dioxide (scCO2). In this review, not only the principle, advantages and disadvantages of dyeing in supercritical carbon dioxide but also recent developments of scCO2 usage in different textile processing steps such as scouring, desizing and finishing are explained and commercial developments are stated and summed up.

  7. REUSE IN EXHAUST DYEING PROCESSES OF TEXTILE WASTEWATERS

    OpenAIRE

    P. Monllor; J.F. Sanz; R. Vicente; M. Bonet

    2013-01-01

    Textile dyeing and wet finishing wastewaters are considered a major concern because of the necessity of removing colour and pollutants before their discharge into the environment. Their chemical composition is diverse depending mainly on fashion, material and process. After the homogenization of all the wastewaters coming from the different textile processes, the generally used multi-stage technology for their treatment and purification combines physico-chemical and biological processes. Howe...

  8. Textiles and Apparel Design.

    Science.gov (United States)

    Texas Tech Univ., Lubbock. Home Economics Curriculum Center.

    This document contains teacher's materials for a seven-unit secondary education vocational home economics course on textiles and apparel design. The units cover: (1) fiber/fiber characteristics and textile development (including fabrication and dyeing, printing, and finishing); (2) textile and apparel design industries (including their history and…

  9. Process evaluation and treatability study of wastewater in a textile dyeing industry

    Energy Technology Data Exchange (ETDEWEB)

    Mazumder, Debabrata [Civil Engineering Department, Bengal Engineering and Science University, Shibpur, P.O. - Botanic Garden, Horah, West Bengal - 711 103 (India)

    2011-07-01

    The process was investigated in a textile dying unit and subsequently wastewater generation profile was studied for the development of a viable treatment. The dyeing unit under the study generated a considerable volume of wastewater containing inorganic chemicals and organic reactive green dye. Chemical oxygen demand (COD) resulting from all the chemically oxidizible substances and the residual color of the dye were targeted for removal. The wastewater samples were collected from different sub-processes and then characterized for the parameters viz. pH, Total solid, Suspended solid, Dissolved solid, COD and Alkalinity. A composite wastewater sample was prepared according to the measured wastewater discharge from various unit operations and used for treatability study. In the first stage, coagulation-flocculation with alum and chemical oxidation with bleaching powder were performed separately. Subsequently, adsorption study was conducted with crushed burnt coal (C.B.C.) on the composite wastewater, initially treated with 10% bleaching powder solution. After several trials, this combination was found to be effective for a C.B.C. content of 10% under a contact period of 90 minutes, which showed 100% colour and about 95% COD removal.

  10. A survey of extraction solvents in the forensic analysis of textile dyes.

    Science.gov (United States)

    Groves, Ethan; Palenik, Christopher S; Palenik, Skip

    2016-11-01

    The characterization and identification of dyes in fibers can be used to provide investigative leads and strengthen associations between known and questioned items of evidence. The isolation of a dye from its matrix (e.g., a textile fiber) permits detailed characterization, comparison and, in some cases, identification using methods such as thin layer chromatography in conjunction with infrared and Raman spectroscopy. A survey of dye extraction publications reveals that pyridine:water (4:3) is among the most commonly cited extraction solvent across a range of fiber and dye chemistries. Here, the efficacy of this solvent system has been evaluated for the extraction of dyes from 172 commercially prevalent North American textile dyes. The evaluated population represents seven dye application classes, 18 chemical classes, and spans nine types of commercial textile fibers. The results of this survey indicate that ∼82% of the dyestuffs studied are extractable using this solvent system. The results presented here summarize the extraction efficacy by class and fiber type and illustrate that this solvent system is applicable to a wider variety of classes and fibers than previously indicated in the literature. While there is no universal solvent for fiber extraction, these results demonstrate that pyridine:water represents an excellent first step for extracting unknown dyes from questioned fibers in forensic casework. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  11. Aquatic degradation of textile dyes using ionizing and non ionizing radiation

    International Nuclear Information System (INIS)

    Sadek, S.A.; Abdel-Hamid, A.S.; Ebraheem, S.

    2002-01-01

    Complete text of publication follows. In this study the possibility of the use of γ-rays and sunlight for the degradation of fast violet 2rl (fv) and astrazone red 6b (ar) were investigated. These dyes are released to the wastewater streams originating from the industrial textile processing. The degree of degradation in dye concentration was calculated and was found to be completed at about 3.0 kGy for fast violet and at about 1.5 for astrazone in the case of using sunlight, the degradation was completed in two hours by using titanium dioxide as heterogeneous catalyst in the medium, while without any additives the degradation occurred in 30 days for both dyes. The kinetics of degradation process was found to follow first order reaction. The effect of O 2 , N 2 , H 2 O 2 on the rate of degradation was also studied

  12. Electron beam treatment plant for textile dyeing wastewater

    International Nuclear Information System (INIS)

    Han, B.; Kim, J.; Kim, Y.; Choi, J.; Ahn, S.; Makarov, I.E.; Ponomarev, A.V.

    2006-01-01

    A pilot plant for treating 1,000 m 3 of textile dyeing wastewater per day with electron beam has constructed and operated continuously in Daegu, Korea since 1998. This plant is combined with biological treatment system and it shows the reduction of chemical reagent consumption, and also the reduction in retention time with the increase in removal efficiencies of COD Cr and BOD 5 up to 30∼40%. Increase in biodegradability after radiation treatment of aqueous-organic systems is due to radiolytical conversions of non-biodegradable compounds. On the basis of data obtained from pilot plant operation, construction of actual industrial scale plant has started in 2003, and will be finished by 2005. This plant is located on the area of existing wastewater treatment facility (Daegu Dyeing Industrial Complex) and to have treatment capacity 10,000 m 3 of wastewater per day using one 1 MeV, 400 kW accelerator, and combined with existing bio- treatment facility. The overall construction cost and the operation cost in the radiation processing, when compared to other conventional and advanced oxidation techniques, are more cost-effective and convenient for wastewater treatment. This project is supported by the International Atomic Energy Agency (IAEA) and Korean Government. (author)

  13. Adsorption of Acid Yellow-73 and Direct Violet-51 Dyes from Textile Wastewater by Using Iron Doped Corncob Charcoal

    Directory of Open Access Journals (Sweden)

    Mujtaba Baqar

    2015-06-01

    Full Text Available The presence of synthetic dyes in textile industry wastewater lead to deterioration of precious fresh water resources, making the need to remove dyes crucial for environmental protection. Recently, different techniques have been employed to remove these dyes from water resources. Among them, biosorption has gained tremendous popularity due to its eco-friendly nature and inexpensive method. In this study, the removal potential of two acid dyes, i.e. yellow-73 and direct violet-51, was assessed from textile effluent samples using iron modified corncob charcoal. The adsorption efficiency ranged between 93.93 ­ 97.96 % and 92.2 - 95.4 % for acid yellow-73 and direct violet-51, respectively. Furthermore, study highlights optimum parameters for successful adsorption of these dyes, such as stirring time (numbers, pH (numbers, temperature (numbers, and adsorbent dosage (numbers. Keeping in consideration these findings, we recommend the use of Iron Doped Corncob Charcoal (IDCC as a low-cost, efficient alternative for wastewater treatment, primarily minimizing the detrimental effects of hazardous dyes.

  14. Microbial degradation of textile industrial effluents | Palamthodi ...

    African Journals Online (AJOL)

    Textile waste water is a highly variable mixture of many polluting substance ranging from inorganic compounds and elements to polymers and organic products. To ensure the safety of effluents, proper technologies need to be used for the complete degradation of dyes. Traditionally, treatments of textile waste water involve ...

  15. Design Management in the Textile Industry

    DEFF Research Database (Denmark)

    Bang, Anne Louise

    2013-01-01

    In this paper we explore textile design activities and textile design management from an industrial network perspective. The textile industry is probably one of the most globalized manufacturing industries in the world and thus one of the most dispersed industries on the globe. Most studies...... on design management are framed inside the organisational context of the firm. In this study the role and practice of textile design is addressed in perspective of the global textile production network. The empirical data stems from six case studies exploring how different types of enterprises are organised...

  16. Efficiency and Import Penetrationon the Productivity of Textile Industry and Textile Products

    Directory of Open Access Journals (Sweden)

    Catur Basuki Rakhmawan

    2012-12-01

    Full Text Available Although textile industry and textile products belong to the strategic sub-sector of manufacturing industry in Indonesia, they are facing problems on the availability of energy, old production machines, and the flooding of imported products into the domestic market. This study is aimed to analyze the efficiency and productivity as performance indicators and how the efficiency and import penetration affect the productivity of textile industry and textile products. The methods of data analysis used in this research are divided in two phases. The first phase, the non-metric approach of Data Envelopment Analysis (DEA is applied to measure the efficiency and productivity. Secondly, the fixed effect model of econometric regression approach is used to find out the effects of efficiency and import penetration on the productivity of textile industry and textile products. The result shows that the ave-rage level of efficiency of textile industry and textile products during the period of 2004 – 2008 is about 40 percent with a growth rate of average productivity increases 2.4 percent. Whereas, the econometric estimation results indicate that the increase of efficiency will positively and significantly affect the productivity of textile industry and textile products. On the other hand, the increase of import penetration will negatively affect the productivity of this industry.

  17. Jackfruit (Artocarpus heterophyllus lamk) wood waste as a textile natural dye by micowave-assisted extraction method

    Science.gov (United States)

    Qadariyah, Lailatul; Gala, Selfina; Widoretno, Dhaniar Rulandri; Kunhermanti, Delita; Bhuana, Donny S.; Sumarno, Mahfud, Mahfud

    2017-05-01

    The development of technology causes most of textile industries in Indonesia prefer to use synthetic dyes in the fabric dyeing process. In fact, synthetic dyes is able to have negative effect since it is is toxic to the health of workers and environment. To resolve this issues, one way to do is to use natural dyes. One of untapped potential in Indonesia is wood waste of jackfruit from furniture industry. Jackfruit wood itself containing dyestuffs which gives yellow color pigment so that it can be used as an alternative source of natural dyes. The purpose of this research is to study the effect of extraction time, mass to solvent volume ratio, and microwave power to yield of dyes. The extract of dye analyzed by UV-Visible Spectrophotometer and GC-MS, along the coloring and endurance tests of natural dyes on fabric and compare it with synthetic dyes. In this research, material is going to be extracted is the wood of jackfruit (Artocarpus heterophyllus lamk) with material size between 35 mesh - 60 mesh. The extraction process is done by using ethanol 96%. Extraction using MAE is carried out at the ratio of materials to solvent of 0,02-0,1 g/mL, the microwave power of 100-800 Watt, and the extraction time of 10-90 minutes. The conclusion is at microwave power of 400 Watt, material to solvent ratio of the 0,02 g/mL, the yield is 3,39% while at microwave power of 600 Watt, material to solvent ratio of the 0,02 g/mL, the yield is 3,67% with extraction time of 30 minutes. The highest recovery from ethanol 96% solvent is 60,41%. The result of UV-Vis Spectrophotometry and GC-MS test show that there is a chromophore compound in the extract of natural dye. The test results show the natural dyes of jackfruit wood can be used to coloring on the textile because it can gives staining result permanently.

  18. Product Diversification of Turmeric (Curcuma Domestica Val) for TextileDyes

    International Nuclear Information System (INIS)

    Kuntari-Sasas; Syafril-Nurdiansyah

    2000-01-01

    In order to increase the use of natural source and variation of naturalpigment for textile dyes, research activity has been carried out in productdiversification of turmeric for textile dyes however its fixation ability tocotton fibre in this dyes does not have strong fixation ability to cottonfibre in order to improve its colour fastness it was necessary to do aftertreatment with mordant. Up to present time, it has been well known thatturmeric was used as raw material for medicine and cosmetic. Considering thatturmeric contains of carbonyl as chromophore in natural pigment. it has highpossibility to serve it as textile dyes. In this study, turmeric wasextracted with water and used its yields for dyeing cotton fabrics. Theextraction was carried out by using water as medium with ratio of 1 : 4 byboiling until reaching the medium ratio of 1 : 2. The extracted turmeric wasre-extracted again with fresh water in the same condition as the previousextraction and repeating the process up to several times until no more dyeswill be extracted out. The mixture of the extracted dyes were then put intoevaporation to obtain dry pigment and was grinned to obtain powder dyes.Color measurement by means of spectrophotometry was subjected to the dyespowder from known various concentrations to obtain the linear calibrationcurve between dyes concentrations and absorbance. The linear equationobtained from this experiment was : Y = 0.0075 + 0.0435 X. From this equationit was calculated that the dyes yields from the whole turmeric extraction was2.6805 %, and from 3 times repeating extraction was 2.2648 % or 84.49 % fromthe whole extracted dyes. Dyeing experiment for cotton fabrics were carriedout at 60 o C for various times of dyeing (30 minutes to 120 minutes). Thedyed fabrics were then mordanted or after treatment with respected potassiumbichromate, aluminum potassium sulphate (Tawas), and diazonium salt (Red SaltB). The dyed fabrics and the mordanted ones were tested for color fastness

  19. Decolourization of remazol black-5 textile dyes using moving bed bio-film reactor

    Science.gov (United States)

    Pratiwi, R.; Notodarmojo, S.; Helmy, Q.

    2018-01-01

    The desizing and dyeing processes in the textile industries produces wastewaster containing high concentration of organic matter and colour, so it needs treatment before released to environment. In this research, removal of azo dye (Remazol Black 5/RB 5) and organic as COD was performed using Moving Bed Biofilm Reactor (MBBR). MBBR is biological treatment process with attached growth media system that can increase removal of organic matter in textile wastewater. The effectiveness of ozonation as pre-treatment process to increase the removal efficiency in MBBR was studied. The results showed that in MBBR batch system with detention time of 1 hour, pre-treatment with ozonation prior to MBBR process able to increase the colour removal efficiency of up to 86.74%. While on the reactor without ozone pre-treatment, the colour removal efficiency of up to 68.6% was achieved. From the continuous reactor experiments found that both colour and COD removal efficiency depends on time detention of RB-5 dyes in the system. The higher of detention time, the higher of colour and COD removal efficiency. It was found that optimum removal of colour and COD was achieved in 24 hour detention time with its efficiency of 96.9% and 89.13%, respectively.

  20. ENERGY RECOVERY FOR CONTINUOUS DYEING PROCESS IN TEXTILE INDUSTRY ENTERPRISES

    Directory of Open Access Journals (Sweden)

    V. N. Romaniuk

    2015-01-01

    Full Text Available The paper ascertains and presents alteration in the energy consumption as a consequence of utilizing the low-temperature waste streams commonly used in the lines of continuous dyeing at the finishing shops of textile enterprises of Belarus. The utilization realizes through the engagement of lithium-bromide absorption heat pumps with various energy characteristics such as the heating coefficient (relative conversion ratio COPhp = 1,15; 1,7; 2,2 and the heating capacity. The latter associates with the converted heat-flow energy utilization variant with the heat-transfer medium heating system scheme (one-, twoand multistage heating. The article considers transition to previously not applied service-water preheating due to the technological acceptance of feeding higher temperature water into the dyeing machine and widening specification of the heattransfer media. The authors adduce variants of internal and external energy use and their evaluation based on the relative energy and exergy characteristics. With results of the thermodynamic analysis of the modernized production effectiveness the researchers prove that alongside with traditional and apparent interior utilization of the energy associated with the stream heat recuperation, it is advisable to widen the range of applied heat-transfer media. The transition to the service water twoand multi-stage preheating is feasible. The study shows that the existing energy supply efficiency extremely low index-numbers improve by one or two degrees. Since they are conditioned, inter alia, by the machinery design, traditional approach to energy supply and heat-medium usage as well as the enterprise whole heating system answering requirements of the bygone era of cheap energy resources. The authors examine the continuous dyeing line modernization options intending considerable investments. Preliminary economic assessment of such inevitable modernization options for the enterprise entire heat-and-power system

  1. Electrochemical Techniques in Textile Processes and Wastewater Treatment

    Directory of Open Access Journals (Sweden)

    Mireia Sala

    2012-01-01

    Full Text Available The textile industry uses the electrochemical techniques both in textile processes (such as manufacturing fibers, dyeing processes, and decolorizing fabrics and in wastewaters treatments (color removal. Electrochemical reduction reactions are mostly used in sulfur and vat dyeing, but in some cases, they are applied to effluents discoloration. However, the main applications of electrochemical treatments in the textile sector are based on oxidation reactions. Most of electrochemical oxidation processes involve indirect reactions which imply the generation of hypochlorite or hydroxyl radical in situ. These electrogenerated species are able to bleach indigo-dyed denim fabrics and to degrade dyes in wastewater in order to achieve the effluent color removal. The aim of this paper is to review the electrochemical techniques applied to textile industry. In particular, they are an efficient method to remove color of textile effluents. The reuse of the discolored effluent is possible, which implies an important saving of salt and water (i.e., by means of the “UVEC Cell”.

  2. Waste-heat recovery potential in Turkish textile industry. Case study for city of Bursa

    Energy Technology Data Exchange (ETDEWEB)

    Pulat, E.; Etemoglu, A.B.; Can, M. [Uludag University, Faculty of Engineering and Architecture, Mechanical Engineering Department, Gorukle, TR-16059, Bursa (Turkey)

    2009-04-15

    Textile sector of Turkey has a large production capacity and it is one of the important sectors. Many industrial heating processes generate waste energy in textile industry. Therefore, there is a tremendous waste-heat potential to utilize in textile applications. This study assesses the potential of waste-heat obtained from particularly dyeing process at textile industry in Bursa where textile center of Turkey. Energy consumptions could be decreased by using of waste-heat recovery systems (WHRSs). A thermodynamic analysis is performed in this study. An exergy-based approach is performed for optimizing the effective working conditions for WHRSs with water-to-water shell and tube heat exchanger. The payback period is found to be less than 6 months. The variations of the parameters which affect the system performance such as waste-water inlet temperature, mass flow rate, cooling water inlet pressure and dead state conditions are examined respectively. The results of the analysis show that the exergy destruction rate and economical profit increase with increasing of mass flow rate of the waste water. Similarly, exergy destruction rate, effectiveness and economical profit increase while the second law efficiency decreases as the waste-water inlet temperature increases. (author)

  3. Biodegradability oriented treatability studies on high strength segregated wastewater of a woolen textile dyeing plant.

    Science.gov (United States)

    Baban, Ahmet; Yediler, Ayfer; Ciliz, NilgunKiran; Kettrup, Antonius

    2004-11-01

    Textile dyeing and finishing industry involves considerable amount of water usage as well as polluted and highly colored wastewater discharges. Biological treatability by means of mineralization, nitrification and denitrification of high strength woolen textile dye bathes, first- and second-rinses is presented. COD fractionation study was carried out and kinetic parameters were determined. Biodegradability of organic compounds in highly loaded composite wastewater after segregation and the effluent of applied biological treatment of high strength composite wastewater were measured by determining oxygen consumption rates. The results were used in terms of assessing an alternative method for inert COD fractionation. The study implied that about 80% soluble COD, 50% color and 75% toxicity reduction were possible by single sludge biological processes. Sixteen per cent of total COD was found to be initially inert. Inert fraction was increased to 22% by production of soluble and particulate microbial products through biological treatment. copyright 2004 Elsevier Ltd.

  4. Electrochemical decolourisation of cotton dye baths for reuse purposes: a way to reduce salinity of the textile wastewater

    OpenAIRE

    López Grimau, Víctor; Gutiérrez Bouzán, María Carmen; Sala, Mireia; Crespi Rosell, Martin

    2012-01-01

    Electrochemical techniques offer many advantages for the treatment of industrial effluents. These processes are clean, operate at room temperature, and in most cases, do not need the addition of reagents (as in the case of reactive dyeing effluents). In particular, the electrochemical treatment of textile effluents is an efficient method to remove colour. In this work, diverse synthetic effluents containing reactive dyes were treated in an electrochemical cell with Ti/PtO x electrodes. The ef...

  5. Efficiency and Import Penetration on the Productivity of Textile Industry and Textile Products

    Directory of Open Access Journals (Sweden)

    Catur Basuki Rakhmawan

    2012-12-01

    Full Text Available Although textile industry and textile products belong to the strategic sub-sector of manufacturing industry in Indonesia, they are facing problems on the availability of energy, old production machines, and the flooding of imported products into the domestic market. This study is aimed to analyze the efficiency and productivity as performance indicators and how the efficiency and import penetration affect the productivity of textile industry and textile products. The methods of data analysis used in this research are divided in two phases. The first phase, the non-metric approach of Data Envelopment Analysis (DEA is applied to measure the efficiency and productivity. Secondly, the fixed effect model of econometric regression approach is used to find out the effects of efficiency and import penetration on the productivity of textile industry and textile products. The result shows that the average level of efficiency of textile industry and textile products during the period of 2004 – 2008 is about 40 percent with a growth rate of average productivity increases 2.4 percent. Whereas, the econometric estimation results indicate that the increase of efficiency will positively and significantly affect the productivity of textile industry and textile products. On the other hand, the increase of import penetration will negatively affect the productivity of this industry.

  6. Break-through of Mass Integration in Textile Industry through Development of Generic Water Recycle Schemes

    DEFF Research Database (Denmark)

    Wenzel, Henrik

    2003-01-01

    processing is one of the largest and oldest industries world-wide and responsible for a substantial resource consumption and pollution. Especially the wet processing part of the industry, i.e. pre-treatment, dyeing, printing and finishing, is polluting and resource consuming in terms of both water, energy...... dyehouse, Trevira Neckelmann A/S, has now for two consecutive years successfully implemented direct water recycling saving 40 % water. Mass Integration and water pinch techniques were used to identify the potentials and combined with textile intelligence to achieve the best system design for the reuse...... of water, energy and chemicals. The same approach of combining pinch techniques and textile intelligence was applied in South African textile industry. System designs for water recycling in both cotton and acrylic wet treatment were developed. The system for cotton was successfully documented in full scale...

  7. Degradation of disperse dye from textile effluent by free and immobilized Cucurbita pepo peroxidase

    Science.gov (United States)

    Boucherit, N.; Abouseoud, M.; Adour, L.

    2012-06-01

    Disperse dyes constitute the largest group of dyes used in local textile industry. This work evaluates the potential of the Cucurbita peroxidase(C-peroxidase) extracted from courgette in the decolourization of disperse dye in free and immobilized form. The optimal conditions for immobilization of C-peroxidase in Ca-alginate were identified. The immobilization was optimized at 2%(w/v) of sodium alginate and 0.2 M of calcium chloride. After optimization of treatment parameters, the results indicate that at pH 2, dye concentration: 80 mg/L(for FCP) and 180 mg/L(for ICP), H2O2 dose: 0,02M (for FCP) and 0,12M(for ICP), the decolourization by free and immobilized C-peroxidase were 72.02% and 69.71 % respectively. The degradation pathway and the metabolic products formed after the degradation were also predicted using UV-vis spectroscopy analysis.

  8. Hydrogen production and metal-dye bioremoval by a Nostoc linckia strain isolated from textile mill oxidation pond.

    Science.gov (United States)

    Mona, Sharma; Kaushik, Anubha; Kaushik, C P

    2011-02-01

    Biohydrogen production by Nostoc linckia HA-46, isolated from a textile-industry oxidation-pond was studied by varying light/dark period, pH, temperature and ratio of carbon-dioxide and argon in the gas-mixture. Hydrogen production rates were maximum under 18 h of light and 6 h of darkness, pH 8.0, 31°C, a CO(2):Ar ratio 2:10. Hydrogen production of the strain acclimatized to 20 mg/L of chromium/cobalt and 100 mg/L of Reactive red 198/crystal violet dye studied in N-supplemented/deficient medium was 6-10% higher in the presence of 1.5 g/L of NaNO(3). Rates of hydrogen production in the presence of dyes/metals by the strain (93-105 μmol/h/mg Chlorophyll) were significantly higher than in medium without metals/dyes serving as control (91.3 μmol/h/mg Chlorophyll). About 58-60% of the two metals and 35-73% of dyes were removed by cyanobacterium. Optimal conditions of temperature, pH and metals/dyes concentration for achieving high hydrogen production and wastewater treatment were found practically applicable as similar conditions are found in the effluent of regional textile-mills. Copyright © 2010 Elsevier Ltd. All rights reserved.

  9. Industrial recovered-materials-utilization targets for the textile-mill-products industry

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-01-01

    The Congress, in the National Energy Conservation and Policy Act of 1978 (NECPA), directed the Department of Energy to establish materials recovery targets for the metals and metal products, paper and allied products, rubber, and textile-mill-products industries. The targets were developed to provide incentives for using energy-saving recorded materials and to provied a yardstick for measuring progress and improvement in this endeavor. The NECPA indicates that the targets should represent the maximum technically and economically feasible increase in the use of energy-saving recovered materials that each industry can achieve progressively by January 1, 1987. Materials affected by recovered-materials targets include and are limited to aluminum, copper, lead, zinc, iron, steel, paper and associated products, textile-mill, products, and rubber. Using information gathered from the textile-mill-products industry and from other textile-relaed sources, DOE has developed recovered materials targets for that industry. This report presents those targets and their basis and justification. Following an overview of the textile industry, the chapters are: Textile-Mill-Products Industry Operations; Economic Analysis of the Textile-Mill-Products Industry; Governmental and Regulatory Influence on the US Textile Industry; Current Mill Use of Recovered Materials in the Textile-Mill-Products Industry; Limitations on the Use of Recovered Materials in the US Textile-Mill-Products Industry; Materials-Recovery Targets; and Government and Industry Actions That Could Increase the Use of Recovered Materials.

  10. The effect of the textile industry dye bath additive EDTMPA on colour removal characteristics by ozone oxidation.

    Science.gov (United States)

    Olmez, T; Kabdaşli, I; Tünay, O

    2007-01-01

    In this study, the effects of the phosphonic acid based sequestering agent EDTMPA used in the textile dye baths on colour and organic matter removal by ozone oxidation was experimentally investigated. Procion Navy HEXL dyestuff that has been commonly used for the reactive dyeing of cellulose fibers was selected as the model component. The organic matter oxidation by ozone was determined to obey the pseudo-first order kinetics as they are treated singly or in combination. COD removal rates obtained from pseudo-first order reaction kinetics showed that oxidation of Navy HEXL alone (0.0947 L/min) was faster than that of EDTMPA (0.0171 L/min) and EDTMPA with dye (0.0155 L/min) at pH 3.0. It was also found that reaction rates of single EDTMPA removal and EDTMPA and dye mixture removal increased as the reaction pH was increased from 3.0 to 10.5.

  11. Evaluation of biodecolorization of the textile azo dye by halophilic archaea

    Directory of Open Access Journals (Sweden)

    Masoomeh Selseleh Hassan-Kiadehi

    2017-09-01

    Discussion and conclusion: In conclusion, our results indicate that halophilic archaea have very high potential to decolorize azo dyes. Regarding high amounts of salts in textile wastewaters, using such microorganisms which can tolerate the harsh environment in order to decolorize azo dyes, could be a new approach in this field.

  12. Ecofriendly biodegradation and detoxification of Reactive Red 2 textile dye by newly isolated Pseudomonas sp. SUK1

    International Nuclear Information System (INIS)

    Kalyani, D.C.; Telke, A.A.; Dhanve, R.S.; Jadhav, J.P.

    2009-01-01

    The aim of this work is to evaluate textile dyes degradation by novel bacterial strain isolated from the waste disposal sites of local textile industries. Detailed taxonomic studies identified the organisms as Pseudomonas species and designated as strain Pseudomonas sp. SUK1. The isolate was able to decolorize sulfonated azo dye (Reactive Red 2) in a wide range (up to 5 g l -1 ), at temperature 30 deg. C, and pH range 6.2-7.5 in static condition. This isolate also showed decolorization of the media containing a mixture of dyes. Measurements of COD were done at regular intervals to have an idea of mineralization, showing 52% reduction in the COD within 24 h. Induction in the activity of lignin peroxidase and azoreductase was observed during decolorization of Reactive Red 2 in the batch culture, which represented their role in degradation. The biodegradation was monitored by UV-vis, IR spectroscopy, HPLC. The final product, 2-naphthol was characterized by GC-mass spectroscopy. The phytotoxicity study revealed the degradation of Reactive Red 2 into non-toxic product by Pseudomonas sp. SUK1

  13. Greening textile industry in Vietnam

    NARCIS (Netherlands)

    Nguyen Thi Phuong, L.

    2011-01-01

    The textile and garment industry has made a remarkable contribution to the economic development of Vietnam and employs currently a large labor force of 2.5 million people.However, the textile industry is also seen as a most polluting and unsustainable industry due to the use of

  14. Factors affecting the immobilization of fungal biomass on CNT as a biosorbent for textile dyes removal

    Science.gov (United States)

    Adebayo Bello, Ibrahim; Kabbashi, Nassereldeen A.; Zahangir Alam, Md; Alkhatib, Ma'an F.; Nabilah Murad, Fatin

    2017-07-01

    Effluents from dye and textile industries are highly contaminated and toxic to the environment. High concentration of non-biodegradable compounds contributes to increased biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of the wastewater bodies. Dyes found in wastewater from textile industries are carcinogenic, mutagenic or teratogenic. Biological processes involving certain bacteria, fungi and activated carbon have been employed in treating wastewater. These methods are either inefficient or ineffective. These complexities necessitates search for new approaches that will offset all the shortcomings of the present solutions to the challenges faced with textile wastewater management. This study produced a new biosorbent by the immobilization of fungal biomass on carbon nanotubes. The new biosorbent is called “carbon nanotubes immobilized biomass (CNTIB)” which was produced by immobilization technique. A potential fungal strain, Aspergillus niger was selected on the basis of biomass production. It was found out in this studies that fungal biomass were better produced in acidic medium. Aspergillus niger was immobilized on carbon nanotubes. One-factor-at-a time (OFAT) was employed to determine the effect of different factors on the immobilization of fungal biomass on carbon nanotubes and optimum levels at which the three selected parameters (pH, culture time and agitation rate) would perform. Findings from OFAT showed that the optimum conditions for immobilization are a pH of 5, agitation rate of 150rpm and a culture time of 5 days.

  15. Phytoremediation of textile dyes and effluents: Current scenario and future prospects.

    Science.gov (United States)

    Khandare, Rahul V; Govindwar, Sanjay P

    2015-12-01

    Phytoremediation has emerged as a green, passive, solar energy driven and cost effective approach for environmental cleanup when compared to physico-chemical and even other biological methods. Textile dyes and effluents are condemned as one of the worst polluters of our precious water bodies and soils. They are well known mutagenic, carcinogenic, allergic and cytotoxic agents posing threats to all life forms. Plant based treatment of textile dyes is relatively new and hitherto has remained an unexplored area of research. Use of macrophytes like Phragmites australis and Rheum rhabarbarum have shown efficient removal of Acid Orange 7 and sulfonated anthraquinones, respectively. Common garden and ornamental plants namely Aster amellus, Portulaca grandiflora, Zinnia angustifolia, Petunia grandiflora, Glandularia pulchella, many ferns and aquatic plants have also been advocated for their dye degradation potential. Plant tissue cultures like suspension cells of Blumea malcolmii and Nopalea cochenillifera, hairy roots of Brassica juncea and Tagetes patula and whole plants of several other species have confirmed their role in dye degradation. Plants' oxidoreductases such as lignin peroxidase, laccase, tyrosinase, azo reductase, veratryl alcohol oxidase, riboflavin reductase and dichlorophenolindophenol reductase are known as key biodegrading enzymes which break the complex structures of dyes. Schematic metabolic pathways of degradation of different dyes and their environmental fates have also been proposed. Degradation products of dyes and their fates of metabolism have been reported to be validated by UV-vis spectrophotometry, high performance liquid chromatography, high performance thin layer chromatography, Fourier Transform Infrared Spectroscopy, gas chromatograph-mass spectroscopy and several other analytical tools. Constructed wetlands and various pilots scale reactors were developed independently using the plants of P. australis, Portulaca grandiflora, G. pulchella

  16. Experimental Study of Dye Removal from Industrial Wastewater by Membrane Technologies of Reverse Osmosis and Nanofiltration

    Directory of Open Access Journals (Sweden)

    Mohammad Fadhil Abid

    2012-12-01

    Full Text Available Currently, biological method has been utilized in the treatment of wastewater -containing synthetic dyes used by textile industries in Iraq. The present work was devoted to study the operating feasibility using reverse osmosis (RO and nanofiltration (NF membrane systems as an alternative treatment method of wastewater discharged from Iraqi textile mills. Acid red, reactive black and reactive blue dyes were selected, based on the usage rate in Iraq. Effects of dye concentration, pH of solution, feed temperature, dissolved salts and operating pressure on permeate flux and dye rejection were studied. Results at operating conditions of dye concentration?=?65 mg/L, feed temperature?=?39?C and pressure?=?8 bar showed the final dye removal with RO membrane as 97.2%, 99.58% and 99.9% for acid red, reactive black and reactive blue dyes, respectively. With NF membrane, the final dye removal were as 93.77%, 95.67%, and 97% for red, black and blue dyes, respectively. The presence of salt (particularly NaCl in the dye solution resulted in a higher color removal with a permeate flux decline. It was confirmed that pH of solution had a positive impact on dye removal while feed temperature showed a different image. A comparison was made between the results of dye removal in biological and membrane methods. The results showed that membrane method had higher removal potential with lower effective cost. The present study indicates that the use of NF membrane in dye removal from the effluent of Iraqi textile mills is promising.

  17. Sustainability in the textile industry

    CERN Document Server

    2017-01-01

    This book examines in detail key aspects of sustainability in the textile industry, especially environmental, social and economic sustainability in the textiles and clothing sector. It highlights the various faces and facets of sustainability and their implications for textiles and the clothing sector.

  18. Energy-Efficiency Improvement Opportunities for the Textile Industry

    Energy Technology Data Exchange (ETDEWEB)

    China Energy Group; Hasanbeigi, Ali

    2010-09-29

    The textile industry is one of the most complicated manufacturing industries because it is a fragmented and heterogeneous sector dominated by small and medium enterprises (SMEs). Energy is one of the main cost factors in the textile industry. Especially in times of high energy price volatility, improving energy efficiency should be a primary concern for textile plants. There are various energy-efficiency opportunities that exist in every textile plant, many of which are cost-effective. However, even cost-effective options often are not implemented in textile plants mostly because of limited information on how to implement energy-efficiency measures, especially given the fact that a majority of textile plants are categorized as SMEs and hence they have limited resources to acquire this information. Know-how on energy-efficiency technologies and practices should, therefore, be prepared and disseminated to textile plants. This guidebook provides information on energy-efficiency technologies and measures applicable to the textile industry. The guidebook includes case studies from textile plants around the world and includes energy savings and cost information when available. First, the guidebook gives a brief overview of the textile industry around the world, with an explanation of major textile processes. An analysis of the type and the share of energy used in different textile processes is also included in the guidebook. Subsequently, energy-efficiency improvement opportunities available within some of the major textile sub-sectors are given with a brief explanation of each measure. The conclusion includes a short section dedicated to highlighting a few emerging technologies in the textile industry as well as the potential for the use of renewable energy in the textile industry.

  19. Chemical or electrochemical techniques, followed by ion exchange, for recycle of textile dye wastewater.

    Science.gov (United States)

    Raghu, S; Ahmed Basha, C

    2007-10-22

    This paper examines the use of chemical or electrocoagulation treatment process followed by ion-exchange process of the textile dye effluent. The dye effluent was treated using polymeric coagulant (cationic dye-fixing agent) or electrocoagulation (iron and aluminum electrode) process under various conditions such as various current densities and effect of pH. Efficiencies of COD reduction, colour removal and power consumption were studied for each process. The chemical or electrochemical treatment are indented primarily to remove colour and COD of wastewater while ion exchange is used to further improve the removal efficiency of the colour, COD, Fe concentration, conductivity, alkalinity and total dissolved solids (TDS). From the results chemical coagulation, maximum COD reduction of about 81.3% was obtained at 300 mg/l of coagulant whereas in electrocoagulation process, maximum COD removal of about 92.31% (0.25 A/dm2) was achieved with energy consumption of about 19.29 k Wh/kg of COD and 80% (1A/dm(2)) COD removal was obtained with energy consumption of about 130.095 k Wh/kg of COD at iron and aluminum electrodes, respectively. All the experimental results, throughout the present study, have indicated that chemical or electrocoagulation treatment followed by ion-exchange methods were very effective and were capable of elevating quality of the treated wastewater effluent to the reuse standard of the textile industry.

  20. Decolourisation and degradation of textile dyes using a sulphate ...

    African Journals Online (AJOL)

    Successful decolourisation and degradation of textile dyes was achieved in a biosulphidogenic batch reactor using biodigester sludge from a local municipality waste treatment plant as a source of carbon and microflora that augmented a sulphate reducing bacteria (SRB) consortium. Orange II (O II) was decolourised by ...

  1. Determination of fast ozone oxidation rate for textile dyes by using a continuous quench-flow system.

    Science.gov (United States)

    Gomes, Arlindo C; Nunes, José C; Simões, Rogério M S

    2010-06-15

    To study the fast kinetic decolourisation of textile dyes by ozone a continuous quench-flow system was used. This system has not been used before for these purposes. Reaction times in the range of 7-3000 ms were explored. The reaction was quenched with potassium iodide, which proved to be very effective, and the indigo method was used to follow the ozone concentration. Dyes from the most representative chemical classes currently used in the textile industry, i.e. azo and anthraquinone, were selected. Using the initial slope method, the effect of dye and ozone concentrations was researched and the kinetic equations thus established. Using tert-butyl alcohol, as radical scavenger, and pH close to 2.5, the second-order rate constant of the reactant dyes at 280 K varies in the range of 1.20x10(4)-7.09x10(5)M(-1)s(-1); the Acid Orange 7 exhibiting thus its lowest value, the Acid Blue 45 its highest value and the Acid Green 25 and 27 and Direct Yellow 4 intermediate values (approximately 1.6x10(5)M(-1)s(-1)). Without radical scavenger and the pH close to 4, the reaction rate increases one order of magnitude, but, on the reverse, the efficiency of ozone to decolourisation decreases. Copyright 2010 Elsevier B.V. All rights reserved.

  2. Textile industrial enzymatic processes; Enzimologia nel tessile. Biopreparazione del cotone ed uso degli enzimi nell'industria tessile. (2. parte)

    Energy Technology Data Exchange (ETDEWEB)

    Galante, Y. M. [Lamberti SpA, Albizzate, VA (Italy)

    2001-05-01

    In the last ten years, the textile industry has become one of the main field of industrial applications of enzymes. From traditional desizing to enzymatic stone washing to biopolishing of cellulosic fibers to protease treatment of silk and wool to catalase utilization after bleaching, textile processing has evolved into a field of primary importance for modern enzymology. A number of new recombinant and/or bioengineered enzymes (e.g., cellulases) have been recently introduced into textile processing and finishing dye-houses. Furthermore, new recombinant redox enzymes have been developed for dye oxidation on garments or in the liquor bath (e.g., laccase and peroxidase), which in the future might replace more harsh and polluting chemical oxiding systems. [Italian] Si presenta un approccio enzimatico integrato nella filiera tessile e si dimostra che e' possibile e conveniente applicare in un singolo processo differenti enzimi (ad esempio amilasi, pectinasi, catalisi, cellulasi) in successione o in contemporaneo, in combinazione con ausiliari chimici facilmente biodegradabili.

  3. Waste sizing solution as co-substrate for anaerobic decolourisation of textile dyeing wastewaters

    NARCIS (Netherlands)

    Bisschops, I.; Santos, dos A.B.; Spanjers, H.

    2005-01-01

    Dyeing wastewaters and residual size are textile factory waste streams that can be treated anaerobically. For successful anaerobic treatment of dyeing effluents, a co-substrate has to be added because of their low concentration of easily biodegradable compounds. Starch-based size contains easily

  4. A critical review on textile wastewater treatments: Possible approaches.

    Science.gov (United States)

    Holkar, Chandrakant R; Jadhav, Ananda J; Pinjari, Dipak V; Mahamuni, Naresh M; Pandit, Aniruddha B

    2016-11-01

    Waste water is a major environmental impediment for the growth of the textile industry besides the other minor issues like solid waste and resource waste management. Textile industry uses many kinds of synthetic dyes and discharge large amounts of highly colored wastewater as the uptake of these dyes by fabrics is very poor. This highly colored textile wastewater severely affects photosynthetic function in plant. It also has an impact on aquatic life due to low light penetration and oxygen consumption. It may also be lethal to certain forms of marine life due to the occurrence of component metals and chlorine present in the synthetic dyes. So, this textile wastewater must be treated before their discharge. In this article, different treatment methods to treat the textile wastewater have been presented along with cost per unit volume of treated water. Treatment methods discussed in this paper involve oxidation methods (cavitation, photocatalytic oxidation, ozone, H2O2, fentons process), physical methods (adsorption and filtration), biological methods (fungi, algae, bacteria, microbial fuel cell). This review article will also recommend the possible remedial measures to treat different types of effluent generated from each textile operation. Copyright © 2016 Elsevier Ltd. All rights reserved.

  5. An investigation to adopt zero liquid discharge in textile dyeing using advanced oxidation processes

    International Nuclear Information System (INIS)

    Ahmd, F.

    2015-01-01

    In this study, a novel idea of using ozone oxidation at the end of reactive dyeing process was explored in order to achieve zero discharge dyeing. An advanced oxidative treatment was given during the dyeing process to remove unfixed and hydrolyzed reactive dyes from cotton substrate. Three different shades were dyed using vinylsulphone reactive class of dyes. At the end of fixation step, washing of fabrics was carried out using appropriate quantities of ozone in the process. Ozone oxidation continued until the liquor was decolorized around 95-100% and COD (Chemical Oxygen Demand) was reduced about 80-90%, thus achieving zero liquid discharge dyeing process. The decolouration efficiency of wastewater was regarded as an indicative of removal of dyes from the textile materials because fabric was being washed continuously in the same liquor. Fabric samples dyed with conventional and new methods were compared in terms of change in shade, colourfastness properties, colour stripping, and fabric appearance. Overall results showed that the use of ozone during reactive dyeing can result in less water consumption, reduced process time, and zero discharge of coloured effluents from textile dyeing factories. (author)

  6. The destructive degradation of some organic textile dye compounds using gamma ray irradiation

    International Nuclear Information System (INIS)

    Abdel-Gawad Emara, A.S.; Abdel-Fattah, A.A.; Ebraheem, S.E.; Ali, Z.I.; Gad, H.

    2001-01-01

    The destructive degradation of 8 coloured reactive and direct dye compounds currently used in the textile industry has been investigated. These dyes are: Levafix Blue ERA (LB), Levafix Brilliant Red E4BA (LBR), Levafix Brilliant Yellow EGA (LBY), Drimarene Scarlet F3G (DS), Drimarene Brilliant Green X3G (DBG), Fast Yellow RL (FY), Fast Violet 2RL (FV) and Fast Orange 3R (FO). The process of degradation of the respective dye has been followed spectrophotometrically at the characteristic lmax. The variation of the colour intensity of aerated aqueous solution of the investigated dyes has been measured as a function of gamma irradiation dose. In all cases, the amplitude of the absorption bands of the dye compound was found to decrease with the increase of the gamma dose. Irradiation was carried out for actual waste and distilled water. By comparing the heights of the absorption maxima in both the visible and ultraviolet ranges, it was found that complete decolouration is attained at lower doses than that needed for the process of degradation of the dye. The kinetics of the degradation process has been traced and the kinetic constant, k 1 , was calculated and found to be concentration dependent indicating a first order reaction in all cases. The radiation-chemical yield (G-value) as a measure of the efficiency of gamma ray to degrade the respective dye was calculated for all dye compounds and it was found that the G-value in all cases increases exponentially for low radiation doses and changes linearly for high radiation doses. Also the K* value (the efficiency coefficient of dye radiolysis) was calculated and compared for the different dye compounds e.g. for FO, FY and FV dyes, the K* values were found to range from 5.5x10 9 to 1.92x10 -7 mol·L -1 '·cm -1 . In addition to the study of a single dye compound in solution, mixtures of different dyes (3 dyes) were also subjected to g-ray irradiation simulating more closely actual waste effluents. Also the effect of some

  7. Experimental Researches Regarding the Ecological Dyeing with Natural Extracts

    Directory of Open Access Journals (Sweden)

    Budeanu Ramona

    2014-12-01

    Full Text Available The concept of ‘environmental awareness’ has recently had a major impact on the textile industry and on the fashion world as well. In this context, the use of natural fibres and the development of natural dyeing processes gradually became important goals of the textile industry. Of all natural textile fibres, hemp is considered to be one of the strongest and most durable. A wide range of natural extracts have been used for natural textile coloration and dyeing. Dyes deriving from natural sources have emerged as an important alternative to synthetic dyes. Ecofriendly, nontoxic, sustainable and renewable natural dyes and pigments have been used for colouring the food substrate, leather, wood, natural fibres and fabrics from the dawn of human history. The purpose of the research is to obtain ecologically coloured fabrics for textiles by using a method of dyeing that relies on natural ingredients extracted from red beet, onion leaves and black tea. The experiments are conducted on three different types of hemp fabrics. This paper presents the results of the studies regarding the dyeing process of hemp fabrics with natural extracts, the colours of the dyed samples inspected with reflectance spectra and the CIE L*a*b* colour space measurements.

  8. Optimization of Dye Removal from Textile Wastewater using ...

    African Journals Online (AJOL)

    OLUWASOGO

    however, this often gets polluted through the activities of man ... study examines the treatment of effluent from a textile industry in Kano ... II. MATERIALS AND METHODS. A. Materials. The textile wastewater used in this research was collected.

  9. Sonochemical co-deposition of antibacterial nanoparticles and dyes on textiles

    Directory of Open Access Journals (Sweden)

    Ilana Perelshtein

    2016-01-01

    Full Text Available The sonochemical technique has already been proven as one of the best coating methods for stable functionalization of substrates over a wide range of applications. Here, we report for the first time on the simultaneous sonochemical dyeing and coating of textiles with antibacterial metal oxide (MO nanoparticles. In this one-step process the antibacterial nanoparticles are synthesized in situ and deposited together with dye nanoparticles on the fabric surface. It was shown that the antibacterial behavior of the metal oxides was not influenced by the presence of the dyes. Higher K/S values were achieved by sonochemical deposition of the dyes in comparison to a dip-coating (exhaustion process. The stability of the antibacterial properties and the dye fastness was studied for 72 h in saline solution aiming at medical applications.

  10. Phytoremediation in education: textile dye teaching experiments.

    Science.gov (United States)

    Ibbini, Jwan H; Davis, Lawrence C; Erickson, Larry E

    2009-07-01

    Phytoremediation, the use of plants to clean up contaminated soil and water, has a wide range of applications and advantages, and can be extended to scientific education. Phytoremediation of textile dyes can be used as a scientific experiment or demonstration in teaching laboratories of middle school, high school and college students. In the experiments that we developed, students were involved in a hands-on activity where they were able to learn about phytoremediation concepts. Experiments were set up with 20-40 mg L(-1) dye solutions of different colors. Students can be involved in the set up process and may be involved in the experimental design. In its simplest forms, they use two-week-old sunflower seedlings and place them into a test tube of known volume of dye solution. Color change and/or dye disappearance can be monitored by visual comparison or with a spectrophotometer. Intensity and extent of the lab work depends on student's educational level, and time constraints. Among the many dyes tested, Evan's Blue proved to be the most readily decolorized azo dye. Results could be observed within 1-2 hours. From our experience, dye phytoremediation experiments are suitable and easy to understand by both college and middle school students. These experiments help visual learners, as students compare the color of the dye solution before and after the plant application. In general, simple phytoremediation experiments of this kind can be introduced in many classes including biology, biochemistry and ecological engineering. This paper presents success stories of teaching phytoremediation to middle school and college students.

  11. Biotreatment of anthraquinone dye Drimarene Blue K 2 RL | Siddiqui ...

    African Journals Online (AJOL)

    Drimarene Blue (Db) K2RL is a reactive anthraquinone dye, used extensively in textile industry, due to poor adsorbability to textile fiber; it has a higher exhaustion rate in wastewater. The dye is toxic, carcinogenic, mutagenic and resistant to degradation. Decolorization of this dye was studied in two different systems.

  12. Competitive situation of clothing and textile industry

    OpenAIRE

    Jansevičiūtė, Daina

    2010-01-01

    This paper is up for discussing the composed competitive situation of Lithuanian clothing and textile industry. Author concisely proposes aspects of competitive ability conception, explores the main statistical information illustrating importance of clothing and textile industry in all manufacturing and economics. Willing to accomplish a statistical data analysis of trade clothing and textile industry competitors and advantages which they have and which influence Lithuanian clothing and texti...

  13. CAREER DEVELOPMENT OF TEXTILE INDUSTRY EMPLOYEES

    Directory of Open Access Journals (Sweden)

    UROŠEVIĆ Snežana

    2017-05-01

    Full Text Available Textile industry is a very important industrial branch because it produces clothes for nearly seven billion people and textile materials for technical usage. It employs a huge number of competitive and qualified, mostly female work force. It is also technologically and technically challenging. Thus, it is vital to employ qualified and well trained employees with certain competences, knowledge and skills in order to respond to rapid technological and market changes. Here, we will consider the influence of the career development on doing business in the textile industry while acquiring the competitive advantage. Career development is a lifelong process and it is includes knowledge management. The term career has several meanings while nowadays it can mean advancement. The career usually reflects the professional development path of an individual during his or her working career. The career is that concept which connects and unifies most strongly and explicitly individual and organizational interests and needs. The theoretical part explains terms such as career development, importance and improvement of employees for an organization, the possibility for career development within the textile industry. The second part of the paper deals with research conducted among the employees of the textile sector in Leskovac, the town in Serbia with a long-lasting textile tradition.

  14. Sorption isotherms, kinetic and optimization process of amino acid proline based polymer nanocomposite for the removal of selected textile dyes from industrial wastewater.

    Science.gov (United States)

    Raghunath, Sharista; Anand, K; Gengan, R M; Nayunigari, Mithil Kumar; Maity, Arjun

    2016-12-01

    In this article, adsorption and kinetic studies were carried out on three textile dyes, namely Reactive Blue 222 (RB 222), Reactive Red 195 (RR 195) and Reactive Yellow 145 (RY 145). The dyes studied in a mixture were adsorbed under various conditions onto PRO-BEN, a bentonite modified with a new cationic proline polymer (l-proline-epichlorohydrin polymer). The proline polymer was characterized by 1 H NMR, Fourier transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS) and TEM. The PRO-BEN composite was characterized by FT-IR, dynamic light scattering (DLS) (zeta potential), TEM imaging, SEM/EDX and X-ray photoelectron spectroscopy (characterize the binding energy). During adsorption studies, factors involving pH, temperature, the initial concentrations of the dyes and the quantity of PRO-BEN used during adsorption were established. The results revealed that the adsorption mechanism was categorized by the Langmuir type 1 isotherm. The adsorption data followed the pseudo-second order kinetic model. The intraparticle diffusion model indicated that adsorption did not only depend on the intraparticle diffusion of the dyes. The thermodynamic parameters verified that the adsorption process was spontaneous and exothermic. The Gibbs free energy values indicated that physisorption had occurred. Successful adsorption of dyes from an industrial effluent was achieved. Desorption studies concluded that PRO-BEN desorbed the dyes better than alumina. This can thereby be viewed as a recyclable remediation material. The PRO-BEN composite could be a cost efficient alternative towards the removal of organic dyes in wastewater treatment. Copyright © 2016 Elsevier B.V. All rights reserved.

  15. Isolation and Characterization of Paracoccus sp. GSM2 Capable of Degrading Textile Azo Dye Reactive Violet 5

    Directory of Open Access Journals (Sweden)

    Mallikarjun C. Bheemaraddi

    2014-01-01

    Full Text Available A potential bacterial strain GSM2, capable of degrading an azo dye Reactive Violet 5 as a sole source of carbon, was isolated from textile mill effluent from Solapur, India. The 16S rDNA sequence and phenotypic characteristics indicated an isolated organism as Paracoccus sp. GSM2. This strain exhibited complete decolorization of Reactive Violet 5 (100 mg/L within 16 h, while maximally it could decolorize 800 mg/L of dye within 38 h with 73% decolorization under static condition. For color removal, the most suitable pH and temperature were pH 6.0–9.0 and 25–40°C, respectively. The isolate was able to decolorize more than 70% of five structurally different azo dyes within 38 h. The isolate is salt tolerant as it can bring out more than 90% decolorization up to a salt concentration of 2% (w/v. UV-Visible absorption spectra before and after decolorization suggested that decolorization was due to biodegradation and was further confirmed by FT-IR spectroscopy. Overall results indicate the effectiveness of the strain GSM2 explored for the treatment of textile industry effluents containing various azo dyes. To our knowledge, this could be the first report on biodegradation of Reactive Violet 5 by Paracoccus sp. GSM2.

  16. Construction and Characterization of Vitreoscilla Hemoglobin (VHb) with Enhanced Peroxidase Activity for Efficient Degradation of Textile Dye.

    Science.gov (United States)

    Zhang, Zidong; Li, Wei; Li, Haichao; Zhang, Jing; Zhang, Yuebin; Cao, Yufeng; Ma, Jianzhang; Li, Zhengqiang

    2015-09-01

    Pollution resulting from the discharge of textile dyes into water systems has become a major global concern. Because peroxidases are known for their ability to decolorize and detoxify textile dyes, the peroxidase activity of Vitreoscilla hemoglobin (VHb) has recently been studied. It is found that VHb and variants of this enzyme show great promise for enzymatic decolorization of dyes and may play a role in achieving their successful removal from industrial wastewater. The level of VHb peroxidase activity correlates with two amino acid residues present within the conserved distal pocket, at positions 53 and 54. In this work, sitedirected mutagenesis of these residues was performed and resulted in improved VHb peroxidase activity. The double mutant, Q53H/P54C, shows the highest dye decolorization and removal efficiency, with 70% removal efficiency within 5 min. UV spectral studies of Q53H/P54C reveals a more compact structure and an altered porphyrin environment (λSoret = 413 nm) relative to that of wild-type VHb (λSoret = 406), and differential scanning calorimetry data indicate that the VHb variant protein structure is more stable. In addition, circular dichroism spectroscopic studies indicate that this variant's increased protein structural stability is due to an increase in helical structure, as deduced from the melting temperature, which is higher than 90°C. Therefore, the VHb variant Q53H/P54C shows promise as an excellent peroxidase, with excellent dye decolorization activity and a more stable structure than wild-type VHb under high-temperature conditions.

  17. Potential of dyes as draw solutions in forward osmosis for the south african textile industry

    DEFF Research Database (Denmark)

    Sheldon, Marshall; Jingxi, Estella Zandile; De Jager, Debbie

    2018-01-01

    The textile industry produces large volumes of wastewater that requires appropriate treatment before being released into the environment. Research globally has focused on advanced desalination technologies to augment the limited freshwater resources. Forward osmosis (FO) technology has gained...

  18. Performances of nano filtration (NF) and reverse osmosis (RO) in textile industry waste water treatment

    International Nuclear Information System (INIS)

    Ellouze, E.; Souissi, S.; Ben Amar, R.; Ben Salah, A.; Jrad, A.

    2009-01-01

    Textile industry process (dyeing, bleaching, printing and finishing) require a high-water consumption generating high amounts of water. Reactive dyeing of 1Kg of cotton requires about 150 Litres of water and 40g reactive dye resulting in a large volume of strongly coloured effluents. This fact in combination with the current water scarcity makes necessary textile waste water reuse. In this paper experimental results obtained from the treatment by different membranes Micro filtration (MF), Nano filtration (NF) and Reverse Osmosis (RO) of Sitex industry waste water pretreated by biological activated sludge are presented and compared. The results obtained from direct Nano filtration performed at different transmembrane pressures (8 - 1 m - 2 for a Volumetric Concentration Factor (VCF) of 4 and that the osmotic pressure π= 4Bars. A high quality of treated effluent in term of colour removal and desalination was obtained for a VCF of 2: salinity retention rate (RR) 57 pour cent and discoloration almost 100 pour cent at pressure of 12 bar. While, the permeate flux obtained using the combination MF/RO at a different pressures 25 - 1 m- 2 for a VCF of 6 indicating an important fouling. In this case, the osmotic pressure varied from 6 to 28 bars. The optimum salinity and colour retention rate (RR) were 86 pour cent and 100 pour cent respectively obtained at a VCF of 2.

  19. Decolorization of different textile dyes by Penicillium simplicissimum and toxicity evaluation after fungal treatment

    Directory of Open Access Journals (Sweden)

    L.R. Bergsten-Torralba

    2009-12-01

    Full Text Available The objective of this study was to investigate the capacity of decolorization and detoxification of the textile dyes Reactive Red 198 (RR198, Reactive Blue 214 (RB214, Reactive Blue 21 (RB21 and the mixture of the three dyes (MXD by Penicillium simplicissimum INCQS 40211. The dye RB21, a phthalocyanine, was totally decolorized in 2 days, and the others, the monoazo RR198, the diazo RB214 and MXD were decolorized after 7 days by P. simplicissimum. Initially the dye decolorization involved dye adsorption by the biomass followed by degradation. The acute toxicity after fungal treatment was monitored with the microcrustacean Daphnia pulex and measured through Effective Concentration 50% (EC50. P. simplicissimum reduced efficiently the toxicity of RB21 from moderately acutely toxic to minor acutely toxic and it also reduced the toxicity of RB214 and MXD, which remained minor acutely toxic. Nevertheless, the fungus increased the toxicity of RR198 despite of the reduction of MXD toxicity, which included this dye. Thus, P. simplicissimum INCQS 40211 was efficient to decolorize different textile dyes and the mixture of them with a significant reduction of their toxicity. In addition this investigation also demonstrated the need of toxicological assays associated to decolorization experiments.

  20. Assessment of the Dyeing Properties of the Pigments Produced by Talaromyces spp.

    OpenAIRE

    Morales-Oyervides, Lourdes; Oliveira, Jorge; Sousa-Gallagher, Maria; Méndez-Zavala, Alejandro; Montañez, Julio Cesar

    2017-01-01

    The high production yields of pigments by Talaromyces spp. and their high thermal stability have implied that industrial application interests may emerge in the food and textile industries, as they both involve subjecting the colourants to high temperatures. The present study aimed to assess the potential application of the pigments produced by Talaromyces spp. in the textile area by studying their dyeing properties. Dyeing studies were performed on wool. The dyeing process consisted of three...

  1. Management of Industrial Dye Wastes Through Adsorption By Functionalized Graft Copolymers

    International Nuclear Information System (INIS)

    El-Nagger Abdel-Wahab, M.; Hegazy El-Sayed, A.; Aly Hussein, A.; Zahran Abdel-Hamid, H.

    1999-01-01

    The sorption of Methyl Green (basic dye) by different grafted polymers with individual acrylonitrile (AN) and its binary comonomer mixture with N-vinylpyrrolidone (NVP) has been investigated. It was found that at approximately equal levels of graft yield of AN, poly(tetrafluoroethylene-hexafluoropropylene)(FEP) showed the highest dye sorption of the basic dye while the grafted low density polyethylene (LDPE) displayed the lowest dye sorption. On the other hand, the different grafted polymers with AN/NVP binary monomers which having an approximately equal total graft yield (TGY) showed a dye sorption for the same basic dye according to the order: HDPE>FEP> LDPE>PP. Nevertheless, it was found that the dye sorption values by the grafted polymers with AN/NVP mixtures are much higher than those by the grafted polymers with individual AN monomer. The dye ability of HDPE grafted with individual AN and the comonomer mixture AN/NVP towards basic and disperse dyes was utilized to investigate the synergism during radiation grafting of the comonomer mixture. Results showed that such graft materials are promising in practical use for the treatment of industrial dye wastes from textile factories

  2. Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

    International Nuclear Information System (INIS)

    Dojcinovic, Biljana P.; Roglic, Goran M.; Obradovic, Bratislav M.; Kuraica, Milorad M.; Kostic, Mirjana M.; Nesic, Jelena; Manojlovic, Dragan D.

    2011-01-01

    Highlights: → Decolorization of four reactive textile dyes using non-thermal plasma reactor. → Influence of applied energy on decolorization. → Effects of initial pH and addition of homogeneous catalysts. → Toxicity evaluation using the brine shrimp as a test organism. - Abstract: Decolorization of reactive textile dyes Reactive Black 5, Reactive Blue 52, Reactive Yellow 125 and Reactive Green 15 was studied using advanced oxidation processes (AOPs) in a non-thermal plasma reactor, based on coaxial water falling film dielectric barrier discharge (DBD). Used initial dye concentrations in the solution were 40.0 and 80.0 mg/L. The effects of different initial pH of dye solutions, and addition of homogeneous catalysts (H 2 O 2 , Fe 2+ and Cu 2+ ) on the decolorization during subsequent recirculation of dye solution through the DBD reactor, i.e. applied energy density (45-315 kJ/L) were studied. Influence of residence time was investigated over a period of 24 h. Change of pH values and effect of pH adjustments of dye solution after each recirculation on the decolorization was also tested. It was found that the initial pH of dye solutions and pH adjustments of dye solution after each recirculation did not influence the decolorization. The most effective decolorization of 97% was obtained with addition of 10 mM H 2 O 2 in a system of 80.0 mg/L Reactive Black 5 with applied energy density of 45 kJ/L, after residence time of 24 h from plasma treatment. Toxicity was evaluated using the brine shrimp Artemia salina as a test organism.

  3. Decolorization of reactive textile dyes using water falling film dielectric barrier discharge

    Energy Technology Data Exchange (ETDEWEB)

    Dojcinovic, Biljana P. [Institute of Chemistry, Technology and Metallurgy, Center of Chemistry, Studentski trg 12-16, 11000 Belgrade (Serbia); Roglic, Goran M. [Faculty of Chemistry, University of Belgrade, P.O. Box 158, 11000 Belgrade (Serbia); Obradovic, Bratislav M., E-mail: obrat@ff.bg.ac.rs [Faculty of Physics, University of Belgrade, P.O. Box 368, 11000 Belgrade (Serbia); Kuraica, Milorad M. [Faculty of Physics, University of Belgrade, P.O. Box 368, 11000 Belgrade (Serbia); Kostic, Mirjana M. [Faculty of Technology and Metallurgy, Department of Textile Engineering, Karnegijeva 4, 11000 Belgrade (Serbia); Nesic, Jelena; Manojlovic, Dragan D. [Faculty of Chemistry, University of Belgrade, P.O. Box 158, 11000 Belgrade (Serbia)

    2011-08-30

    Highlights: {yields} Decolorization of four reactive textile dyes using non-thermal plasma reactor. {yields} Influence of applied energy on decolorization. {yields} Effects of initial pH and addition of homogeneous catalysts. {yields} Toxicity evaluation using the brine shrimp as a test organism. - Abstract: Decolorization of reactive textile dyes Reactive Black 5, Reactive Blue 52, Reactive Yellow 125 and Reactive Green 15 was studied using advanced oxidation processes (AOPs) in a non-thermal plasma reactor, based on coaxial water falling film dielectric barrier discharge (DBD). Used initial dye concentrations in the solution were 40.0 and 80.0 mg/L. The effects of different initial pH of dye solutions, and addition of homogeneous catalysts (H{sub 2}O{sub 2}, Fe{sup 2+} and Cu{sup 2+}) on the decolorization during subsequent recirculation of dye solution through the DBD reactor, i.e. applied energy density (45-315 kJ/L) were studied. Influence of residence time was investigated over a period of 24 h. Change of pH values and effect of pH adjustments of dye solution after each recirculation on the decolorization was also tested. It was found that the initial pH of dye solutions and pH adjustments of dye solution after each recirculation did not influence the decolorization. The most effective decolorization of 97% was obtained with addition of 10 mM H{sub 2}O{sub 2} in a system of 80.0 mg/L Reactive Black 5 with applied energy density of 45 kJ/L, after residence time of 24 h from plasma treatment. Toxicity was evaluated using the brine shrimp Artemia salina as a test organism.

  4. ROMANIAN TEXTILE INDUSTRY AND ITS COMPETITIVE ADVANTAGE

    Directory of Open Access Journals (Sweden)

    Cristiana Ioana ŞERBĂNEL

    2014-06-01

    Full Text Available Globalization has set up a new era of international trade flows and implicitly international competition. This is best understood by analyzing the rise and fall within certain industries. The Global Value Chains (GVC framework has emerged from its theoretical origins to become a major paradigm used by several international organizations. A detailed scrutiny of GVC highlightsthe manner in which new patterns of production, international trade and employment shape prospects for development and competitiveness.The purpose of the article is to address the important role of the textile sector in national economy development. Firstly, the paper addresses the presentation of textile industry at global, European and national level. Then, it presents a competitiveness sectorial approach and the analysis of innovation in textile industry.Finally, it is presented the value chain for the textile industry in Romania.

  5. A REVIEW OF COLOR MEASURMENTS IN THE TEXTILE INDUSTRY

    Directory of Open Access Journals (Sweden)

    BRAD Raluca

    2016-05-01

    Full Text Available Color is an important factor in the evaluation of aesthetic appearance and functionality of many products, but especially of textile industry ones. In textiles production process, color can be assessed in different stages: the selection of raw materials, the incoming item tests, the preparation of dyeing ingredients, the crocking resistance testing, the color fastness and in all stages, the quality control. Color evaluation can be done visually or using specialized test instruments such as colorimeters or spectrometers, therefore a high accuracy of measurements must be achieved. Standards describe different procedures and testing techniques depending on the product type and the quality level required by the customer. The paper presents the most common systems of color representation and communication, measurement methods and techniques, and standards that define them. The CIE color representation systems have been reviewed, together with the measurement methods offering the repeatability of the process. Most of the standards have been issued in US, but several European and International are stating the color assessment process. We have also conducted a review of latest published papers in the topic of color measurement, comparison and match. Several image processing applications algorithms offers new opportunities for computer assisted evaluation and control of textile color properties.

  6. An Improved Method for Removal of Azo Dye Orange II from Textile Effluent Using Albumin as Sorbent

    Directory of Open Access Journals (Sweden)

    Tadashi Ohashi

    2012-11-01

    Full Text Available Azo dyes are generally resistant to biodegradation due to their complex structures. Acid orange II is one of the most widely used dyes in the textile industry. The influence of bovine serum albumin (BSA in different concentrations, pH, and time of contact on Orange II was investigated using kinetics and adsorption-isotherm experiments. The results showed that the maximum colour removed from dye/albumin was 99.50% and that a stable dye-protein complex had been formed at pH 3.5 and in a proportion of 1:3 (v/v, respectively. The synthetic effluent did not show toxicity to the microcrustacean Artemia salina, and showed a CL50 equal to 97 µg/mL to azo dye orange II. Additionally, the methodology was effective in removing the maximum of orange II using BSA by adsorption at pH 3.5 which mainly attracted ions to the azo dye during the adsorption process. This suggests that this form of treatment is economical and easy to use which potentially could lead to bovine serum albumin being used as a sorbent for azo dyes.

  7. The Organization of the Mycenaean Textile Industry

    DEFF Research Database (Denmark)

    Nosch, Marie-Louise Bech

    Analysis of thewritten documentation for the organiztion of the Mycenaean textile industri at Pylos, Knossos, Mycenae and Thebes......Analysis of thewritten documentation for the organiztion of the Mycenaean textile industri at Pylos, Knossos, Mycenae and Thebes...

  8. Decolorisation of Basic Textile Dye from Aqueous Solutions using a Biosorbent derived from Thespesia populnea used Biomass

    Science.gov (United States)

    Gunturu, Bhargavi; Rao Palukuri, Nageswara; Sahadevan, Renganathan

    2018-03-01

    In the present study, the efficiency of a biosorbent derived from seeds of Thespesia populnea was investigated towards the removal of basic textile dye Methylene Blue from an aqueous solution. Adsorption studies were carried out in batch system. Influence of experimental parameters such as adsorbent dosage (0.1g/L-0.3g/L), PH (2-10) and initial dye concentration (50-130mg/L) on adsorption of dye onto biosorbent was investigated. Maximum uptake of dye was observed with 0.1g/L adsorbent dosage at PH 8.0. Equilibrium uptake of methylene blue dye by the adsorbent was analyzed by Langmuir and Freundlich isotherm models. The data fitted best with Freundlich model, suggesting that adsorption of the dye was by multilayer model on the surface of the adsorbent. Experimental results obtained support that the biosorbent used in the present study can be a suitable low cost alternate for the removal of basic textile dyes.

  9. Degradation of textile dyes using immobilized lignin peroxidase-like metalloporphines under mild experimental conditions

    Directory of Open Access Journals (Sweden)

    Zucca Paolo

    2012-12-01

    Full Text Available Abstract Background Synthetic dyes represent a broad and heterogeneous class of durable pollutants, that are released in large amounts by the textile industry. The ability of two immobilized metalloporphines (structurally emulating the ligninolytic peroxidases to bleach six chosen dyes (alizarin red S, phenosafranine, xylenol orange, methylene blue, methyl green, and methyl orange was compared to enzymatic catalysts. To achieve a green and sustainable process, very mild conditions were chosen. Results IPS/MnTSPP was the most promising biomimetic catalyst as it was able to effectively and quickly bleach all tested dyes. Biomimetic catalysis was fully characterized: maximum activity was centered at neutral pH, in the absence of any organic solvent, using hydrogen peroxide as the oxidant. The immobilized metalloporphine kept a large part of its activity during multi-cycle use; however, well-known redox mediators were not able to increase its catalytic activity. IPS/MnTSPP was also more promising for use in industrial applications than its enzymatic counterparts (lignin peroxidase, laccase, manganese peroxidase, and horseradish peroxidase. Conclusions On the whole, the conditions were very mild (standard pressure, room temperature and neutral pH, using no organic solvents, and the most environmental-friendly oxidant and a significant bleaching and partial mineralization of the dyes was achieved in approximately 1 h. Therefore, the process was consistent with large-scale applications. The biomimetic catalyst also had more promising features than the enzymatic catalysts.

  10. Anaerobic azo dye reduction

    NARCIS (Netherlands)

    Zee, van der F.P.

    2002-01-01

    Azo dyes, aromatic moieties linked together by azo (-N=N-) chromophores, represent the largest class of dyes used in textile-processing and other industries. The release of these compounds into the environment is undesirable, not only because of their colour, but also

  11. Methods for waste waters treatment in textile industry

    OpenAIRE

    Srebrenkoska, Vineta; Zhezhova, Silvana; Risteski, Sanja; Golomeova, Saska

    2014-01-01

    The processes of production of textiles or wet treatments and finishing processes of textile materials are huge consumers of water with high quality. As a result of these various processes, considerable amounts of polluted water are released. This paper puts emphasis on the problem of environmental protection against waste waters generated by textile industry. The methods of pretreatment or purification of waste waters in the textile industry can be: Primary (screening, sedimentation, homo...

  12. Anaerobic treatment of textile dyeing wastewater.

    Science.gov (United States)

    Stern, S R; Szpyrkowicz, L; Rodighiero, I

    2003-01-01

    Aerobic treatment commonly applied to textile wastewater results in good or even excellent removal of organic load. This is not, however, accompanied by an equally good removal of colour. Traditional or advanced chemical methods of decolourisation are costly and not always reliable in justifying an interest in microbial decolourisation. Among several processes anaerobic methods seem most promising. In this paper, the results of a study conducted in two pilot-scale plants comprising anaerobic fixed bed biofilters of 15 L and 5 m3 operating as continuous reactors are presented, along with evaluation of the microbial kinetics. As is shown the process proved efficient in a long-term study with no stability problems of the biofilters. The six-month performance of the pilot plant confirmed also that the pre-treated wastewater could be applied in the operation of dyeing. For the majority of the colours applied in the factory no problems were encountered when the dyeing baths were prepared by substituting 90% of fresh water to the effluent treated by a sequence of activated sludge processes: anaerobic-aerobic.

  13. WATERLESS DYEING [REVIEW

    Directory of Open Access Journals (Sweden)

    DEVRENT Nalan

    2015-05-01

    Full Text Available The textile industry is believed to be one of the biggest consumers of water. Water consumption and exhaustion in dyeing textile materials in conventional methods is an important environmental problem. The cost of waste water treatment will cause a prominent problem in the future as it does today. Increasing consideration of ecologic consequences of industrial processes as well as legislation enforcing the avoidance of environmental problems have caused a reorientation of thinking and promoted projects for replacement of conventional technologies. One of these new technologies is dyeing in supercritical fluids. Dyeing with supercritical carbon dioxide is a favourable concept considering the value of water as a natural resource and the cost of waste water treatment. This dyeing method offers many advantages over conventional aqueous dyeing: During this dyeing process no water is used, therefore there is no waste water problem, no other chemicals are required; the carbon dioxide can be recycled; the dystuff which is not adsorbed on the substrate can be collected and reused; The necessary energy consumption in this process is relatively lower than is needed to heat water in conventional methods of dyeing. Due to unnecessary of drying process, it helps to save both energy and time; and dyeing cycle is shorter compared with traditional methods. In addition carbon dioxide is non-toxic and non-flammable. Supercritical fluid, supercritical dyeing, disperse dyestuffs, solid-fluid equilibrium

  14. Design Management in the Textile Industry - A Network Perspective

    DEFF Research Database (Denmark)

    Christensen, Poul Rind; Bang, Anne Louise

    In this paper we explore textile design activities and textile design management from an industrial network perspective. The textile industry is probably one of the most globalized manufacturing industries in the world and thus one of the most dispersed industries on the globe. Most studies on de...... management in order to maintain the relationships in their network of customers and suppliers....

  15. The oxidative response and viable reaction mechanism of the textile dyes by fenton reagent

    International Nuclear Information System (INIS)

    Masooda, Q.; Hijira, T.; Sitara, M.; Sehar, M.; Sundus, A.; Mohsin, A.

    2017-01-01

    The mechanism of the degradation of the Reactive Red 239 and Reactive Blue 19 by Fenton reagent was studied by advanced oxidation process in aqueous medium. The spectroscopic technique was adopted for the measurements of dye concentration. Moreover they were determined at 540 nm and 590 nm, respectively. Kinetics of the reaction was studied under the effect of concentration of reactive dyes, concentration of oxidant were followed under pseudo first order condition and found to influence the catalytic mechanism. The pH of the medium, vibrant response of several cations and anions and influence of ionic strength on the reaction kinetics were also monitored. Physical evidences for the degradation and mineralization of the dyes were evaluated by Lime water test, Ring Test and TLC test also confirmed the degradation of dye. Inhibitory effects of dyes were observed by CO3-, HCO3-, HPO42-, Cl-, I- Al3+ and Na+. Thermodynamic activation parameters in the oxidation reaction were studied and mode of mechanism was suggested on the basic of these parameters. This study explored the safe and eco friendly degradation of the textile dyes under Pseudo first order rate constant. It was observed that Fenton assisted degradation of the dyes under controlled conditions was found to be favorable for the treatment of textile wastewater. Moreover compared to other chemical methods it is effective and harmless to the environment. (author)

  16. Assessment of the Dyeing Properties of the Pigments Produced by Talaromyces spp.

    Science.gov (United States)

    Morales-Oyervides, Lourdes; Oliveira, Jorge; Sousa-Gallagher, Maria; Méndez-Zavala, Alejandro; Montañez, Julio Cesar

    2017-07-05

    The high production yields of pigments by Talaromyces spp. and their high thermal stability have implied that industrial application interests may emerge in the food and textile industries, as they both involve subjecting the colourants to high temperatures. The present study aimed to assess the potential application of the pigments produced by Talaromyces spp. in the textile area by studying their dyeing properties. Dyeing studies were performed on wool. The dyeing process consisted of three stages: scouring, mordanting, and dyeing. Two different mordants (alum, A; ferric chloride, F) were tested at different concentrations on fabric weight (A: 5, 10, 15%; F: 10, 20, 30%). The mordanting process had a significant effect on the final colour of the dyed fabrics obtained. The values of dyeing rate constant ( k ), half-time of dyeing ( t 1/2 ), and sorption kinetics behaviour were evaluated and discussed. The obtained results showed that pigments produced by Talaromyces spp. could serve as a source for the natural dyeing of wool textiles.

  17. Assessment of the Dyeing Properties of the Pigments Produced by Talaromyces spp.

    Science.gov (United States)

    Oliveira, Jorge; Sousa-Gallagher, Maria; Montañez, Julio Cesar

    2017-01-01

    The high production yields of pigments by Talaromyces spp. and their high thermal stability have implied that industrial application interests may emerge in the food and textile industries, as they both involve subjecting the colourants to high temperatures. The present study aimed to assess the potential application of the pigments produced by Talaromyces spp. in the textile area by studying their dyeing properties. Dyeing studies were performed on wool. The dyeing process consisted of three stages: scouring, mordanting, and dyeing. Two different mordants (alum, A; ferric chloride, F) were tested at different concentrations on fabric weight (A: 5, 10, 15%; F: 10, 20, 30%). The mordanting process had a significant effect on the final colour of the dyed fabrics obtained. The values of dyeing rate constant (k), half-time of dyeing (t1/2), and sorption kinetics behaviour were evaluated and discussed. The obtained results showed that pigments produced by Talaromyces spp. could serve as a source for the natural dyeing of wool textiles. PMID:29371555

  18. Anaerobic azo dye reduction

    OpenAIRE

    Zee, van der, F.P.

    2002-01-01

    Azo dyes, aromatic moieties linked together by azo (-N=N-) chromophores, represent the largest class of dyes used in textile-processing and other industries. The release of these compounds into the environment is undesirable, not only because of their colour, but also because many azo dyes and their breakdown products are toxic and/or mutagenic to life. To remove azo dyes from wastewater, a biological treatment strategy based on anaerobic reduction of the azo dye...

  19. Blue and grey water footprint of textile industry in China.

    Science.gov (United States)

    Wang, Laili; Ding, Xuemei; Wu, Xiongying

    2013-01-01

    Water footprint (WF) is a newly developed idea that indicates impacts of freshwater appropriation and wastewater discharge. The textile industry is one of the oldest, longest and most complicated industrial chains in the world's manufacturing industries. However, the textile industry is also water intensive. In this paper, we applied a bottom-up approach to estimate the direct blue water footprint (WFdir,blue) and direct grey water footprint (WFdir,grey) of China's textile industry at sector level based on WF methodology. The results showed that WFdir,blue of China's textile industry had an increasing trend from 2001 to 2010. The annual WFdir,blue surpassed 0.92 Gm(3)/yr (giga cubic meter a year) since 2004 and rose to peak value of 1.09 Gm(3)/yr in 2007. The original and residuary WFdir,grey (both were calculated based on the concentration of chemical oxygen demand (CODCr)) of China's textile industry had a similar variation trend with that of WFdir,blue. Among the three sub-sectors of China's textile industry, the manufacture of textiles sector's annual WFdir,blue and WFdir,grey were much larger than those of the manufacture of textile wearing apparel, footware and caps sector and the manufacture of chemical fibers sector. The intensities of WFdir,blue and WF(res)dir,grey of China's textile industry were year by year decreasing through the efforts of issuing restriction policies on freshwater use and wastewater generation and discharge, and popularization of water saving and wastewater treatment technologies.

  20. Toxicity evaluation of textile effluents and role of native soil bacterium in biodegradation of a textile dye.

    Science.gov (United States)

    Khan, Sana; Malik, Abdul

    2018-02-01

    Water pollution caused by the discharge of hazardous textile effluents is a serious environmental problem worldwide. In order to assess the pollution level of the textile effluents, various physico-chemical parameters were analyzed in the textile wastewater and agricultural soil irrigated with the wastewater (contaminated soil) using atomic absorption spectrophotometer and gas chromatography-mass spectrometry (GC-MS) analysis that demonstrated the presence of several toxic heavy metals (Ni, Cu, Cr, Pb, Cd, and Zn) and a large number of organic compounds. Further, in order to get a comprehensive idea about the toxicity exerted by the textile effluent, mung bean seed germination test was performed that indicated the reduction in percent seed germination and radicle-plumule growth. The culturable microbial populations were also enumerated and found to be significantly lower in the wastewater and contaminated soil than the ground water irrigated soil, thus indicating the biotic homogenization of indigenous microflora. Therefore, the study was aimed to develop a cost effective and ecofriendly method of textile waste treatment using native soil bacterium, identified as Arthrobacter soli BS5 by 16S rDNA sequencing that showed remarkable ability to degrade a textile dye reactive black 5 with maximum degradation of 98% at 37 °C and pH in the range of 5-9 after 120 h of incubation.

  1. Role of Voluntary Employee Turnover in Textile Industry of Pakistan

    OpenAIRE

    Nawaz, Yasir; Rahman, Tanzil ur; Siraji, Md. Naeemullah

    2009-01-01

    The role of voluntary employee turnover (VET) in textile industry has significance in this era over the globe. Textile industry is labour intensive with similar to agriculture industry in Pakistan and it has excessive VET as compared to other industries. Pakistan’s textile products are high quality and much exploit in the world. It contributes in economic growth with 8.5% share in GDP. This industry mainly based on domestic labour and major portion of cost includes in the textile garment prod...

  2. Valorization of Waste Obtained from Oil Extraction in Moringa Oleifera Seeds: Coagulation of Reactive Dyes in Textile Effluents.

    Science.gov (United States)

    Vilaseca, Mercè; López-Grimau, Víctor; Gutiérrez-Bouzán, Carmen

    2014-09-12

    Moringa oleifera seeds contain about 40% of highly valued oil due to its wide range of applications, from nutritional issues to cosmetics or biodiesel production. The extraction of Moringa oil generates a waste (65%-75% of seeds weight) which contains a water soluble protein able to be used either in drinking water clarification or wastewater treatment. In this paper, the waste of Moringa oleifera extraction was used as coagulant to remove five reactive dyes from synthetic textile effluents. This waste constitutes a natural coagulant which was demonstrated to be effective for the treatment of industrial reactive dyestuff effluents, characterized by alkaline pH, high NaCl content and hydrolyzed dyes. The coagulation yield increased at high NaCl concentration, whereas the pH did not show any significant effect on dye removal. Moringa oleifera showed better results for dye removal than the conventional treatment of coagulation-flocculation with FeCl₃ and polyelectrolyte. Treated water can be reused in new dyeing processes of cotton fabrics with high quality results.

  3. Valorization of Waste Obtained from Oil Extraction in Moringa Oleifera Seeds: Coagulation of Reactive Dyes in Textile Effluents

    Directory of Open Access Journals (Sweden)

    Mercè Vilaseca

    2014-09-01

    Full Text Available Moringa oleifera seeds contain about 40% of highly valued oil due to its wide range of applications, from nutritional issues to cosmetics or biodiesel production. The extraction of Moringa oil generates a waste (65%–75% of seeds weight which contains a water soluble protein able to be used either in drinking water clarification or wastewater treatment. In this paper, the waste of Moringa oleifera extraction was used as coagulant to remove five reactive dyes from synthetic textile effluents. This waste constitutes a natural coagulant which was demonstrated to be effective for the treatment of industrial reactive dyestuff effluents, characterized by alkaline pH, high NaCl content and hydrolyzed dyes. The coagulation yield increased at high NaCl concentration, whereas the pH did not show any significant effect on dye removal. Moringa oleifera showed better results for dye removal than the conventional treatment of coagulation-flocculation with FeCl3 and polyelectrolyte. Treated water can be reused in new dyeing processes of cotton fabrics with high quality results.

  4. Mediator-assisted decolorization and detoxification of textile dyes/dye mixture by Cyathus bulleri laccase.

    Science.gov (United States)

    Chhabra, Meenu; Mishra, Saroj; Sreekrishnan, T R

    2008-12-01

    Laccase from basidiomycete fungus Cyathus bulleri was evaluated for its ability to decolorize a number of reactive and acidic dyes in the presence of natural and synthetic mediators. The extent of decolorization was monitored at different mediator/dye concentrations and incubation time. Among the synthetic mediators, 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) was effective at low mediator/dye ratios and resulted in 80-95% decolorization at rates that varied from 226 +/- 4 nmol min(-1) mg(-1) for Reactive Orange 1 to 1,333 +/- 15 nmol min(-1) mg(-1) for Reactive Red 198. Other synthetic mediators like 1-hydroxybenzotriazole and violuric acid showed both concentration- and time-dependent increases in percent decolorization. Natural mediators like vanillin, on the other hand, were found to be less effective on all the dyes except Reactive Orange 1. Computed rates of decolorization were about twofold lower than that with ABTS. The laccase-ABTS system also led to nearly 80% decolorization for the simulated dye mixture. No clear correlation between laccase activity on the mediator and its ability to decolorize dyes was found, but pH had a significant effect: Optimum pH for decolorization coincided with the optimum pH for mediator oxidation. The treated samples were also evaluated for toxicity in model microbial systems. The laccase-mediator system appears promising for treatment of textile wastewaters.

  5. Patch testing to a textile dye mix by the international contact dermatitis research group.

    Science.gov (United States)

    Isaksson, Marléne; Ale, Iris; Andersen, Klaus E; Diepgen, Thomas; Goh, Chee-Leok; Goossens R, An; Jerajani, Hemangi; Maibach, Howard I; Sasseville, Denis; Bruze, Magnus

    2015-01-01

    Disperse dyes are well-known contact sensitizers not included in the majority of commercially available baseline series. To investigate the outcome of patch testing to a textile dye mix (TDM) consisting of 8 disperse dyes. Two thousand four hundred ninety-three consecutive dermatitis patients in 9 dermatology clinics were patch tested with a TDM 6.6%, consisting of Disperse (D) Blue 35, D Yellow 3, D Orange 1 and 3, D Red 1 and 17, all 1.0% each, and D Blue 106 and D Blue 124, each 0.3%. 90 reacted positively to the TDM. About 92.2% of the patients allergic to the TDM were also tested with the 8 separate dyes. Contact allergy to TDM was found in 3.6% (1.3-18.2) Simultaneous reactivity to p-phenylenediamine was found in 61.1% of the TDM-positive patients. Contact allergy to TDM and not to other p-amino-substituted sensitizers was diagnosed in 1.2%. The most frequent dye allergen in the TDM-positive patients was D Orange 3. Over 30% of the TDM allergic patients had been missed if only the international baseline series was tested. Contact allergy to TDM could explain or contribute to dermatitis in over 20% of the patients. Textile dye mix should be considered for inclusion into the international baseline series.

  6. Adsorption of a textile dye from aqueous solutions by carbon nanotubes

    Energy Technology Data Exchange (ETDEWEB)

    Machado, Fernando M.; Bergmann, Carlos P., E-mail: fernando.machado@hotmail.com.br [Universidade Federal do Rio Grande do Sul (UFRS), Porto Alegre, RS (Brazil). Dept. de Materiais; Lima, Eder C.; Adebayo, Matthew A. [Universidade Federal do Rio Grande do Sul (UFRS), Porto Alegre, RS (Brazil). Inst. de Quimica; Fagan, Solange B. [Centro Universitario Franciscano (UNIFRA), Santa Maria, RS (Brazil). Area de Ciencias Tecnologicas

    2014-08-15

    Multi-walled and single-walled carbon nanotubes were used as adsorbents for the removal of Reactive Blue 4 textile dye from aqueous solutions. The adsorbents were characterised using Raman spectroscopy, N{sub 2} adsorption/desorption isotherms and scanning and transmission electron microscopy. The effects of pH, agitation time and temperature on adsorption capacity were studied. In the acidic pH region, the adsorption of the dye was favourable using both adsorbents. The contact time to obtain equilibrium isotherms at 298-323 K was fixed at 4 hours for both adsorbents. For Reactive Blue 4 dye, Liu isotherm model gave the best fit for the equilibrium data. The maximum sorption capacity for adsorption of the dye occurred at 323 K, attaining values of 502.5 and 567.7 mg g{sup -1} for MWCNT and SWCNT, respectively. (author)

  7. A model of Occupational Safety and Health Management System (OSHMS) for promoting and controlling health and safety in textile industry.

    Science.gov (United States)

    Manimaran, S; Rajalakshmi, R; Bhagyalakshmi, K

    2015-01-01

    The development of Occupational Safety and Health Management System in textile industry will rejuvenate the workers and energize the economy as a whole. In India, especially in Tamil Nadu, approximately 1371 textile business is running with the help of 38,461 workers under Ginning, Spinning, Weaving, Garment and Dyeing sectors. Textile industry of contributes to the growth of Indian economy but it fails to foster education and health as key components of human development and help new democracies. The present work attempts to measure and develop OSHMS which reduce the hazards and risk involved in textile industry. Among all other industries textile industry is affected by enormous hazards and risk because of negligence by management and Government. It is evident that managements are not abiding by law when an accident has occurred. Managements are easily deceiving workers and least bothered about the Quality of Work Life (QWL). A detailed analysis of factors promoting safety and health to the workers has been done by performing confirmatory factor analysis, evaluating Risk Priority Number and the framework of OHMS has been conceptualized using Structural Equation Model. The data have been collected using questionnaire and interview method. The study finds occupation health for worker in Textile industry is affected not only by safety measure but also by technology and management. The work shows that difficulty in identifying the cause and effect of hazards, the influence of management in controlling and promoting OSHMS under various dimensions. One startling fact is existence of very low and insignificance correlation between health factors and outcome.

  8. Patch Testing To a Textile Dye Mix by the International Contact Dermatitis Research Group

    DEFF Research Database (Denmark)

    Isaksson, Marléne; Ale, Iris; Andersen, Klaus E

    2015-01-01

    .2%. The most frequent dye allergen in the TDM-positive patients was D Orange 3. CONCLUSIONS: Over 30% of the TDM allergic patients had been missed if only the international baseline series was tested. Contact allergy to TDM could explain or contribute to dermatitis in over 20% of the patients. Textile dye mix...... should be considered for inclusion into the international baseline series....

  9. Decolorization and removal of cod and bodfrom raw and biotreated textile dye bath effluent through advanced oxidation processes (AOPS

    Directory of Open Access Journals (Sweden)

    A. Muhammad

    2008-09-01

    Full Text Available In this paper, a comparative study of the treatment of raw and biotreated (upflow anaerobic sludge blanket, UASB textile dye bath effluent using advanced oxidation processes (AOPs is presented. The AOPs applied on raw and biotreated textile dye bath effluent, after characterization in terms of COD, colour, BOD and pH, were ozone, UV, UV/H2O2 and photo-Fenton. The decolorization of raw dye bath effluent was 58% in the case of ozonation. However it was 98% in the case of biotreated dye bath effluent when exposed to UV/H2O2. It is, therefore, suggested that a combination of biotreatment and AOPs be adopted to decolorize dye bath effluent in order to make the process more viable and effective. Biodegradability was also improved by applying AOPs after biotreatment of dye bath effluent.

  10. Decolorization of synthetic brilliant green carpet industry dye through fungal co-culture technology.

    Science.gov (United States)

    Kumari, Simpal; Naraian, Ram

    2016-09-15

    Aim of the present study was to evaluate the efficiency of fungal co-culture for the decolorization of synthetic brilliant green carpet industry dye. For this purpose two lignocellulolytic fungi Pleurotus florida (PF) and Rhizoctonia solani (RS) were employed. The study includes determination of enzyme profiles (laccase and peroxidase), dye decolorization efficiency of co-culture and crude enzyme extracts. Both fungi produced laccase and Mn peroxidase and successfully decolorized solutions of different concentrations (2.0, 4.0, 6.0, & 8.0(w/v) of dye. The co-culture resulted highest 98.54% dye decolorization at 2% (w/v) of dye as compared to monocultures (82.12% with PF and 68.89% with RS) during 12 days of submerged fermentation. The lower levels of dyes were rapidly decolorized, while higher levels in slow order as 87.67% decolorization of 8% dye. The promising achievement of the study was remarkable decolorizing efficiency of co-culture over monocultures. The direct treatment of the mono and co-culture enzyme extracts to dye also influenced remarkable. The highest enzymatic decolorization was through combined (PF and RS) extracts, while lesser by monoculture extracts. Based on the observations and potentiality of co-culture technology; further it can be exploited for the bioremediation of areas contaminated with hazardous environmental pollutants including textile and other industry effluents. Copyright © 2016 Elsevier Ltd. All rights reserved.

  11. Application of enzymes in the textile industry: a review

    OpenAIRE

    Mojsov, Kiro

    2011-01-01

    The use of enzymes in textile industry is one of the most rapidly growing field in industrial enzymology. The enzymes used in the textile field are amylases, catalase, and laccase which are used to removing the starch, degrading excess hydrogen peroxide, bleaching textiles and degrading lignin. The use of enzymes in the textile chemical processing is rapidly gaining globally recognition because of their non-toxic and eco-friendly characteristics with the increasinly important requirements for...

  12. Removal of Reactive-dyes from Textile Plant Effluents Using Polyvinyl Alcohol-coated Active Carbon obtained from Sesame Seeds

    Directory of Open Access Journals (Sweden)

    Sheida Moradi- Nasab

    2016-09-01

    Full Text Available In this study, the adsorption of active carbon derived from waste sesame seeds coated with polyvinyl alcohol (AC/PVA was investigated for removing red 198 and blue 19 reactive dyes from textile effluents. The batch process was carried out to identify such parameters as pH, adsorbent dose, contact time, and initial dye concentration involved in the dye removal adsorption capacity of AC/PVA. Also, batch kinetic and isotherm experiments were conducted. Results indicated that the maximum dye removal was obtained in an acidic pH over 90 min of contact time and that adsorption rates followed the pseudo-second-order kinetics. Blue and red dye concentrations were determined using the spectrophotometric method at 590 and 517 nm, respectively. It may be concluded that AC/PVA is capable of removing blue and red reactive dyes and can be used as an efficient, cheap, and accessible adsorbent for treating textile effluents.

  13. Determinants of Knowledge and Safety Practices of Occupational Hazards of Textile Dye Workers in Sokoto, Nigeria: A Descriptive Analytic Study.

    Science.gov (United States)

    Okafoagu, Nneka Christina; Oche, Mansur; Awosan, Kehinde Joseph; Abdulmulmuni, Hashim Bala; Gana, Godwin Jiya; Ango, Jessica Timane; Raji, Ismail

    2017-06-23

    Textile dye workers are subject to occupational hazards on a daily basis due to exposure to precarious conditions in the workplace. This study aimed to assess the knowledge, attitude and safety practices and its determinants among textile dye workers in Sokoto metropolis, Nigeria. This is a descriptive cross-sectional study conducted among 200 textile dye workers and the respondents were selected by multi stage sampling technique. Data was collected using an interviewer administered questionnaire. Data was processed using SPSS IBM version 20 and analyzed using descriptive and inferential statistics. Majority of the respondents (74.0%) had good knowledge of workplace hazards; (81.0%) had positive attitude and only 20% observed all the safety practices. Formal education (P=0.047); working less than 5 days a week (P=0.001) and permanent employment (P=0.013) were found to be determinants of respondents' knowledge and attitude towards workplace hazards. Although the respondents had good knowledge and positive attitude, their lack of observance of safety practices brings to fore the need for direct safety instruction and training and retraining of textile dye workers on workplace hazards and safety practices.

  14. Fashion marketing in textile and clothing industry

    Directory of Open Access Journals (Sweden)

    Alica Grilec Kaurić

    2009-12-01

    Full Text Available Fashion marketing explores connection between fashion design and marketing including development, promotion, sales and price aspects of fashion industry. Successful fashion marketing managers are aware that the most important fashion marketing elements are customer trend identification, building strong brands and creating positive image of the producers. This paper presents the findings of a research conducted for the purpose of identifying trends in marketing sector in textile and clothing industry in Croatia. The research was conducted through personal interviews with marketing and company managers in Croatia. The research identified that marketing is insufficiently implemented in Croatian textile and clothing industry, despite growing brand management importance. However, because of lack in marketing knowledge and bad brand management, development of fashion brand is the most critical factor in successful business activity in textile and clothing industry.

  15. Enzyme-based solutions for textile processing and dye contaminant biodegradation-a review.

    Science.gov (United States)

    Chatha, Shahzad Ali Shahid; Asgher, Muhammad; Iqbal, Hafiz M N

    2017-06-01

    The textile industry, as recognized conformist and stake industry in the world's economy, is facing serious environmental challenges. In numerous industries, in practice, various chemical-based processes from initial sizing to final washing are fascinating harsh environment concerns. Some of these chemicals are corrosive to equipment and cause serious damage itself. Therefore, in the twenty-first century, chemical and allied industries quest a paradigm transition from traditional chemical-based concepts to a greener, sustainable, and environmentally friendlier catalytic alternative, both at the laboratory and industrial scales. Bio-based catalysis offers numerous benefits in the context of biotechnological industry and environmental applications. In recent years, bio-based processing has received particular interest among the scientist for inter- and multi-disciplinary investigations in the areas of natural and engineering sciences for the application in biotechnology sector at large and textile industries in particular. Different enzymatic processes such as chemical substitution have been developed or in the process of development for various textile wet processes. In this context, the present review article summarizes current developments and highlights those areas where environment-friendly enzymatic textile processing might play an increasingly important role in the textile industry. In the first part of the review, a special focus has been given to a comparative discussion of the chemical-based "classical/conventional" treatments and the modern enzyme-based treatment processes. Some relevant information is also reported to identify the major research gaps to be worked out in future.

  16. Molecular structure-adsorption study on current textile dyes.

    Science.gov (United States)

    Örücü, E; Tugcu, G; Saçan, M T

    2014-01-01

    This study was performed to investigate the adsorption of a diverse set of textile dyes onto granulated activated carbon (GAC). The adsorption experiments were carried out in a batch system. The Langmuir and Freundlich isotherm models were applied to experimental data and the isotherm constants were calculated for 33 anthraquinone and azo dyes. The adsorption equilibrium data fitted more adequately to the Langmuir isotherm model than the Freundlich isotherm model. Added to a qualitative analysis of experimental results, multiple linear regression (MLR), support vector regression (SVR) and back propagation neural network (BPNN) methods were used to develop quantitative structure-property relationship (QSPR) models with the novel adsorption data. The data were divided randomly into training and test sets. The predictive ability of all models was evaluated using the test set. Descriptors were selected with a genetic algorithm (GA) using QSARINS software. Results related to QSPR models on the adsorption capacity of GAC showed that molecular structure of dyes was represented by ionization potential based on two-dimensional topological distances, chromophoric features and a property filter index. Comparison of the performance of the models demonstrated the superiority of the BPNN over GA-MLR and SVR models.

  17. Auxiliaries for the textile industry and environmental protection

    Directory of Open Access Journals (Sweden)

    Sanda VISAN

    2010-06-01

    Full Text Available The textile industry is an industrial field that affects the environment, from the plant growth until the production process. The obtaining of environmental licence for Romanian companies that produce textile products is related to elaboration and implementation of a modern system for an environmental management, that consist in utilization of ecological technologies for finishing, in diminution the water and energy consumption, cleaning of waste waters, reutilization of cleaned waters, sustainable management of wastes. In this study, the surfactant categories used in the textile industry that fulfil the conditions of environment protection, are presented. Some exemplifications were made involving the existing surfactants in Romanian textile industry, obtained from both domestic and external production. Also, some recommendation are suggested regarding the utilization of surfactants manufactured from either vegetal oils or chemical/petrochemical wastes, with similar properties as those from import having decreased prices an that affect as small as possible the environment.

  18. Reuse of Textile Dyeing Effluents Treated with Coupled Nanofiltration and Electrochemical Processes

    Directory of Open Access Journals (Sweden)

    Valentina Buscio

    2016-06-01

    Full Text Available The reactive dye Cibacron Yellow S-3R was selected to evaluate the feasibility of combining nanofiltration membranes with electrochemical processes to treat textile wastewater. Synthetic dyeing effluents were treated by means of two nanofiltration membranes, Hydracore10 and Hydracore50. Up to 98% of dye removal was achieved. The influence of salt concentration and pH on membrane treatment was studied. The best dye removal yield was achieved at pH 3 in the presence of 60 g/L of NaCl. After the membrane filtration, the concentrate containing high dye concentration was treated by means of an electrochemical process at three different current densities: 33, 83, and 166 mA/cm2. Results showed a lineal relationship between treatment time and applied current density. Both permeates and electrochemically-decoloured effluents were reused in new dyeing processes (100% of permeate and 70% of decoloured concentrates. Dyed fabrics were evaluated with respect to original dyeing. Colour differences were found to be into the acceptance range.

  19. Electroadsorption of acilan blau dye from textile effluents by using activated carbon-perlite mixtures.

    Science.gov (United States)

    Koparal, A S; Yavuz, Y; Bakir Ogütveren, U

    2002-01-01

    The feasibility of the removal of dye stuffs from textile effluents by electroadsorption has been investigated. An activated carbon-perlite mixture with a ratio of 8:1 for bipolarity has been used as the adsorbent. Conventional adsorption experiments have also been conducted for comparison. A bipolar trickle reactor has been used in the electroadsorption experiments. The model wastewater has been prepared by using acilan blau dye. Initial dye concentration, bed height between the electrodes, applied potential, flowrate, and the supporting electrolyte concentration have been examined as the parameters affecting the removal efficiency. A local textile plant effluent has been treated in the optimum values of these parameters obtained from the experimental studies. Adsorption kinetics and the amount of adsorbent required to reach the maximum removal efficiency have also been investigated and mass-transfer coefficients have been calculated for adsorption and electroadsorption. The results showed that a removal efficiency of up to 100% can be achieved with energy consumption values of 1.58 kWh/m3 of wastewater treated. However, energy consumption decreases to 0.09 kWh/m3 if an exit dye concentration of 4.65 mg/L is accepted. It can be concluded from this work that this method combines all of the advantages of the activated-carbon adsorption and electrolytic methods for the removal of dyes from wastewater.

  20. Enzymatic processes in the textile industry; Enzimologia nel tessile. Biopreparazione del cotone ed uso degli enzimi nell'industria tessile. 1. Parte

    Energy Technology Data Exchange (ETDEWEB)

    Galante, Y. [Lamberti SpA, Albizzate, VA (Italy)

    2001-04-01

    In the last years, the textile industry has become one of the main field of industrial applications of enzymes. From traditional desizing to enzymatic stone washing to bio polishing of cellulosic fibers to protease treatment of silk and wool to catalase utilization after bleaching, textile processing has evolved into a field of primary importance for modern enzymology. A number of new recombinant and/or bioengineered enzymes (e.g., cellulases) have been recently introduced into textile processing and finishing dye houses. [Italian] Nel presente articolo, suddiviso in due parti, viene presentato un approccio enzimatico integrato nella filiera tessile, in cui dimostriamo che e' possibile e conveniente applicare in un singolo processo differenti enzimi (ad esempio, amilasi, pectinasi, catalasi, cellulasi) in successione od in contemporaneo, in combinazione con ausiliari chimici facilmente biodegradabili.

  1. Health and safety aspects of textile workers from Solapur (India textile industries

    Directory of Open Access Journals (Sweden)

    Rahul B Hiremath

    2014-12-01

    Full Text Available Introduction: Textile sector in India plays an important role in the country's economy, providing employment to a significant population in rural and urban areas. Objectives: This paper focuses on health and safety aspects of textile workers in Solapur City (one of the key textile cluster in the state of Maharashtra, India. Methodology: A sample of 180 workers from the identified textile industries of Solapur city were assessed for their general physique, muscle tone, lung condition, and eyesight using different techniques. The study aimed at developing a framework for understanding risks to textile workers resulting from lack of health and safety standards in companies. Results: Findings showed that most of the workers have been affected by respiratory problems, increase in muscle tone, eye problems and musculoskeletal problem. It has been also observed that job security or regular work impacts positively to the worker’s long term body health. However, there is an immediate need to adopt and implement measures in accordance with Indian Factories Act (OHSAS 18001/ILO-OSH 2001 which includes directions and procedures in respect of industrial installations, work environment and occupational health and safety guidelines.

  2. Synthetic Textile Red Dye Removal From Aqueous Solution by Adsorption onto Pomegranate Peel

    Directory of Open Access Journals (Sweden)

    Sundus Saleh Nehaba

    2017-07-01

    Full Text Available This study is conducted to evaluate the ability of using pomegranate peel as low cost material for adsorption one of synthetic textile dye (C.I.Direct Red 89 dye. The removal of dye from aqueous solution is done by using pomegranate peel with two forms, as raw pomegranate peel (RPP and activated carbon prepared from pomegranate peel(ACPP. Some operational factors like contact time, pH, adsorbent dosage , and temperature were investigated in experimental work. Also the thermodynamic parameters ΔH, ΔG, and ΔS were calculated, the result shows that the adsorption process of dye onto two forms of adsorbents was spontaneous and endothermic in nature. Finally, the adsorption isotherm of experimental data we refitted for the Langmuir, and Freundlich equations

  3. Kinetics and equilibrium study for the adsorption of textile dyes on coconut shell activated carbon

    Directory of Open Access Journals (Sweden)

    Aseel M. Aljeboree

    2017-05-01

    Full Text Available The preparation of activated carbon from coconut husk with H2SO4 activation (CSAC and its ability to remove textile dyes (maxilon blue GRL, and direct yellow DY 12, from aqueous solutions were reported in this study. The adsorbent was characterized with Fourier transform infrared spectrophotometer (FT-IR, and scanning electron microscope (SEM. Various physiochemical parameters such as, contact time, initial dye concentration, adsorbent dosage, particle size, pH of dye solution and temperature were investigated in a batch-adsorption technique. Result showed that the adsorption of both GRL and DY 12 dyes was favorable at acidic pH. The adsorption uptake was found to increase with increase in initial dye concentration, and contact time but decreases with the amount of adsorbent, particle size, and temperature of the system. The chemisorption, intra-particle diffuse, pseudo-first-order and pseudo-second-order kinetic models were applied to test the experimental data. The pseudo-second order exhibited the best fit for the kinetic studies, which indicates that adsorption of (GRL, and DY 12 is limited by chemisorption process. The equilibrium data were evaluated using Langmuir, Freundlich, Temkin and Fritz–Schlunder isotherms. The Fritz–Schlunder model best describes the uptake of (GRL and DY 12 dye, which implies that the adsorption of textiles dyes in this study onto coconut husk activated carbon is heterogeneous with multi-layers. Thermodynamic parameters such as Gibbs free energy, enthalpy and entropy were determined. It was found that (GRL and DY 12 dye adsorption was spontaneous and endothermic.

  4. Equilibrium, kinetics and thermodynamics studies of textile dyes adsorption on modified Tunisian clay

    Directory of Open Access Journals (Sweden)

    naghmouchi nahed

    2016-04-01

    Full Text Available The adsorption capacity of two anionic textile dyes (RR120 and BB150 on DMSO intercalated Tunisian raw clay was investigated with respect to contact time, initial dye concentration, pH and Temperature. The equilibrium data were fitted into Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms. The kinetic parameters were calculated using pseudo-first order, pseudo second-order, intra-particle diffusion and Elovich kinetic models. The thermodynamic parameters (DH°, DS° and DG° of the adsorption process were also evaluated.

  5. ASEAN ECONOMIC COMMUNITY IMPLEMENTATION AND INDONESIAN TEXTILE INDUSTRY COMPETITIVENESS

    Directory of Open Access Journals (Sweden)

    Yuvensius Sri Susilo

    2013-10-01

    Full Text Available AbstractThis study aims to analyze the impact of ASEAN Economic Community implementation in 2015 on the competitiveness of Indonesian textile and textile products industry. It uses simulations with the GTAP model to answer the proposed research questions. The GTAP simulation results suggest that Indonesian textile industry would gain the largest trade surplus followed by Thailand and Malaysia. For apparel, Vietnam would benefit the most, followed by Indonesia and Thailand. The ratio of domestic to import prices analysis suggests that Indonesian textile products have higher competitiveness than the other ASEAN’s. For the apparel products, Indonesia is as competitive as both Malaysia and the Philippines.Keywords: AEC 2015, Competitiveness, Textile dan Textile Products Industry, IndonesiaJEL Classification: C68, F15AbstrakPenelitian ini bertujuan untuk menganalisis dampak penerapan Masyarakat Ekonomi ASEAN pada 2015 pada daya saing industri tekstil dan produk tekstil Indonesia. Alat analisis yang digunakan deskriptif dan simulasi dengan model GTAP. Hasil simulasi GTAP menyarankan bahwa industri tekstil Indonesia akan memperoleh surplus perdagangan terbesar, diikuti oleh Thailand dan Malaysia. Untuk produk pakaian, Vietnam memperoleh manfaat terbesar diikuti Indonesia dan Thailand. Berdasarkan rasio harga domestik terhadap harga impor, daya saing produk tekstil Indonesia relatif lebih tinggi dibandingkan negara-negara ASEAN lainnya. Untuk produk pakaian, Indonesia kompetitif, sejajar dengan Malaysia dan Filipina.Kata kunci: AEC 2015, Daya Saing, Tekstil dan Produk Tekstil JEL Classification: C68, F15

  6. Manufacturing processes in the textile industry. Expert Systems for fabrics production

    OpenAIRE

    Bullon, Juan; González Arrieta, Angélica; Hernández Encinas, Ascensión; Queiruga Dios, Araceli

    2017-01-01

    The textile industry is characterized by the economic activity whose objective is the production of fibres, yarns, fabrics, clothing and textile goods for home and decoration,as well as technical and industrial purposes. Within manufacturing, the Textile is one of the oldest and most complex sectors which includes a large number of sub-sectors covering the entire production cycle, from raw materials and intermediate products, to the production of final products. Textile industry activities pr...

  7. Allergic Contact Dermatitis Induced by Textile Necklace

    Directory of Open Access Journals (Sweden)

    Uffe Nygaard

    2013-11-01

    Full Text Available Allergic contact dermatitis to textile dyes is considered to be a rare phenomenon. A recent review reported a prevalence of contact allergy to disperse dyes between 0.4 and 6.7%. The relevance of positive patch testing was not reported in all studies. Textile dye allergy is easily overlooked and is furthermore challenging to investigate as textile dyes are not labelled on clothing. In this report, we present a case of allergic contact dermatitis to a textile necklace. The patch test showed strong reactions to the necklace and the azo dyes Disperse Orange 1 and Disperse Yellow 3. Despite the European legislation and the reduced use of disperse dyes in Third World countries, disperse azo dyes still induce new cases of allergic contact dermatitis.

  8. Advanced treatments for the removal of a textile dye

    International Nuclear Information System (INIS)

    Almazan S, P. T.

    2016-01-01

    In this work, the remove a dye from aqueous solution and the treatment of textile wastewater using natural and iron and copper modified materials and advanced oxidation by Fenton and photo-Fenton heterogeneous processes are presented. Clay and activated carbon were modified using Fe and Cu electrodes at ph values of 7 and 2 respectively. The materials were characterized by scanning electronic microscopy (Sem), electron X-ray dispersive spectroscopy (EDS), X-ray diffraction and specific area (Bet), the optimum ph for clay modifications with Fe and Cu was 7, whereas for copper modified activated carbon was 2, because de elemental analysis indicated that under the above conditions the content of evaluated metals is highest. The specific area for natural and iron and copper modified clay samples was 5.97, 131.30 and 78.44 m"2/g, whereas for natural and copper modified activated carbon at ph 2 was 654.85 and 647.61 m"2/g. Dye and wastewater used in this study were obtained from a laundry where jeans are manufactured in Almoloya del Rio in Mexico State. Dye was characterized by infrared spectrophotometry and UV-Vis and it was compared with a standard of potassium indigo trisulfonate and it was observed that both spectra were identical, whereby the dye used in this study is an indigo dye with a maximum absorption band at 591 nm. The characterization of wastewater shows a low biodegradability index (0.25) indicating the presence of non-biodegradability organic matter, and a high concentration of phosphorous was found (93.7 mg/L). A compound parabolic concentrator (CPC-2D) was built to concentrate UV radiation from sunlight and applied in photo-Fenton heterogeneous process obtaining concentrated UV-A and UV-B radiation of 54.29±0.71 and 1.65±0.37 W/m"2 respectively. Iron modified clay (Mt-Fe-7) and copper modified activated carbon (Ac-Cu-2) was used as catalyst in the photo-Fenton process with hydrogen peroxide. The results show that using 1.5 g of catalyst, a

  9. Study of the sensitising potential of various textile dyes using a biphasic murine local lymph node assay.

    Science.gov (United States)

    Ahuja, V; Platzek, T; Fink, H; Sonnenburg, A; Stahlmann, R

    2010-09-01

    Disperse dyes, which are suitable for dyeing synthetic fibres, are responsible for the great majority of allergic contact dermatitis (ACD) cases to textile dyes. The aim of the present study was to investigate the sensitising potential of various disperse dyes using a biphasic protocol of the local lymph node assay (LLNA). Briefly, mice were shaved over a surface of approximately 2 cm(2) on their backs and treated using a "sensitisation-challenge protocol". The shaved surface was treated once daily on days 1-3 with 50 microl of the test solution. Animals remained untreated on days 4-14. On days 15-17, mice were treated with 25 microl of the test solution on the dorsum of both ears. Mice were killed on day 19 with deep CO(2) anaesthesia, the lymph nodes prepared and various end points, such as ear thickness, ear punch weight, lymph node weight, lymph node cell count and the proportion of various lymphocyte subpopulations, were determined by flow cytometry. The results were compared to control group treated with the vehicle alone. Our results showed that almost all of the tested textile dyes caused a significant increase in lymph node cell count and lymph node weight. We also observed an increase in ear thickness and ear punch weight in most of the concentrations tested for various textile dyes. We observed a decrease in CD4+ and CD8+ cells and an increase in CD19+, CD45+ and CD45+/1A+ cells in most of the cases, which is characteristic for allergens. The CD4+/CD69+ cells increased in only few experiments mainly with Disperse Blue 124 and Disperse Blue 106. Based on our results, the disperse dyes could be arranged in four groups on the basis of their sensitising potency in the following decreasing order (in parenthesis: lowest concentration causing a significant increase in lymph node cell number): group 1, strong: Disperse Blue 124 and Disperse Blue 106 (0.003%); group 2, moderate: Disperse Red 1 and Disperse Blue 1 (3%); group 3, weak: Disperse Orange 37 and

  10. ASEAN Economic Community Implementation and Indonesian Textile Industry Competitiveness

    OpenAIRE

    Susilo, Yuvensius Sri

    2013-01-01

    AbstractThis study aims to analyze the impact of ASEAN Economic Community implementation in 2015 on the competitiveness of Indonesian textile and textile products industry. It uses simulations with the GTAP model to answer the proposed research questions. The GTAP simulation results suggest that Indonesian textile industry would gain the largest trade surplus followed by Thailand and Malaysia. For apparel, Vietnam would benefit the most, followed by Indonesia and Thailand. The ratio of domest...

  11. ASEAN Economic Community Implementation and Indonesian Textile Industry Competitiveness

    OpenAIRE

    Susilo, Yuvensius Sri

    2013-01-01

    This study aims to analyze the impact of ASEAN Economic Community implementation in 2015 on the competitiveness of Indonesian textile and textile products industry. It uses simulations with the GTAP model to answer the proposed research questions. The GTAP simulation results suggest that Indonesian textile industry would gain the largest trade surplus followed by Thailand and Malaysia. For apparel, Vietnam would benefit the most, followed by Indonesia and Thailand. The ratio of domestic to im...

  12. ASEAN ECONOMIC COMMUNITY IMPLEMENTATION AND INDONESIAN TEXTILE INDUSTRY COMPETITIVENESS

    OpenAIRE

    Susilo, Yuvensius Sri

    2013-01-01

    AbstractThis study aims to analyze the impact of ASEAN Economic Community implementation in 2015 on the competitiveness of Indonesian textile and textile products industry. It uses simulations with the GTAP model to answer the proposed research questions. The GTAP simulation results suggest that Indonesian textile industry would gain the largest trade surplus followed by Thailand and Malaysia. For apparel, Vietnam would benefit the most, followed by Indonesia and Thailand. The ratio of domest...

  13. Ecological modernisation and institutional transformations in the Danish textile industry

    DEFF Research Database (Denmark)

    Søndergård, Bent; Hansen, Ole Erik; Holm, Jesper

    2004-01-01

    The interplay of environmental regulation programs and environmental transformations in the Danish textile industry is analysed. The result of the interplay is summarised as an ecological modernisation process, which has established distributed environmental competences at enterprises and institu......The interplay of environmental regulation programs and environmental transformations in the Danish textile industry is analysed. The result of the interplay is summarised as an ecological modernisation process, which has established distributed environmental competences at enterprises...... and institutional actors in the textile industry, and has established new environmental perceptions and agendas in the industry....

  14. Response of Penaeid Prawns (Metapanaeus monoceros) to textile dye industrial effluents (TDIE): An indicator of stress

    Digital Repository Service at National Institute of Oceanography (India)

    Praneeth, R.R.; Shirodkar, P.V.; ManiMurali, R.; Ravindran, J.; Brahma, S.; Vethamony, P.

    and decaying food materials [8]. In order to reduce the excreted waste in the test tanks, the feeding was stopped 24hrs prior to the commencement of acute bioassay tests. Test method Short-term LC50 (median lethal concentration) toxicity tests were carried... of India. Material and Method The TDIE or the RO rejects were collected from 9 textile industries from the Erode Industrial area. Part of these collected effluents was used for physico-chemical analyses at the site itself and the other part was taken...

  15. Textile sustainability: reuse of clean waste from the textile and apparel industry

    Science.gov (United States)

    Broega, A. C.; Jordão, C.; Martins, S. B.

    2017-10-01

    Today societies are already experiencing changes in their production systems and even consumption in order to guarantee the survival and well-being of future generations. This fact emerges from the need to adopt a more sustainable posture in both people’s daily lives and productive systems. Within this context, textile sustainability emerges as the object of study of this work whose aim is to analyse which sustainability dimensions are being prioritized by the clean waste management systems of the textile and garment industries. This article aims to analyse solutions that are being proposed by sustainable creative business models in the reuse of discarded fabrics by the textile industry. Search also through a qualitative research by a case study (the Reuse Fabric Bank) understand the benefits generated by the re-use in environmental, economic, social and ways to add value.

  16. Appraisal of marigold flower based lutein as natural colourant for textile dyeing under the influence of gamma radiations

    Science.gov (United States)

    Adeel, Shahid; Gulzar, Tahsin; Azeem, Muhammad; Fazal-ur-Rehman; Saeed, Muhammad; Hanif, Iram; Iqbal, Naeem

    2017-01-01

    Maintaining colour strength and fastness of the fabrics dyed with natural colourants had been the major constraint of utilizing plant based dyes in modern textile practices. The present study was concerned with the extraction of lutein dye from marigold (Tagetes erecta L.) flowers and role of gamma radiation in improving colour strength and fastness characteristics of the extracted dye. The investigation of dyed fabric in spectraflash showed that gamma ray treatment of 30 kGy was the optimum absorbed dose for surface modification to improve its dye uptake ability. Good colour strength was obtained when irradiated cotton (RC, 30 kGy) was dyed with extract of radiated marigold flower powder (RP) at 70 °C for 85 min, keeping M:L of 1:50 using dye bath of pH 5.0. The results from mordanting experiments revealed that 7% of tannic acid as pre-mordant and 5% of Cu as post-mordant were the best treatments to improve colour strength. It was found that gamma ray induced extraction of lutein from marigold flowers had a potential to be utilized as natural dyes in textile sector to produce yellowish green shades.

  17. Modern industrial and pharmacological applications of indigo dye and its derivatives--a review.

    Science.gov (United States)

    Stasiak, Natalia; Kukuła-Koch, Wirginia; Głowniak, Kazimierz

    2014-01-01

    Plant sources, chemical properties, bioactivities, as well as the synthesis of indigo dye and its derivatives, are reviewed in this paper. These compounds were chosen because of their significant benefits and scope of application as both coloring agents in the textile industry and as pharmacologically active natural products. Their use in traditional chinese medicine (TCM) has directed the attention of European researchers and medical doctors alike. The preparation of indigoferous plants--Indigo naturalis is currently about to be introduced into the European Pharmacopoeia.

  18. Electrochemical incineration of indigo textile dye in filter-press-type FM01-LC electrochemical cell using BDD electrodes

    International Nuclear Information System (INIS)

    Butron, Edgar; Juarez, Manuel E.; Solis, Myrna; Teutli, Margarita; Gonzalez, Ignacio; Nava, Jose L.

    2007-01-01

    This work shows results obtained in the incineration of 1 mM indigo textile dye (536 ppm COD) in 0.05 M NaCl aqueous media (which resembles a denim laundry industrial wastewater). Microelectrolysis and macroelectrolysis studies indicated that oxidation of indigo dye was carried out via hydroxyl radicals (OH·) formed by water oxidation on the BDD surface, instead of active chlorine as usually occurs by using DSA. Electrolyses in a FM01-LC reactor was performed at Reynolds between 1600 -2 . The experimental set-up achieved 100% efficiency in color removal, indigo mineralization and current efficiency. Estimated energy consumption, at Re = 12892 and J = 5.3 mA cm -2 , was 9 kWh m -3 . Experimental data revealed that hydrodynamic conditions do not influence either the indigo degradation rate or the current efficiencies; therefore indigo degradation must involve a complex mechanism

  19. Electrocoagulation for the treatment of textile industry effluent--a review.

    Science.gov (United States)

    Khandegar, V; Saroha, Anil K

    2013-10-15

    Various techniques such as physical, chemical, biological, advanced oxidation and electrochemical are used for the treatment of industrial effluent. The commonly used conventional biological treatment processes are time consuming, need large operational area and are not effective for effluent containing toxic elements. Advanced oxidation techniques result in high treatment cost and are generally used to obtain high purity grade water. The chemical coagulation technique is slow and generates large amount of sludge. Electrocoagulation has recently attracted attention as a potential technique for treating industrial effluent due to its versatility and environmental compatibility. This technique uses direct current source between metal electrodes immersed in the effluent, which causes the dissolution of electrode plates into the effluent. The metal ions, at an appropriate pH, can form wide range of coagulated species and metal hydroxides that destabilize and aggregate particles or precipitate and adsorb the dissolved contaminants. Therefore, the objective of the present manuscript is to review the potential of electrocoagulation for the treatment of industrial effluents, mainly removal of dyes from textile effluent. © 2013 Elsevier Ltd. All rights reserved.

  20. Enhancement of biodegradability of real textile and dyeing wastewater by electron beam irradiation

    International Nuclear Information System (INIS)

    He, Shijun; Sun, Weihua; Wang, Jianlong; Chen, Lvjun; Zhang, Youxue; Yu, Jiang

    2016-01-01

    A textile and dyeing wastewater treatment plant is going to be upgraded due to the stringent discharge standards in Jiangsu province, China, and electron beam irradiation is considering to be used. In order to determine the suitable location of the electron accelerator in the process of wastewater treatment plant, the effects of electron beam (EB) irradiation on the biodegradability of various real wastewater samples collecting from the different stages of the wastewater treatment plant, the values of chemical oxygen demand (COD), biochemical oxygen demand (BOD 5 ), and the ratio of BOD 5 and COD (BOD 5 /COD), were compared before and after EB irradiation. During EB irradiation process, color indices and absorbance at 254 nm wavelength (UV 254 ) of wastewater were also determined. The results showed that EB irradiation pre-treatment cannot improve the biodegradability of raw textile and dyeing wastewater, which contains a large amount of biodegradable organic matters. In contrast, as to the final effluent of biological treatment process, EB irradiation can enhance the biodegradability to 224%. Therefore, the promising way is to apply EB irradiation as a post-treatment of the conventional biological process. - Highlights: • Irradiation pre-treatment did not improve the raw textile wastewater biodegradability. • Irradiation can highly enhance the biodegradability of biological treated effluent. • EB irradiation can be used as a post-treatment after biological process.

  1. Degradation of selected industrial dyes using Mg-doped TiO2 polyscales under natural sun light as an alternative driving energy

    Science.gov (United States)

    Shivaraju, H. P.; Midhun, G.; Anil Kumar, K. M.; Pallavi, S.; Pallavi, N.; Behzad, Shahmoradi

    2017-11-01

    Designing photocatalytic materials with modified functionalities for the utilization of renewable energy sources as an alternative driving energy has attracted much attention in the area of sustainable wastewater treatment applications. Catalyst-assisted advanced oxidation process is an emerging treatment technology for organic pollutants and toxicants in industrial wastewater. Preparation of visible-light-responsive photocatalyst such as Mg-doped TiO2 polyscales was carried out under mild sol-gel technique. Mg-doped TiO2 polyscales were characterized by powder XRD, SEM, FTIR, and optical and photocatalytic activity techniques. The Mg-doped TiO2 showed a mixed phase of anatase and rutile with an excellent crystallinity, structural elucidations, polyscales morphology, consequent shifting of bandgap energy and adequate photocatalytic activities under visible range of light. Mg-doped TiO2 polyscales were investigated for their efficiencies in the degradation of most commonly used industrial dyes in the real-time textile wastewater. Mg-doped TiO2 polyscales showed excellent photocatalytic degradation efficiency in both model industrial dyes (65-95%) and textile wastewater (92%) under natural sunlight as an alternative and renewable driving energy.

  2. Manufacturing processes in the textile industry. Expert Systems for fabrics production

    Directory of Open Access Journals (Sweden)

    Juan BULLON

    2017-03-01

    Full Text Available The textile industry is characterized by the economic activity whose objective is the production of fibres, yarns, fabrics, clothing and textile goods for home and decoration,as well as technical and industrial purposes. Within manufacturing, the Textile is one of the oldest and most complex sectors which includes a large number of sub-sectors covering the entire production cycle, from raw materials and intermediate products, to the production of final products. Textile industry activities present different subdivisions, each with its own traits. The length of the textile process and the variety of its technical processes lead to the coexistence of different sub-sectors in regards to their business structure and integration. The textile industry is developing expert systems applications to increase production, improve quality and reduce costs. The analysis of textile designs or structures includes the use of mathematical models to simulate the behavior of the textile structures (yarns, fabrics and knitting. The Finite Element Method (FEM has largely facilitated the prediction of the behavior of that textile structure under mechanical loads. For classification problems Artificial Neural Networks (ANNs haveproved to be a very effective tool as a quick and accurate solution. The Case-Based Reasoning (CBR method proposed in this study complements the results of the finite element simulation, mathematical modeling and neural networks methods.

  3. Assessment on the decolourization of textile dye (Reactive Yellow) using Pseudomonas sp. immobilized on fly ash: Response surface methodology optimization and toxicity evaluation.

    Science.gov (United States)

    Roy, Uttariya; Sengupta, Shubhalakshmi; Banerjee, Priya; Das, Papita; Bhowal, Avijit; Datta, Siddhartha

    2018-06-18

    This study focuses on the investigation of removal of textile dye (Reactive Yellow) by a combined approach of sorption integrated with biodegradation using low cost adsorbent fly ash immobilized with Pseudomonas sp. To ensure immobilization of bacterial species on treated fly ash, fly ash with immobilized bacterial cells was characterized using Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and fluorescence microscopy. Comparative batch studies were carried out using Pseudomonas sp, fly ash and immobilized Pseudomonas sp on flyash and were observed that immobilized Pseudomonas sp on flyash acted as better decolourizing agent. The optimized pH, temperature, and immobilized adsorbent dosage for highest percentage of dye removal were observed to be pH 6, 303 K, 1.2 g/L in all the cases. At optimum condition, the highest percentage of dye removal was found to be 88.51%, 92.62% and 98.72% for sorption (flyash), biodegradation (Pseudomonas sp) and integral approach (Pseudomonas sp on flyash) respectively. Optimization of operating parameters of textile dye decolourization was done by response surface methodology (RSM) using Design Expert 7 software. Phytotoxicity evaluation with Cicer arietinum revealed that seeds exposed to untreated dye effluents showed considerably lower growth, inhibited biochemical, and enzyme parameters with compared to those exposed to treated textile effluents. Thus this immobilized inexpensive technique could be used for removal of synthetic dyes present in textile wastewater. Copyright © 2018 Elsevier Ltd. All rights reserved.

  4. Polysulfone thin film composite nanofiltration membranes for removal of textile dyes wastewater

    Science.gov (United States)

    Sutedja, Andrew; Aileen Josephine, Claresta; Mangindaan, Dave

    2017-12-01

    This research was conducted to produce nanofiltration (NF) membranes, which have good performance in terms of removal of textile dye (Reactive Red 120, RR120) from simulated wastewater as one of several eco-engineering developments for sustainable water resource management. Phase inversion technique was utilized to fabricate the membrane with polysulfone (PSF) support, dissolved in N-methyl-2 pyrollidone (NMP) solvent, and diethylene glycol (DEG) as non-solvent additive. The fabricated membrane then modified with the additional of dopamine coating and further modified by interfacial polymerization (IP) to form a thin film composite (TFC)-NF membrane with PSF substrate. TFC was formed from interaction between amine monomer (2 %-weight of m-phenylenediamine (MPD) in deionized water) and acyl chloride (0.2 %-weight of trimesoyl chloride (TMC) in hexane). From this study, the fabricated PSF-TFC membrane could remove dyestuff from RR120 wastewater by 88% rejection at 120 psi. The result of this study is promising to be applied in Indonesia where researches on removal of dyes from textile wastewater by using membranes are still quite rare. Therefore, this paper may open new avenues for development of eco-engineering development in Indonesia.

  5. Treatment and recycling of textile wastewaters

    International Nuclear Information System (INIS)

    Ciardelli, G.; Brighetti, G.

    1999-01-01

    The results of an experimental campaign involving the treatment of textile wastewaters for recycle by mean of an absorption resins pilot plant are briefly described. The case study concerned the treatment and reuse of yarns dyeing wastewaters. Results obtained indicate the possibility of an industrial scale implementation of the technique [it

  6. The Framework of Tunisian Textile and Clothing Industry

    OpenAIRE

    Kahia, Montassar

    2017-01-01

    In this paper, we will first present the textile and the clothing sector in the Tunisian economy. It is therefore very important to situate this sector in our economy, evaluating its various features and outline its strengths and weaknesses. We also focus on the historical evolution of Tunisian textile and clothing sector. We will establish then a comparison between Tunisia and China as part of the textile and clothing industry.

  7. Application of the removal of pollutants from textile industry wastewater in constructed wetlands using fuzzy logic.

    Science.gov (United States)

    Dogdu, Gamze; Yalcuk, Arda; Postalcioglu, Seda

    2017-02-01

    There are more than a hundred textile industries in Turkey that discharge large quantities of dye-rich wastewater, resulting in water pollution. Such effluents must be treated to meet discharge limits imposed by the Water Framework Directive in Turkey. Industrial treatment facilities must be required to monitor operations, keep them cost-effective, prevent operational faults, discharge-limit infringements, and water pollution. This paper proposes the treatment of actual textile wastewater by vertical flow constructed wetland (VFCW) systems operation and monitoring effluent wastewater quality using fuzzy logic with a graphical user interface. The treatment performance of VFCW is investigated in terms of chemical oxygen demand and ammonium nitrogen (NH4-N) content, color, and pH parameters during a 75-day period of operation. A computer program was developed with a fuzzy logic system (a decision- making tool) to graphically present (via a status analysis chart) the quality of treated textile effluent in relation to the Turkish Water Pollution Control Regulation. Fuzzy logic is used in the evaluation of data obtained from the VFCW systems and for notification of critical states exceeding the discharge limits. This creates a warning chart that reports any errors encountered in a reactor during the collection of any sample to the concerned party.

  8. A novel approach for the reuse of the textile bleaching wastewater

    International Nuclear Information System (INIS)

    Shaikh, I.A.

    2015-01-01

    In this paper, the efficiency of used hydrogen peroxide (H/sub 2/O/sub 2/) bleach bath was assessed for the elimination of hydrolyzed unfixed reactive dyes from cellulosic fabrics. The aim of this study was to reuse textile wastewater and develop a new textile dyeing and wash-off method with small quantities of water and chemicals, without compromising quality of dyeing. For this purpose, spent bleach bath having H/sub 2/O/sub 2/ was collected from a textile industry and used in wash-off step of fabric after dyeing with reactive dyes to determine colour fastness properties and shade strength of selected reactive dyes. Five dyeings were carried out, using C. I. Reactive Yellow 138, C. I. Reactive Orange 122, C. I. Reactive Red 195, C. I. Reactive Blue 221, and C. I. Reactive Black 5 and dyed samples were passed through both conventional wash-off and new wash-off method containing spent bleach bath. Washing fastness, rubbing fastness, change of colour, and magnitude of total colour difference ( E*) values of both washed-off fabrics were compared. The colourfastness properties and final shade of fabrics washed-off with spent bleach were found to be comparable to those washed-off conventionally. This study concludes that spent bleach bath containing H/sub 2/O/sub 2/ is a potential nominee for the removal of hydrolyzed reactive dyes from cotton fabrics. (author)

  9. Hairy root induction and phytoremediation of textile dye, Reactive green 19A-HE4BD, in a halophyte, Sesuvium portulacastrum (L. L.

    Directory of Open Access Journals (Sweden)

    Vinayak H. Lokhande

    2015-12-01

    Full Text Available In this study, we report phytoremediation of textile dyes using hairy roots derived through Agrobacterium rhizogenes (NCIM 5140 infection of in vitro leaf and stem explants of a halophyte Sesuvium portulacastrum (L. L. Leaf explants showed higher frequency of hairy root induction (70% than stem explants (30%, and maximum number of roots (leaf 42.3 ± 2.4 and stem 50.3 ± 1.7. Transformed nature of hairy roots was ascertained by amplifying 970 bp region of T-DNA of Ri plasmid. Hairy roots were screened for phytoremediation of various textile dyes and results showed that HRs were able to degrade Reactive green 19A HE4BD upto 98% within 5 days of incubation. Spectrophotometric analysis showed decrease in dye concentration while HPLC and FTIR analysis confirmed its degradation. Seed germination assay demonstrated non-toxic nature of the extracted metabolites. This is the first report on induction of hairy root culture in Sesuvium portulacastrum and phytoremediation of textile dyes.

  10. Performance of SBR for the treatment of textile dye wastewater: Optimization and kinetic studies

    Directory of Open Access Journals (Sweden)

    S. Sathian

    2014-06-01

    Full Text Available In this work, sequential batch reactor (SBR was employed for the treatment of textile dye wastewater. The performance of four white rot fungi (WRF viz. Coriolus versicolor, Pleurotus floridanus, Ganoderma lucidum and Trametes pubescens was evaluated in pure and mixed combinations in terms of decolorization. From the results it was found that the combination of Pleurotus floridanus, Ganoderma lucidum and Trametes pubescens was best and they were used in the SBR. The process parameters like air flow rate, sludge retention time (SRT and cycle period were optimized using response surface methodology (RSM. At these optimized conditions, treatment of textile dye wastewater was carried out at various initial dye wastewater concentration and hydraulic retention time. The performance of SBR was analyzed in terms of decolorization, COD reduction and sludge volume index (SVI. From the results it was found that a maximum decolorization and COD reduction of 71.3% and 79.4%, respectively, was achieved in the SBR at an organic loading rate of 0.165 KgCOD/m3 d. The sludge volume index (SVI was found to be low in the range of 90–103 mL/g. The kinetic study was carried out using a first order based model and the degradation follows the first order system.

  11. Removal of textile dyes by carbon nanotubes: A comparison between adsorption and UV assisted photocatalysis

    Science.gov (United States)

    Dutta, Arun Kumar; Ghorai, Uttam Kumar; Chattopadhyay, Kalyan Kumar; Banerjee, Diptonil

    2018-05-01

    Amorphous carbon nanotubes were synthesized using low temperature solid state reaction. The as synthesized a-CNTs were used to remove two different textile dyes, Methyl Orange and Rhodamine B from water. Two ways of removal were followed; i.e. Adsorption and UV assisted catalysis. Adsorption experiment was carried out under various conditions. Analysis of the adsorption data was performed using Langmuir, Freundlich and Temkin models. It has been shown that the as prepared samples can effectively be used as adsorbent of textile dyes. Exposure of visible or UV light can make no significant additional effect to the removal efficiency. The mechanism of the adsorption has been found to be following a pseudo 1st order mechanism with corresponding correlation factor >0.95. Also it has been shown that presence of impurities can drastically kill the performance of the sample. This detail comparative study has been reported for the first time.

  12. Immobilized Lignin Peroxidase-Like Metalloporphyrins as Reusable Catalysts in Oxidative Bleaching of Industrial Dyes

    Directory of Open Access Journals (Sweden)

    Paolo Zucca

    2016-07-01

    Full Text Available Synthetic and bioinspired metalloporphyrins are a class of redox-active catalysts able to emulate several enzymes such as cytochromes P450, ligninolytic peroxidases, and peroxygenases. Their ability to perform oxidation and degradation of recalcitrant compounds, including aliphatic hydrocarbons, phenolic and non-phenolic aromatic compounds, sulfides, and nitroso-compounds, has been deeply investigated. Such a broad substrate specificity has suggested their use also in the bleaching of textile plant wastewaters. In fact, industrial dyes belong to very different chemical classes, being their effective and inexpensive oxidation an important challenge from both economic and environmental perspective. Accordingly, we review here the most widespread synthetic metalloporphyrins, and the most promising formulations for large-scale applications. In particular, we focus on the most convenient approaches for immobilization to conceive economical affordable processes. Then, the molecular routes of catalysis and the reported substrate specificity on the treatment of the most diffused textile dyes are encompassed, including the use of redox mediators and the comparison with the most common biological and enzymatic alternative, in order to depict an updated picture of a very promising field for large-scale applications.

  13. Short communication: Industrial effluent treatments using heavy ...

    African Journals Online (AJOL)

    Bioflocculants produced by Herbaspirillium sp. CH7, Paenibacillus sp. CH11, Bacillus sp. CH15 and a Halomonas sp. were preliminarily evaluated as flocculating agents in the treatment of industrial wastewater effluents. Industrial (1 local chemical-industry and 2 textile-industry: Biavin 109-medium blue dye and Whale dye) ...

  14. MANUAL: BEST MANAGEMENT PRACTICES FOR POLLUTION PREVENTION IN THE TEXTILE INDUSTRY

    Science.gov (United States)

    Textiles is one the nation's oldest industries, dating back to the beginning of the American Industrial revolution in the 1790s. Despite perceptions of the decline of U.S. textile manufacturing in the face of offshore competition, the industry remains one of the largest, most di...

  15. An Evaluation Model for Sustainable Development of China’s Textile Industry: An Empirical Study

    Science.gov (United States)

    Zhao, Hong; Lu, Xiaodong; Yu, Ting; Yin, Yanbin

    2018-04-01

    With economy’s continuous rapid growth, textile industry is required to search for new rules and adjust strategies in order to optimize industrial structure and rationalize social spending. The sustainable development of China’s textile industry is a comprehensive research subject. This study analyzed the status of China’s textile industry and constructed the evaluation model based on the economical, ecologic, and social benefits. Analytic Hierarchy Process (AHP) and Data Envelopment Analysis (DEA) were used for an empirical study of textile industry. The result of evaluation model suggested that the status of the textile industry has become the major problems in the sustainable development of China’s textile industry. It’s nearly impossible to integrate into the global economy if no measures are taken. The enterprises concerned with the textile industry status should be reformed in terms of product design, raw material selection, technological reform, technological progress, and management, in accordance with the ideas and requirements of sustainable development. The results of this study are benefit for 1) discover the main elements restricting the industry’s sustainable development; 2) seek for corresponding solutions for policy formulation and implementation of textile industry; 3) provide references for enterprises’ development transformation in strategic deployment, fund allocation, and personnel assignment.

  16. Fiscal 2000 achievement report on the venture business assisting type regional consortium - Minor business creation base type. Development of high pressure fluid aided dyeing and finishing system for cellulose textile products generating no waste liquid; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo seika hokokusho. Cellulose kei sen'i seihin no koatsu ryutai ni yoru muhaieki senshoku kako system no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    There is a voice in the textile dyeing industry for a dyeing and finishing method without discharge of waste liquid from the viewpoint of environmental protection. When the special coexistence effect is applied to the technology of making polar dyes soluble in high pressure carbon dioxide, according to Associate Professor Mishima of Fukuoka University, a dyeing method is feasible wherein the separation of supercritical carbon dioxide and the dye is easier than in the conventional method of dyeing in water and wherein discharge of waste liquid after dyeing is not necessary. He also writes that technologies for recovering carbon dioxide have already been established. Under this project, attention is paid to cellulose textile products which will find a great demand, and efforts are made to commercialize a novel dyeing and finishing system of the low environmental impact type. The results of the research conducted under the project involve (1) the improvement of various dyes and assistants in their degree of solution in high pressure carbon dioxide, (2) development of a technology of attaching dyes and finishing agents to textiles, (3) designing and construction of a practical high pressure fluid dyeing and finishing apparatus, (4) search for optimum dyeing conditions for textile products using the said apparatus, and (5) the reinforced functions that textile products have after being dyed. (NEDO)

  17. NANOTECHNOLOGY IN TEXTILE INDUSTRY [REVIEW

    Directory of Open Access Journals (Sweden)

    RATIU Mariana

    2015-05-01

    Full Text Available Nanoscience and nanotechnology are the study and application of extremely small things and can be used across all the other science fields, such as chemistry, biology, physics, materials science, and engineering. Nanotechnology overcomes the limitation of applying conventional methods to impart certain properties to textile materials. There is no doubt that in the next few years nanotechnology will penetrate into every area of the textile industry. Nanotextiles are nanoscale fibrous materials that can be fictionalized with a vast array of novel properties, including antibiotic activity, self-cleaning and the ability to increase reaction rates by providing large surface areas to potential reactants. These materials are used not only as cloth fabric, but as filter materials, wound-healing gauzes and antibacterial food packaging agents in food industry. World demand for nano-materials will rise more than two-and-a-half times to $5.5 billion in 2016 driven by a combination of increased market penetration of existing materials, and ongoing development of new materials and applications. In recent years was demonstrated that nanotechnology can be used to enhance textile attributes, such as fabric softness, durability and breathability, water repellency, fire retardancy, antimicrobial properties in fibers, yarns and fabrics. The development of smart nanotextiles has the potential to revolutionize the production of fibers, fabrics or nonwovens and functionality of our clothing and all types of textile products and applications. Nanotechnology is considered one of the most promising technologies for the 21st century. Today is said that if the IT is the wave of the present, the nanotechnology is the wave of the present, the nanotechnology is the wave of the future.

  18. Tratamiento y reutilización de efluentes de la industria textil mediante técnicas de membranas

    OpenAIRE

    Buscio Olivera, Valentina

    2015-01-01

    Textile industry consumes large amount of water in their processes, mainly in dyeing and finishing operations. In general, during the dyeing process, up to 30% of dyes used can be discharged into wastewater. For this reason, the wastewater generated by this industry is characterized by high colouration. Different treatments such as biological or physico-chemical processes have been used to treat this kind of wastewater. Nonetheless, these treatments do not degrade dyes and, in general, a p...

  19. Synthesis of silver nanoparticles using bacterial exopolysaccharide and its application for degradation of azo-dyes

    Directory of Open Access Journals (Sweden)

    Chinnashanmugam Saravanan

    2017-09-01

    Full Text Available In this study, the synthesis and characterization of exopolysaccharide-stabilized sliver nanoparticles (AgNPs was carried out for the degradation of industrial textile dyes. Characterization of AgNPs was done using surface plasmon spectra using UV–Vis spectroscopy, X-ray diffraction (XRD and Raman spectroscopy. The morphological nature of AgNPs was determined through transmission electron microscopy (TEM, scanning electron microscopy (SEM and atomic force microscopy (AFM, which indicated that the AgNPs were spherical in shape, with an average size of 35 nm. The thermal behaviour of AgNPs revealed that it is stable up to 437.1 °C and the required energy is 808.2J/g in TGA-DTA analysis. Ability of EPS stabilized AgNPs for degradation of azo dyes such as Methyl orange (MO and Congo red (CR showed that EPS stabilized AgNPs were found to be efficient in facilitating the degradation process of industrial textile dyes. The electron transfer takes place from reducing agent to dye molecule via nanoparticles, resulting in the destruction of the dye chromophore structure. This makes EPS-AgNPs a suitable, cheap and environment friendly candidate for biodegradation of harmful textile dyes.

  20. Decolorization of textile industry wastewater in solid state fermentation with Peach-Palm (Bactris gasipaes residue

    Directory of Open Access Journals (Sweden)

    J. A. Chicatto

    2018-02-01

    Full Text Available Abstract In this work we have assessed the decolorization of textile effluents throughout their treatment in a solid-state fermentation (SSF system. SSF assays were conducted with peach-palm (Bactris gasipaes residue using the white rot fungus Ganoderma lucidum EF 31. The influence of the dye concentration and of the amounts of peach-palm residue and liquid phase on both the discoloration efficiency and enzyme production was studied. According to our results, independently of experimental conditions employed, laccase was the main ligninolytic enzyme produced by G. lucidum. The highest laccase activity was obtained at very low effluent concentrations, suggesting the existence of an inhibitory effect of higher concentrations on fungal metabolism. The highest percentage of color removal was reached when 10 grams of peach palm residue was moistened with 60 mL of the final effluent. In control tests carried out with the synthetic dye Remazol Brilliant Blue R (RBBR decolorization efficiencies about 20% higher than that achieved with the industrial effluent were achieved. The adsorption of RBBR on peach-palm residue was also investigated. Equilibrium tests showed that the adsorption of this dye followed both Langmuir and Freundlich isotherms. Hence, our experimental results indicate that peach-palm residue is suitable substrate for both laccase production and color removal in industrial effluents.

  1. Decolorization of textile industry wastewater in solid state fermentation with Peach-Palm (Bactris gasipaes) residue.

    Science.gov (United States)

    Chicatto, J A; Rainert, K T; Gonçalves, M J; Helm, C V; Altmajer-Vaz, D; Tavares, L B B

    2018-02-15

    In this work we have assessed the decolorization of textile effluents throughout their treatment in a solid-state fermentation (SSF) system. SSF assays were conducted with peach-palm (Bactris gasipaes) residue using the white rot fungus Ganoderma lucidum EF 31. The influence of the dye concentration and of the amounts of peach-palm residue and liquid phase on both the discoloration efficiency and enzyme production was studied. According to our results, independently of experimental conditions employed, laccase was the main ligninolytic enzyme produced by G. lucidum. The highest laccase activity was obtained at very low effluent concentrations, suggesting the existence of an inhibitory effect of higher concentrations on fungal metabolism. The highest percentage of color removal was reached when 10 grams of peach palm residue was moistened with 60 mL of the final effluent. In control tests carried out with the synthetic dye Remazol Brilliant Blue R (RBBR) decolorization efficiencies about 20% higher than that achieved with the industrial effluent were achieved. The adsorption of RBBR on peach-palm residue was also investigated. Equilibrium tests showed that the adsorption of this dye followed both Langmuir and Freundlich isotherms. Hence, our experimental results indicate that peach-palm residue is suitable substrate for both laccase production and color removal in industrial effluents.

  2. Dyeing Industry Effluent System as Lipid Production Medium of Neochloris sp. for Biodiesel Feedstock Preparation

    Directory of Open Access Journals (Sweden)

    Vidyadharani Gopalakrishnan

    2014-01-01

    Full Text Available Microalgae lipid feedstock preparation cost was an important factor in increasing biodiesel fuel hikes. This study was conducted with the concept of implementing an effluent wastewater as lipid production medium for microalgae cultivation. In our study textile dyeing industry effluent was taken as a lipid production medium for Neochloris sp. cultivation. The changes in physicochemical analysis of effluent before and after Neochloris sp. treatment were recorded using standard procedures and AAS analysis. There was especially a reduction in heavy metal like lead (Pb concentration from 0.002 ppm to 0.001 ppm after Neochloris sp. treatment. Neochloris sp. cultivated in Bold Basal Medium (BBM (specific algal medium produced 41.93% total lipid and 36.69% lipid was produced in effluent based cultivation. Surprisingly Neochloris sp. cultivated in effluent was found with enhanced neutral lipid content, and it was confirmed by Nile red fluorescence assay. Further the particular enrichment in oleic acid content of the cells was confirmed with thin layer chromatography (TLC with oleic acid pure (98% control. The overall results suggested that textile dyeing industry effluent could serve as the best lipid productive medium for Neochloris sp. biodiesel feedstock preparation. This study was found to have a significant impact on reducing the biodiesel feedstock preparation cost with simultaneous lipid induction by heavy metal stress to microalgae.

  3. Degradation of Some Textile Dyes using Biological and Physical Treatments

    International Nuclear Information System (INIS)

    Hmd, R.F.K.

    2011-01-01

    A total of twenty samples composed of ten samples of decaying eucalyptus leaves and ten soil samples were collected from El-Kanater El-Khairia district. All isolates were purified and identified to the species level. They found to be belonging to two main genera: Aspergillus sp. and Penicillium sp. The obtained fungal isolates were screened for testing their ability to decolorize Isolan dyes. The strain Aspergillus niger ES-5 was chosen for its highest ability to decolorize the four Isolan dyes. The biological decolorization of the textile metal azo dye was investigated under co-metabolic conditions. The decolorization capacity of the strain was influenced by the presence and/or absence of media components. The majority of decolorization was growth related, where resulted in 90.4%, 99.6%, 95.0% and 94.6% for I.Y, I.R, I.N and I.G, respectively after 72 h, only 2.5, 1.3, 1.4 and 3.0% for I.Y, I.R, I.N and I.G, respectively were desorbed, while negligible decolorization was detected using extracellular fluid (ECF) as well as using dead pellets. The addition of the dye to fungal cultures didn’t affect the extracellular GOD production while intracellular GOD production exhibited a different profile. Pictures of the mycelia represent dye uptake over the 72 h period of decolorization. The metal detection using Energy Dispersive X-ray Spectroscopy (EDS) of the outer fungal mycelium wall and ECF were both below detection level after the decolorization process took place. Thus, decolorization process and the removal of the elements by A. niger ES-5 involve initial adsorption followed by entrapment of the adsorbed dye inside the fungal biomass. Gamma rays increase color intensity in I.Y, while the other three Isolan dyes showed negative decolorization efficiency till 2.5 kGy after which, slow increase in the decolorization was observed.

  4. Effect of organic load on decolourization of textile wastewater containing acid dyes in upflow anaerobic sludge blanket reactor

    International Nuclear Information System (INIS)

    Wijetunga, Somasiri; Li Xiufen; Jian Chen

    2010-01-01

    Textile wastewater (TW) is one of the most hazardous wastewater for the environment when discharged without proper treatment. Biological treatment technologies have shown encouraging results over the treatment of recalcitrant compounds containing wastewaters. Upflow anaerobic sludge blanket reactor (UASB) was evaluated in terms of colour and the reduction of chemical oxygen demand (COD) with different organic loads using TW containing dyes belonging to different chemical groups. The study was performed using six different dye concentrations (10 mg/L, 25 mg/L, 50 mg/L, 100 mg/L, 150 mg/L, 300 mg/L) with three COD levels (∼1000 mg/L, ∼2000 mg/L, ∼3000 mg/L). Decolourization, COD removal and reactor stability were monitored. Over 85% of colour removal was observed with all dye concentrations with three organic loads. Acid Red 131 and Acid Yellow 79 were decolourized through biodegradation while Acid Blue 204 was decolourized due to adsorption onto anaerobic granules. COD removal was high in all dye concentrations, regardless of co-substrate levels. The reactor did not show any instability during the study. The activity of granules was not affected by the dyes. Methanothrix like bacteria were the dominant group in granules before introducing TW, however, they were reduced and cocci-shape microorganism increased after the treatment of textile wastewater.

  5. Effect of organic load on decolourization of textile wastewater containing acid dyes in upflow anaerobic sludge blanket reactor

    Energy Technology Data Exchange (ETDEWEB)

    Wijetunga, Somasiri, E-mail: swije2001@yahoo.com [Laboratory of Environmental Biotechnology, School of Biotechnology, Southern Yangtze University, 170 Huihe Road, Wuxi 214036 (China); Li Xiufen [Laboratory of Environmental Biotechnology, School of Biotechnology, Southern Yangtze University, 170 Huihe Road, Wuxi 214036 (China); Jian Chen, E-mail: jchen@sytu.edu.cn [Laboratory of Environmental Biotechnology, School of Biotechnology, Southern Yangtze University, 170 Huihe Road, Wuxi 214036 (China)

    2010-05-15

    Textile wastewater (TW) is one of the most hazardous wastewater for the environment when discharged without proper treatment. Biological treatment technologies have shown encouraging results over the treatment of recalcitrant compounds containing wastewaters. Upflow anaerobic sludge blanket reactor (UASB) was evaluated in terms of colour and the reduction of chemical oxygen demand (COD) with different organic loads using TW containing dyes belonging to different chemical groups. The study was performed using six different dye concentrations (10 mg/L, 25 mg/L, 50 mg/L, 100 mg/L, 150 mg/L, 300 mg/L) with three COD levels ({approx}1000 mg/L, {approx}2000 mg/L, {approx}3000 mg/L). Decolourization, COD removal and reactor stability were monitored. Over 85% of colour removal was observed with all dye concentrations with three organic loads. Acid Red 131 and Acid Yellow 79 were decolourized through biodegradation while Acid Blue 204 was decolourized due to adsorption onto anaerobic granules. COD removal was high in all dye concentrations, regardless of co-substrate levels. The reactor did not show any instability during the study. The activity of granules was not affected by the dyes. Methanothrix like bacteria were the dominant group in granules before introducing TW, however, they were reduced and cocci-shape microorganism increased after the treatment of textile wastewater.

  6. Electrochemical incineration of indigo textile dye in filter-press-type FM01-LC electrochemical cell using BDD electrodes

    Energy Technology Data Exchange (ETDEWEB)

    Butron, Edgar [Universidad Nacional Autonoma de Mexico, Facultad de Estudios Superiores-Zaragoza, Mexico, D.F. (Mexico); Juarez, Manuel E.; Solis, Myrna [Instituto Politecnico Nacional, Centro de investigacion en Biotecnologia Avanzada, Tlaxcala (Mexico); Teutli, Margarita [Benemerita Universidad Autonoma de Puebla, Facultad de Ingenieria, Edificio 123, Cd. Universitaria, Puebla, Pue. (Mexico); Gonzalez, Ignacio; Nava, Jose L. [Universidad Autonoma Metropolitana-Iztapalapa, Departamento de Quimica, Mexico, D.F. (Mexico)

    2007-08-01

    This work shows results obtained in the incineration of 1 mM indigo textile dye (536 ppm COD) in 0.05 M NaCl aqueous media (which resembles a denim laundry industrial wastewater). Microelectrolysis and macroelectrolysis studies indicated that oxidation of indigo dye was carried out via hydroxyl radicals (OH.) formed by water oxidation on the BDD surface, instead of active chlorine as usually occurs by using DSA. Electrolyses in a FM01-LC reactor was performed at Reynolds between 1600 < Re < 18300, and a fixed current density of 5.3 and 15 mA cm{sup -2}. The experimental set-up achieved 100% efficiency in color removal, indigo mineralization and current efficiency. Estimated energy consumption, at Re = 12892 and J = 5.3 mA cm{sup -2}, was 9 kWh m{sup -3}. Experimental data revealed that hydrodynamic conditions do not influence either the indigo degradation rate or the current efficiencies; therefore indigo degradation must involve a complex mechanism. (author)

  7. [Fermentation production of microbial catalase and its application in textile industry].

    Science.gov (United States)

    Zhang, Dongxu; Du, Guocheng; Chen, Jian

    2010-11-01

    Microbial catalase is an important industrial enzyme that catalyzes the decomposition of hydrogen peroxide to water and oxygen. This enzyme has great potential of application in food, textile and pharmaceutical industries. The production of microbial catalase has been significantly improved thanks to advances in bioprocess engineering and genetic engineering. In this paper, we review the progresses in fermentation production of microbial catalase and its application in textile industry. Among these progresses, we will highlight strain isolation, substrate and environment optimization, enzyme induction, construction of engineering strains and application process optimization. Meanwhile, we also address future research trends for microbial catalase production and its application in textile industry. Molecular modification (site-directed mutagenesis and directed revolution) will endue catalase with high pH and temperature stabilities. Improvement of catalase production, based on the understanding of induction mechanism and the process control of recombinant stain fermentation, will further accelerate the application of catalase in textile industry.

  8. Effects of WTO on the Textile Industry on Developing Countries

    Directory of Open Access Journals (Sweden)

    Syed Abdul Sattar Shah

    2013-07-01

    Full Text Available The current investigates the Effects of WTO on the Textile Industry on Developing Countries. Data were collected from various secondary sources and data is analyzed by using SPSS-20 version statistical software. It was revealed that WTO more industrialized countries consented to export fewer textiles while less industrialized countries enjoyed increased quotas for exporting their textiles. Bangladesh was expected to suffer the most from the ending of the MFA because it was expected to face more competition, particularly from China, it has tried to maintain its competitiveness in the post-quota era. It was further revealed that It has also been examined that all over the world textile industries are facing high inflation which is the hottest issue due to which the cost of doing business is going higher and higher day by day. The Chinese, Indian, Sri Lankan and Bangladeshi textile manufacturers are also out of those affected ones whose major issues are associated with increased cost of production. China’s dominance of the global garments trade has also been affected due to the rise in the costs of material, labour, energy, environmental protection and high interest rate. Furthermore, the environmental standard is also a barrier to many Chinese enterprises; even most of the Chinese enterprises have inputted environmental Standard.

  9. All-solid, flexible solar textiles based on dye-sensitized solar cells with ZnO nanorod arrays on stainless steel wires

    Energy Technology Data Exchange (ETDEWEB)

    Chae, Youngjin [Department of Clothing and Textiles, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749 (Korea, Republic of); Park, Jung Tae; Koh, Jong Kwan [Department of Chemical and Biomolecular Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749 (Korea, Republic of); Kim, Jong Hak, E-mail: jonghak@yonsei.ac.kr [Department of Chemical and Biomolecular Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749 (Korea, Republic of); Kim, Eunae, E-mail: eakim@yonsei.ac.kr [Department of Clothing and Textiles, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749 (Korea, Republic of)

    2013-10-01

    Highlights: • All-solid, flexible solar textile fabricated with DSSCs is demonstrated. • DSSCs woven into a satin structure and transparent PET film are used. • Solar textile showed a high efficiency of 2.57%. -- Abstract: An all-solid, flexible solar textile fabricated with dye-sensitized solar cells (DSSCs) woven into a satin structure and transparent poly(ethylene terephthalate) (PET) film was demonstrated. A ZnO nanorod (NR) vertically grown from fiber-type conductive stainless steel (SS) wire was utilized as a photoelectrode, and a Pt-coated SS wire was used as a counter electrode. A graft copolymer, i.e. poly(vinyl chloride)-graft-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthesized via atom transfer radical polymerization (ATRP) and used as a solid electrolyte. The conditions for the growth of ZnO NR and sufficient dye loading were investigated to improve cell performance. The adhesion of PET films to DSSCs resulted in physical stability improvements without cell performance loss. The solar textile with 10 × 10 wires exhibited an energy conversion efficiency of 2.57% with a short circuit current density of 20.2 mA/cm{sup 2} at 100 mW/cm{sup 2} illumination, which is the greatest account of an all-solid, ZnO-based flexible solar textile. DSSC textiles with woven structures are applicable to large-area, roll-to-roll processes.

  10. Resource Communication Technology and Marketing of Textile Products: A U.S. Textile Industry Case Study

    Science.gov (United States)

    Baah, Anthony

    2010-01-01

    The purpose of the qualitative positivistic case study was to explore whether resource communication technology has helped or would help the marketing of textile products in the U.S. textile industry. The contributions of human capital in the marketing department, the marketing-demand information system function, and the product supply chain…

  11. Disruptores endocrinos utilizados en la industria textil-confección en España Endocrine disruptors used in textile industry in Spain

    Directory of Open Access Journals (Sweden)

    Rafael Gadea

    2009-03-01

    and selected through management and trade union organizations agreement. Occupational health technicians from the local trade unions visited participating companies and gathered information about chemicals in use through observation of available labels and safety data sheets and through personal interviews with technicians, safety representatives and workers using standardized questionnaires. Results: Participating companies cover a wide range of typical activities in the textile industry, most of them being medium sized (51-250 workers, n=39. Seventeen different chemicals acting as endocrine disrupters were identified in a variety of jobs, including fibre and tissues elaboration, washing, dyeing and finishing, among other. Conclusions: It would be needed to evaluate the level of exposure to endocrine disruptors in these tasks in order to prioritize necessary preventive actions.

  12. Organic and Inorganic Dyes in Polyelectrolyte Multilayer Films

    Science.gov (United States)

    Ball, Vincent

    2012-01-01

    Polyelectrolyte multilayer films are a versatile functionalization method of surfaces and rely on the alternated adsorption of oppositely charged species. Among such species, charged dyes can also be alternated with oppositely charged polymers, which is challenging from a fundamental point of view, because polyelectrolytes require a minimal number of charges, whereas even monovalent dyes can be incorporated during the alternated adsorption process. We will not only focus on organic dyes but also on their inorganic counterparts and on metal complexes. Such films offer plenty of possible applications in dye sensitized solar cells. In addition, dyes are massively used in the textile industry and in histology to stain textile fibers or tissues. However, the excess of non bound dyes poses serious environmental problems. It is hence of the highest interest to design materials able to adsorb such dyes in an almost irreversible manner. Polyelectrolyte multilayer films, owing to their ion exchange behavior can be useful for such a task allowing for impressive overconcentration of dyes with respect to the dye in solution. The actual state of knowledge of the interactions between charged dyes and adsorbed polyelectrolytes is the focus of this review article.

  13. Biodegradation of Textile Dyes by Fungi Isolated from North Indian Field Soil

    Directory of Open Access Journals (Sweden)

    Arshi Shahid

    2013-07-01

    Full Text Available In this study one azo dye "Congo red", two triphenymethane dyes "Crystal violet" and "Methylene blue" have been selected for biodegradation using three soil fungal isolates A. niger, F. oxysporum and T. lignorum. These fungal strains were isolated from field soil. Three methods were selected for biodegradation, viz. agar overlay and liquid media methods; stationary and shaking conditions at 25°C. The experiment was conducted for 10 days and the results were periodically observed. Aspergillus niger decolorized maximum Congo red (74.07% followed by Crystal violet (33.82% and Methylene blue (22.44% under liquid medium (stationary condition. Whereas, under same conditions, T. lignorum decolorized maximum crystal violet (92.7%, Methylene blue (48.3% and Congo red (35.25%. Use of T. lignorum as dye bio degrader or decolorizer has been done first time in this study. Fusarium oxysporum performed better under shaking conditions compared to stationary and overlay method. It can be concluded that among soil fungus T. lignorum could be used as efficient dye decolorizer especially for crystal violet and A. niger for Congo red. The excellent performance of T. lignorum and F. oxysporum in the biodegradation of textile dyes of different chemical structures reinforces the potential of these fungi for environmental decontamination similar to white rot fungi.

  14. Requalification of a Brazilian Trichoderma Collection and Screening of Its Capability to Decolourise Real Textile Effluent.

    Science.gov (United States)

    Silva Lisboa, Dianny; Santos, Cledir; Barbosa, Renan N; Magalhães, Oliane; Paiva, Laura M; Moreira, Keila A; Lima, Nelson; Souza-Motta, Cristina M

    2017-04-01

    Water contamination with large amounts of industrial textile coloured effluents is an environmental concern. For the treatment of textile effluents, white-rot fungi have received extensive attention due to their powerful capability to produce oxidative (e.g., ligninolytic) enzymes. In addition, other groups of fungi, such as species of Aspergillus and Trichoderma , have also been used for textile effluents treatment. The main aim of the present study was to requalify a Brazilian Trichoderma culture collection of 51 Trichoderma strains, isolated from different sources in Brazil and preserved in the oldest Latin-American Fungal Service Culture Collection, The Micoteca URM WDCM 804 (Recife, Brazil). Fungal isolates were re-identified through a polyphasic approach including macro- and micro-morphology and molecular biology, and screened for their capability to decolourise real effluents collected directly from storage tanks of a textile manufacture. Trichoderma atroviride URM 4950 presented the best performance on the dye decolourisation in real textile effluent and can be considered in a scale-up process at industrial level. Overall, the potential of Trichoderma strains in decolourising real textile dye present in textile effluent and the production of the oxidative enzymes Lac, LiP and MnP was demonstrated. Fungal strains are available in the collection e-catalogue to be further explored from the biotechnological point of view.

  15. Degradation of aromatic amines in textile-dyeing sludge by combining the ultrasound technique with potassium permanganate treatment.

    Science.gov (United States)

    Liang, Jieying; Ning, Xun-An; An, Taicheng; Sun, Jian; Zhang, Yaping; Wang, Yujie

    2016-08-15

    This paper reports, for the first time, a combined technique of ultrasound (US) with KMnO4 degradation of aromatic amines in a textile-dyeing sludge. The reaction mechanisms and the degradation kinetics of aromatic amines at various operating parameters (KMnO4 dosage, US power density and pH) were systematically examined by the combined system of US-KMnO4. The results indicated that there was a synergistic effect between US and KMnO4, as US greatly enhanced KMnO4 in the degradation of aromatic amines and exhibited apparent sludge disintegration and separated pollutants from the sludge. In addition to accelerating the Mn(VII) reaction with pollutants in the filtrate, US also caused Mn(VII) to enter the porous sludge and sufficiently facilitated the reaction of the strongly absorbed aromatic amines. The combined treatment of US-KMnO4 was effective in the degradation of aromatic amines in textile-dyeing sludge. On average, 58.7% of monocyclic anilines, 88.3% of other forms of aromatic amines, and 24.0% of TOC were removed under the optimal operating conditions of a KMnO4 dosage of 12mM, an US power density of 1.80W/cm(3) and pH 5. The present study proposed US-KMnO4 treatment as a practical method for the disposal of aromatic amines in textile-dyeing sludge. Copyright © 2016 Elsevier B.V. All rights reserved.

  16. Evaluating efficiency levels comparatively: Data envelopment analysis application for Turkish textile and apparel industry

    Directory of Open Access Journals (Sweden)

    Canan Saricam

    2012-12-01

    Full Text Available Purpose: The purpose of this study is to show the usage of DEA in efficiency measurement.Design/methodology/approach: The efficiencies of textile and apparel companies were analyzed by input-oriented DEA model under variable return to scale assumption. The textile and apparel companies quoted in Istanbul Stock Exchange for the period 2003 and 2008 were evaluated in terms of efficiency level providing a framework for the calculation of input excesses and output shortages.Findings: The analysis revealed that the average efficiency scores of the apparel industry was higher than the textile industry and two industries together. The companies in the apparel industry should overcome the lack of insufficient level of exports whereas the textile industry needs to increase gross value added in order to be more efficient.Research limitations/implications: Because of missing data, four companies from textile industry and one company from apparel industry were ignored although they took place in the records of Istanbul Stock Exchange.Practical implications: This study provided a framework for DEA application in determination and comparison of efficiency performance in an industry level.Originality/value: Selecting the groups compared as textile industry, apparel industry and the two industries in general allowed discussing the comparative efficiencies of two industries eliminating the industry specific pitfalls.

  17. Optimisation of the recovery of carotenoids from tomato processing wastes: application on textile dyeing and assessment of its antioxidant activity.

    Science.gov (United States)

    Baaka, Noureddine; El Ksibi, Imen; Mhenni, Mohamed Farouk

    2017-01-01

    The present study has been focused on the extraction of natural pigments from tomato industry waste. At first, different solvents and solvents mixture were compared to determine which one is the best for extracting carotenoids compounds from tomato by-products. A mixture of hexane and acetone gave the highest carotenoids extraction yield among the others examined. The extraction conditions were optimised using a five-level-five-factor central composite design. Under optimal conditions, solvent solid ratio 90, hexane percentage in the solvent mixture 60, extraction duration 50, number of extractions 4 and extraction temperature 35 °C, the yield of carotenoids was 80.7 μg/g. The coloured extract of tomato by-products was applied on textile fabrics to investigate the dyeing characteristics and antioxidant activities. The results indicate that extract can be applied on textile fabrics (wool, silk and polyamide) to produce coloured clothing with acceptable antioxidant properties.

  18. Potential of Basidiomycetous Fungi Isolated from Gunung Barus Forest North Sumatera in Decolorization of Wastewater of Textile Industry

    Science.gov (United States)

    Munir, E.; Priyani, N.; Suryanto, D.; Naimah, Z.

    2017-03-01

    A study of basidiomycetous fungi in decolorization of wastewater of textile industry has been started in our laboratory. The objective of this study was to obtain potential isolates and to examine their decolorization acitity. The fungi were isolated from local forest, Gunung Barus Forest, in North Sumatera and screened their ligninolytic activity qualitatively by bavendam method and the waste was obtained from local textile industry in Medan. Nineteen fungal isolates grew on plate agar medium containing 100% of waste supplemented with 2% glucose, and 6 of those exhibited good growth when glucose in the media was reduced to 1%. Surprisingly, these six potential isolates grew, although relatively at lower rate, when glucose was not included in the media. Meanwhile, there was no substantial decolorization of media could be observed on all plates cultures. Analyses of decolorization on liquid condition containing 25% of wastewater and no glucose showed that fungal grew at the bottom culture flask. All 6 isolates exhibited decolorization activity. Interestingly, mass of mycelia growth at the bottom absorbed dyes and dissolved suspended solid which was seemingly separated from very clean solution medium surrounding. These results indicated that the cultures utilized carbon source from waste and the extracellular matrixes produced by fungal isolates might involve in decolorization of textile wastewater.

  19. Episodes and Epochs in the Evolution of Danish Textile and Fashion Industry

    DEFF Research Database (Denmark)

    Boujarzadeh, Behnam; Turcan, Romeo V.; Dholakia, Nikhilesh

    2016-01-01

    In this paper we explore the emergence and evolution of industries. Specifically we investigate the episodes and epochs in the emergence and evolution of Danish Textile and Fashion Industry. We collected historical data on Danish Textile and Fashion Industry between 1945 and 2015. We employ radar...

  20. Modified magnetite nanoparticles with cetyltrimethylammonium bromide as superior adsorbent for rapid removal of the disperse dyes from wastewater of textile companies

    Directory of Open Access Journals (Sweden)

    Ali Asghar Rajabi

    2016-01-01

    Full Text Available This paper reports application of cetyltrimethylammonium bromide (CTAB coated magnetite nanoparticles (Fe3O4 NPs as a novel adsorbent for removal of two types of disperse dyes, including disperse red 167, and disperse blue 183, from wastewater of textile companies. The effect of parameters including type of surfactant, pH of solution, surfactant concentration, and amount of salt, was investigated and optimized. The obtained results showed that the ratio of initial dye concentration to CTAB amounts has critical effect on removal processes so that removal efficiencies higher than 95% can be achieved even at high concentration of dyes as high as 500 mg l-1 when the ratio is optimum. Removal of dyes is very fast, and equilibrium is reached at times less than 10 min even for high concentration of the dyes. Very high adsorbent capacity (as high as 2000 mg g-1 was yielded for maximum tested concentration of the dyes (500 mg g-1. The obtained result was confirmed by thermogravimetric analysis data. This study showed that CTAB coated Fe3O4 NPs is a very efficient adsorbent for removal of dyes from wastewater of textile companies and has high capacity under optimum conditions.

  1. Bio sorption of Reactive Dye from Textile Wastewater by Non-viable Biomass of Aspergillus niger and Spirogyra sp

    International Nuclear Information System (INIS)

    Khalaf, M.A.

    2008-01-01

    The Potential of Aspergillus niger fungus and Spirogyra sp., a fresh water green algae, was investigated as a bio sorbents for removal of reactive dye (Synazol) from its multi-component textile wastewater. Pre-treatment of fungal and algal biomass with autoclaving increased the removal of dye more than that pre-treated with gamma-irradiation. The heat dried autoclaved biomass for the 2 organisms exhibited maximum dye removal at ph 3, temperature 30 degree C and 8 g/l (w/v) biomass conc. after 18 h contact time. The results showed that the non-viable biomass possessed high stability and efficiency of dye removal over 3 repeated batches

  2. Gas turbine cogeneration plant for textile dyeing plant in Italy

    International Nuclear Information System (INIS)

    Tonetti, P.E.

    1991-01-01

    This paper reports the information (i.e., notes on specific plant component weaknesses and defects, e.g., exchanger tube fouling, improper positioning of temperature probes, incorrect choice of flow valves, etc., and relative remedial actions) gained during a one year cogeneration plant debugging campaign at the Colorama textile dyeing plant in Italy. The cogeneration plant consists of a Solar Saturn MK III gas turbine (1,080 kw at terminals, 500 degrees C exhaust gas temperature); a double (steam and hot water) circuit waste heat boiler contemporaneously producing, with 100 degrees C supply water, 4 tonnes/h steam at 5 bars and 9 cubic meters/h of 20 to 80 degrees C hot water; and a 1,470 kVA generator operating at 3 kV connected by a 3kV/15kV transformer to the national grid. The plant is protected against fire by independent halon fire protection systems, one for the gas turbine plant, the other, for the control room. A modem connects the plant control and monitoring system with the firm which supplied the equipment. The plant operator cites an urgent national requirement for trained cogeneration equipment technical consultants and designers in order to better promote the use of innovative cogeneration technology by Italian industry

  3. Treatment of dye house effluents

    International Nuclear Information System (INIS)

    Waheed, S.; Ashraf, C.M.

    1999-01-01

    Environmental considerations play an increasingly important role in processing of textiles. For textile, limits on particular substances have been and are being laid down either by law or as a result of the demands of clothing manufactures. One of the most complex areas in textile processing is textile printing and dyeing. Here, virtually all dye classes are used. In some printing processes such as reactive printing, many of products used end up in the wastewater. A study of the optimisation of wastewater treatment systems and the systematic management of water and the problems of dyeing are reviewed in this article. (author)

  4. A Decolorization Technique with Spent “Greek Coffee” Grounds as Zero-Cost Adsorbents for Industrial Textile Wastewaters

    Science.gov (United States)

    Kyzas, George Z.

    2012-01-01

    In this study, the decolorization of industrial textile wastewaters was studied in batch mode using spent “Greek coffee” grounds (COF) as low-cost adsorbents. In this attempt, there is a cost-saving potential given that there was no further modification of COF (just washed with distilled water to remove dirt and color, then dried in an oven). Furthermore, tests were realized both in synthetic and real textile wastewaters for comparative reasons. The optimum pH of adsorption was acidic (pH = 2) for synthetic effluents, while experiments in free pH (non-adjusted) were carried out for real effluents. Equilibrium data were fitted to the Langmuir, Freundlich and Langmuir-Freundlich (L-F) models. The calculated maximum adsorption capacities (Qmax) for total dye (reactive) removal at 25 °C was 241 mg/g (pH = 2) and 179 mg/g (pH = 10). Thermodynamic parameters were also calculated (ΔH0, ΔG0, ΔS0). Kinetic data were fitted to the pseudo-first, -second and -third order model. The optimum pH for desorption was determined, in line with desorption and reuse analysis. Experiments dealing the increase of mass of adsorbent showed a strong increase in total dye removal.

  5. STRATEGIES FOR ADVANCING SMART ECONOMIC DEVELOPMENT OF THE TEXTILE INDUSTRY IN ROMANIA

    Directory of Open Access Journals (Sweden)

    Mădălina Opriș (Stănilă

    2016-09-01

    Full Text Available This paper examines the evolution of the textile industry, from global to national level. Statistical analysis emphasis is placed on the national market characterization of textiles and clothing, which will be the basis in designing future policies and marketing strategies within this industry. To develop the textile industry in Romania, a long term strategy that will focus on local resources will have to be developed, well-trained specialists, customer orientation, reduce mass production and increase the quality of the products, these are the main directions.

  6. Evaluation of the biological treatment for removal of color indigo textile industrial waste water by a microbial consortium in fluidized bed

    International Nuclear Information System (INIS)

    Quintero, Luz; Cardona, Santiago

    2011-01-01

    Water has been one of the most affected by industrialization and the development of the textile sector. Medellin is the fashion capital of Colombia and city daily use cleaners dedicated to clothing indigo dyeing. They are major consumers of ground and drinking water. Water is used with minimal consciousness, its increased raw material and which generates high monthly costs. This study was built (RLF) fluidized bed reactor. The anthracite was used as support material for investigating the efficiency removed of the chemical oxygen demand (COD), demand biochemical oxygen (BOD) and color of simulated textile wastewater. Following studies at laboratory scale were initially made to prepare the immobilization of microorganisms in the middle of solid support and periods of start-up and operation of the pilot plant testing: bioaugmentating and bioadaptacion seed taken from textile effluent and removal of color in discontinuous reactor. The results indicated that it is possible to achieve aerobic treatment of textile waste water after obtaining an inoculum adapted to sources of carbon of surfactants, and Indigo.

  7. Industrial scale salt-free reactive dyeing of cationized cotton fabric with different reactive dye chemistry.

    Science.gov (United States)

    Nallathambi, Arivithamani; Venkateshwarapuram Rengaswami, Giri Dev

    2017-10-15

    Dyeing of knitted cotton goods in the industry has been mostly with reactive dyes. Handling of salt laden coloured effluent arising out of dyeing process is one of the prime concerns of the industry. Cationization of cotton is one of the effective alternative to overcome the above problem. But for cationization to be successful at industrial scale it has to be carried out by exhaust process and should be adoptable for the various dye chemistries currently practiced in the industry. Hence, in the present work, industrial level exhaust method of cationization process was carried out with concentration of 40g/L and 80g/L. The fabrics were dyed with dyes of three different dye chemistry and assessed for its dyeing performance without the addition of salt. Dye shades ranging from medium to extra dark shades were produced without the addition of salt. This study will provide industries the recipe that can be adopted for cationized cotton fabric for the widely used reactive dyes at industrial level. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. Application of solar energy to the supply of hot water for textile dyeing. Final report, CDRL/PA 10

    Energy Technology Data Exchange (ETDEWEB)

    None

    1977-09-01

    The design plan for a solar process hot water system for a textile dye beck at Riegel Textile Corporation's LaFrance, South Carolina, facilities is presented. The solar system consists of 396 GE model TC 100 evacuated tube collector modules arranged in a ground mounted array with a total collector area of 6680 square feet. The system includes an 8000-gallon hot water storage tank. Systems analyses, specification sheets, performance data, and an economic evaluation of the proposed system are presented. (WHK)

  9. Electrochemical oxidation of bio-refractory dye in a simulated textile industry effluent using DSA electrodes in a filter-press type FM01-LC reactor.

    Science.gov (United States)

    Rodríguez, Francisca A; Mateo, María N; Aceves, Juan M; Rivero, Eligio P; González, Ignacio

    2013-01-01

    This work presents a study on degradation of indigo carmine dye in a filter-press type FM01-LC reactor using Sb2O5-doped Ti/IrO2-SnO2 dimensionally stable anode (DSA) electrodes. Micro- and macroelectrolysis studies were carried out using solutions of 0.8 mM indigo carmine in 0.05 M NaCl, which resemble blue denim laundry industrial wastewater. Microelectrolysis results show the behaviour of DSA electrodes in comparison with the behaviour of boron-doped diamond (BDD) electrodes. In general, dye degradation reactions are carried out indirectly through active chlorine generated on DSA, whereas in the case of BDD electrodes more oxidizing species are formed, mainly OH radicals, on the electrode surface. The well-characterized geometry, flow pattern and mass transport of the FM01-LC reactor used in macroelectrolysis experiments allowed the evaluation of the effect of hydrodynamic conditions on the chlorine-mediated degradation rate. Four values of Reynolds number (Re) (93, 371, 464 and 557) at four current densities (50, 100, 150 and 200 A/m2) were tested. The results show that the degradation rate is independent of Re at low current density (50 A/m2) but becomes dependent on the Re at high current density (200 A/m2). This behaviour shows the central role of mass transport and the reactor parameters and design. The low energy consumption (2.02 and 9.04 kWh/m3 for complete discolouration and chemical oxygen demand elimination at 50 A/m2, respectively) and the low cost of DSA electrodes compared to BDD make DSA electrodes promising for practical application in treating industrial textile effluents. In the present study, chlorinated organic compounds were not detected.

  10. Physicochemical assessment of industrial textile effluents of Punjab (India)

    Science.gov (United States)

    Bhatia, Deepika; Sharma, Neeta Raj; Kanwar, Ramesh; Singh, Joginder

    2018-06-01

    Urbanization and industrialization are generating huge quantities of untreated wastewater leading to increased water pollution and human diseases in India. The textile industry is one of the leading polluters of surface water and consumes about 200-270 tons of water to produce 1 ton of textile product. The primary objective of the present study was to investigate the pollution potential of textile industry effluent draining into Buddha Nallah stream located in Ludhiana, Punjab (India), and determine the seasonal variation in physicochemical parameters (pH, water temperature, total dissolved solids, total suspended solids, biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of Buddha Nallah water. During summer months, for Site 1 and Site 2, the value of pH was in the alkaline range of 8.78 ± 0.47 and 8.51 ± 0.41, respectively. The values of pH in the rainy season were found to be in the range of 7.38 ± 0.58 and 7.11 ± 0.59 for Site 1 and Site 2, respectively. In the autumn and winter seasons, the average pH values were found to be in the range of 8.58 ± 1.40 and 8.33 ± 0.970, respectively. The maximum mean temperature in summer was recorded as 41.16 ± 4.99 °C, and lowest mean temperature in winter was recorded as 39.25 ± 2.25 °C at Site 2. The suspended solids were found to be highest (143.5 ± 75.01 and 139.66 ± 71.87 mg/L) in autumn for both the sites and lowest (86.50 + 15.10 mg/L) in the rainy season for Site 1. The values of BOD and COD of the textile effluent of both sites during all the seasons ranged from 121-580 to 240-990 mg/L, respectively, much higher than WHO water quality standard of 30 mg/L for BOD and 250 mg/L for COD. The present study deals with the collection of textile industry effluent and its characterization to find out the physicochemical load being drained by the effluent generated from textile industries, on the natural wastewater streams.

  11. Requalification of a Brazilian Trichoderma Collection and Screening of Its Capability to Decolourise Real Textile Effluent

    Science.gov (United States)

    Silva Lisboa, Dianny; Santos, Cledir; Barbosa, Renan N.; Magalhães, Oliane; Paiva, Laura M.; Moreira, Keila A.; Lima, Nelson; Souza-Motta, Cristina M.

    2017-01-01

    Water contamination with large amounts of industrial textile coloured effluents is an environmental concern. For the treatment of textile effluents, white-rot fungi have received extensive attention due to their powerful capability to produce oxidative (e.g., ligninolytic) enzymes. In addition, other groups of fungi, such as species of Aspergillus and Trichoderma, have also been used for textile effluents treatment. The main aim of the present study was to requalify a Brazilian Trichoderma culture collection of 51 Trichoderma strains, isolated from different sources in Brazil and preserved in the oldest Latin-American Fungal Service Culture Collection, The Micoteca URM WDCM 804 (Recife, Brazil). Fungal isolates were re-identified through a polyphasic approach including macro- and micro-morphology and molecular biology, and screened for their capability to decolourise real effluents collected directly from storage tanks of a textile manufacture. Trichoderma atroviride URM 4950 presented the best performance on the dye decolourisation in real textile effluent and can be considered in a scale-up process at industrial level. Overall, the potential of Trichoderma strains in decolourising real textile dye present in textile effluent and the production of the oxidative enzymes Lac, LiP and MnP was demonstrated. Fungal strains are available in the collection e-catalogue to be further explored from the biotechnological point of view. PMID:28368305

  12. A REPRISE OF SUPPLY CHAIN MANAGEMENT IN CONSANGUINITY TO THE INDUSTRY OF TEXTILE

    OpenAIRE

    Amer RAJPUT; Abdul Hamid ABU BAKAR

    2011-01-01

    This study investigates supply chain management (SCM) literature to categorize it as well as this study particularly explores studies of SCM for textile industry. An analysis is provided for SCM in connection to textile industry. Science Direct, ABI/INFORM Global, EBSCO Host, and Emerald scholarly databases are inspected for SCM studies. It is found that there is lack of agreement for a sole definition of SCM; moreover, textile industry is being neglected for investigation of SCM. However, ca...

  13. High flux and antifouling properties of negatively charged membrane for dyeing wastewater treatment by membrane distillation

    KAUST Repository

    An, Alicia Kyoungjin; Guo, Jiaxin; Jeong, Sanghyun; Lee, Eui-Jong; Tabatabai, S. Assiyeh Alizadeh; Leiknes, TorOve

    2016-01-01

    This study investigated the applicability of membrane distillation (MD) to treat dyeing wastewater discharged by the textile industry. Four different dyes containing methylene blue (MB), crystal violet (CV), acid red 18 (AR), and acid yellow 36 (AY

  14. Remediation of textile effluents by membrane based treatment techniques: a state of the art review.

    Science.gov (United States)

    Dasgupta, Jhilly; Sikder, Jaya; Chakraborty, Sudip; Curcio, Stefano; Drioli, Enrico

    2015-01-01

    The textile industries hold an important position in the global industrial arena because of their undeniable contributions to basic human needs satisfaction and to the world economy. These industries are however major consumers of water, dyes and other toxic chemicals. The effluents generated from each processing step comprise substantial quantities of unutilized resources. The effluents if discharged without prior treatment become potential sources of pollution due to their several deleterious effects on the environment. The treatment of heterogeneous textile effluents therefore demands the application of environmentally benign technology with appreciable quality water reclamation potential. These features can be observed in various innovative membrane based techniques. The present review paper thus elucidates the contributions of membrane technology towards textile effluent treatment and unexhausted raw materials recovery. The reuse possibilities of water recovered through membrane based techniques, such as ultrafiltration and nanofiltration in primary dye houses or auxiliary rinse vats have also been explored. Advantages and bottlenecks, such as membrane fouling associated with each of these techniques have also been highlighted. Additionally, several pragmatic models simulating transport mechanism across membranes have been documented. Finally, various accounts dealing with techno-economic evaluation of these membrane based textile wastewater treatment processes have been provided. Copyright © 2014 Elsevier Ltd. All rights reserved.

  15. Identification of natural red and purple dyes on textiles by Fiber-optics Reflectance Spectroscopy.

    Science.gov (United States)

    Maynez-Rojas, M A; Casanova-González, E; Ruvalcaba-Sil, J L

    2017-05-05

    Understanding dye chemistry and dye processes is an important issue for studies of cultural heritage collections and science conservation. Fiber Optics Reflectance Spectroscopy (FORS) is a powerful technique, which allows preliminary dye identification, causing no damage or mechanical stress on the artworks subjected to analysis. Some information related to specific light scattering and absorption can be obtained in the UV-visible and infrared range (300-1400nm) and it is possible to discriminate the kind of support fiber in the near infrared region (1000-2500nm). The main spectral features of natural dye fibers samples, such as reflection maxima, inflection points and reflection minima, can be used in the differentiation of various red natural dyes. In this work, a set of dyed references were manufactured following Mexican recipes with red dyes (cochineal and brazilwood) in order to determine the characteristic FORS spectral features of fresh and aged dyed fibers for their identification in historical pieces. Based on these results, twenty-nine indigenous textiles belonging to the National Commission for the Development of Indigenous People of Mexico were studied. Cochineal and brazilwood were successfully identified by FORS in several pieces, as well as the mixture of cochineal and indigo for purple color. Copyright © 2017 Elsevier B.V. All rights reserved.

  16. The Energy Footprint of China’s Textile Industry: Perspectives from Decoupling and Decomposition Analysis

    Directory of Open Access Journals (Sweden)

    Laili Wang

    2017-09-01

    Full Text Available Energy is the essential input for operations along the industrial manufacturing chain of textiles. China’s textile industry is facing great pressure on energy consumption reduction. This paper presents an analysis of the energy footprint (EFP of China’s textile industry from 1991 to 2015. The relationship between EFP and economic growth in the textile industry was investigated with a decoupling index approach. The logarithmic mean Divisia index approach was applied for decomposition analysis on how changes in key factors influenced the EFP of China’s textile industry. Results showed that the EFP of China’s textile industry increased from 41.1 Mt in 1991 to 99.6 Mt in 2015. EFP increased fastest in the period of 1996–2007, with an average annual increasing rate of 7.7 percent, especially from 2001 to 2007 (8.5 percent. Manufacture of textile sector consumed most (from 58 percent to 76 percent of the energy among the three sub-sectors, as it has lots of energy-intensive procedures. EFP and economic growth were in a relative decoupling state for most years of the researched period. Their relationship showed a clear tendency toward decoupling. Industrial scale was the most important factor that led to the increase of EFP, while decreasing energy intensity contributed significantly to reducing the EFP. The promoting effect of the factors was larger than the inhibiting effect on EFP in most years from 1991 to 2015.

  17. A REPRISE OF SUPPLY CHAIN MANAGEMENT IN CONSANGUINITY TO THE INDUSTRY OF TEXTILE

    Directory of Open Access Journals (Sweden)

    Amer RAJPUT

    2011-01-01

    Full Text Available This study investigates supply chain management (SCM literature to categorize it as well as this study particularly explores studies of SCM for textile industry. An analysis is provided for SCM in connection to textile industry. Science Direct, ABI/INFORM Global, EBSCO Host, and Emerald scholarly databases are inspected for SCM studies. It is found that there is lack of agreement for a sole definition of SCM; moreover, textile industry is being neglected for investigation of SCM. However, categories of SCM are described in a descending order from most studied categories to least studied categories. There is a void of a sole definition for SCM; therefore, a comprehensive definition of SCM is suggested from pertinent literature. Moreover, research gaps are identified for future research of SCM particularly for textile industry.

  18. Investigation of crimson-dyed fibres for a new approach on the characterization of cochineal and kermes dyes in historical textiles

    Energy Technology Data Exchange (ETDEWEB)

    Serrano, Ana, E-mail: ana.serrano@fcsh.unl.pt [Sector Research Movable Heritage, Cultural Heritage Agency of the Netherlands (RCE), P.O. Box 1600, 3800 BP, Amersfoort (Netherlands); CHAM (Portuguese Centre for Global History), Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa e Universidade dos Açores, Avenida de Berna, 1069-061 Lisboa (Portugal); Doel, Andre van den, E-mail: h.vandendoel@student.ru.nl [Sector Research Movable Heritage, Cultural Heritage Agency of the Netherlands (RCE), P.O. Box 1600, 3800 BP, Amersfoort (Netherlands); Analytical Chemistry, IMM, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen (Netherlands); Bommel, Maarten van, E-mail: m.r.vanbommel@uva.nl [Programme Conservation and Restoration of Cultural Heritage, University of Amsterdam, Johannes Vermeerplein 1, 1071 DV, Amsterdam (Netherlands); Hallett, Jessica, E-mail: hallj@fcsh.unl.pt [CHAM (Portuguese Centre for Global History), Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa e Universidade dos Açores, Avenida de Berna, 1069-061 Lisboa (Portugal); Joosten, Ineke, E-mail: i.joosten@cultureelerfgoed.nl [Sector Research Movable Heritage, Cultural Heritage Agency of the Netherlands (RCE), P.O. Box 1600, 3800 BP, Amersfoort (Netherlands); Berg, Klaas J. van den, E-mail: k.van.den.berg@cultureelerfgoed.nl [Sector Research Movable Heritage, Cultural Heritage Agency of the Netherlands (RCE), P.O. Box 1600, 3800 BP, Amersfoort (Netherlands)

    2015-10-15

    The colorant behaviour of cochineal and kermes insect dyes in 141 experimentally-dyed and 28 artificially-aged samples of silk and wool was investigated using ultra-high performance liquid chromatography coupled to photodiode array detector (UHPLC-PDA), liquid chromatography electrospray ionisation mass spectrometry (LC-ESI-MS) and image scanning electron microscopy – energy dispersive X-ray spectroscopy (SEM-EDX). Partial-least squares discriminant analysis (PLS-DA) was then used to model the acquired UHPLC-PDA data and assess the possibility of discriminating cochineal insect species, as well as their correspondent dyed and aged reference fibres. The resulting models helped to characterize a set of 117 red samples from 95 historical textiles, in which UHPLC-PDA analyses have reported the presence of cochineal and kermes insect dyes. Analytical investigation of the experimentally-dyed and artificially-aged fibres has demonstrated that the ratio of compounds in the insects dye composition can change, depending on the dyeing conditions applied and the type of fibres used. Similarities were observed when comparing the UHPLC-MS and SEM-EDX results from the dyed and aged references with the historical samples. This was verified with PLS-DA models of the chromatographic data, facilitating the classification of the cochineal species present in the historical samples. The majority of these samples were identified to contain American cochineal, which is in agreement with historical and dye identification literature that describe the impact of this dyestuff into European and Asian dyeing practices, after the Iberian Expansion in the 16th century. The analytical results emphasize the importance of using statistical data interpretation for the discrimination of cochineal dyes, besides qualitative and quantitative evaluation of chromatograms. Hence, the combination of UHPLC-PDA with a statistical classification method, such as PLS-DA, has been demonstrated to be an advisable

  19. Investigation of crimson-dyed fibres for a new approach on the characterization of cochineal and kermes dyes in historical textiles

    International Nuclear Information System (INIS)

    Serrano, Ana; Doel, Andre van den; Bommel, Maarten van; Hallett, Jessica; Joosten, Ineke; Berg, Klaas J. van den

    2015-01-01

    The colorant behaviour of cochineal and kermes insect dyes in 141 experimentally-dyed and 28 artificially-aged samples of silk and wool was investigated using ultra-high performance liquid chromatography coupled to photodiode array detector (UHPLC-PDA), liquid chromatography electrospray ionisation mass spectrometry (LC-ESI-MS) and image scanning electron microscopy – energy dispersive X-ray spectroscopy (SEM-EDX). Partial-least squares discriminant analysis (PLS-DA) was then used to model the acquired UHPLC-PDA data and assess the possibility of discriminating cochineal insect species, as well as their correspondent dyed and aged reference fibres. The resulting models helped to characterize a set of 117 red samples from 95 historical textiles, in which UHPLC-PDA analyses have reported the presence of cochineal and kermes insect dyes. Analytical investigation of the experimentally-dyed and artificially-aged fibres has demonstrated that the ratio of compounds in the insects dye composition can change, depending on the dyeing conditions applied and the type of fibres used. Similarities were observed when comparing the UHPLC-MS and SEM-EDX results from the dyed and aged references with the historical samples. This was verified with PLS-DA models of the chromatographic data, facilitating the classification of the cochineal species present in the historical samples. The majority of these samples were identified to contain American cochineal, which is in agreement with historical and dye identification literature that describe the impact of this dyestuff into European and Asian dyeing practices, after the Iberian Expansion in the 16th century. The analytical results emphasize the importance of using statistical data interpretation for the discrimination of cochineal dyes, besides qualitative and quantitative evaluation of chromatograms. Hence, the combination of UHPLC-PDA with a statistical classification method, such as PLS-DA, has been demonstrated to be an advisable

  20. Removal of Acid Black 194 dye from water by electrocoagulation with aluminum anode.

    Science.gov (United States)

    Vidal, Jorge; Villegas, Loreto; Peralta-Hernández, Juan M; Salazar González, Ricardo

    2016-01-01

    Application of an electrocoagulation process (EC) for the elimination of AB194 textile dye from synthetic and textile wastewater (effluent) contaminated with AB194 dye, was carried out using aluminum anodes at two different initial pH values. Tafel studies in the presence and absence of the dye were performed. The aluminum species formed during the electrolysis were quantified by atomic absorption, and the flocs formed in the process were analyzed by HPLC-MS. Complete removal of AB194 from 1.0 L of solution was achieved applying low densities current at initial pH values of 4.0 and 8.0. The removal of AB194 by EC was possible with a short electrolysis time, removing practically 100% of the total organic carbon content and chemical oxygen demand. The final result was completely discolored water lacking dye and organic matter. An effluent contaminated with 126 mg L(-1) AB194 dye from a Chilean textile industry was also treated by EC under optimized experimental conditions, yielding discolored water and considerably decreasing the presence of organic compounds (dye + dyeing additives), with very low concentrations of dissolved Al(3+). Analysis of flocs showed the presence of the original dye without changes in its chemical structure.

  1. Offshoring in textile industry

    OpenAIRE

    MONTÓN GARCÍA, JORGE

    2015-01-01

    [ EN] This project is about offshoring in the textile industry, focusing in the rights violated in this process, this concept can be defined as the moving of various operations of a company to another country for reasons such as lower labor costs or more favorable economic conditions in that other country. The project describes the evolution of offshoring, which started in 1960’s and has continued since then; it was characterized primarily by the transferring of factories from the develope...

  2. Exploiting the efficacy of Lysinibacillus sp. RGS for decolorization and detoxification of industrial dyes, textile effluent and bioreactor studies.

    Science.gov (United States)

    Saratale, Rijuta G; Saratale, Ganesh D; Govindwar, Sanjay P; Kim, Dong S

    2015-01-01

    Complete decolorization and detoxification of Reactive Orange 4 within 5 h (pH 6.6, at 30°C) by isolated Lysinibacillus sp. RGS was observed. Significant reduction in TOC (93%) and COD (90%) was indicative of conversion of complex dye into simple products, which were identified as naphthalene moieties by various analytical techniques (HPLC, FTIR, and GC-MS). Supplementation of agricultural waste extract considered as better option to make the process cost effective. Oxido-reductive enzymes were found to be involved in the degradation mechanism. Finally Loofa immobilized Lysinibacillus sp. cells in a fixed-bed bioreactor showed significant decolorization with reduction in TOC (51 and 64%) and COD (54 and 66%) for synthetic and textile effluent at 30 and 35 mL h(-1) feeding rate, respectively. The degraded metabolites showed non-toxic nature revealed by phytotoxicity and photosynthetic pigments content study for Sorghum vulgare and Phaseolus mungo. In addition nitrogen fixing and phosphate solubilizing microbes were less affected in treated wastewater and thus the treated effluent can be used for the irrigation purpose. This work could be useful for the development of efficient and ecofriendly technologies to reduce dye content in the wastewater to permissible levels at affordable cost.

  3. UV/Fenton photo-oxidation of Drimarene Dark Red (DDR) containing textile-dye wastewater

    Science.gov (United States)

    Hudaya, T.; Anthonios, J.; Septianto, E.

    2016-11-01

    Textile dye wastewater contains organic pollutants which are non-biodegradable, characterized by low BOD/COD ratio of typically Advanced Oxidation Processes (AOPs). One of the AOPs method which is the UV/H2O2/Fe2+ (or UV/Fenton) offers not only relatively low cost but also quite effective (in terms of color removal and reaction time) treatment. This particular research aimed to optimize the conditions of UV/Fenton photo-oxidation process for Drimarene Dark Red containing textile- dye wastewater. The two main operating conditions to be optimized were the initial concentration of H2O2 ranged between 0.022-0.078 %-w and the mol ratio of Fe2+: H2O2 was varied from 1: 13 up to 1: 45, using the Central Composite Design experimental matrix. The photo-oxidation was carried out at the optimum pH of 3 from some previous experiments. The best processing conditions of the photo-oxidation of Drimarene Dark Red (DDR) were found at the initial concentration of H2O2 at 0.050%-w and the mole ratio Fe2+: H2O2 of 1: 22. Under these conditions, the measured 2nd order pseudo-rate constantwas 0.021 M-1.min-1. The DDR color removal of 90% was surprisingly achievable within only 10 minutes reaction time.

  4. Advanced treatments for the removal of a textile dye; Tratamientos avanzados para la remocion de un colorante de origen textil

    Energy Technology Data Exchange (ETDEWEB)

    Almazan S, P. T.

    2016-07-01

    In this work, the remove a dye from aqueous solution and the treatment of textile wastewater using natural and iron and copper modified materials and advanced oxidation by Fenton and photo-Fenton heterogeneous processes are presented. Clay and activated carbon were modified using Fe and Cu electrodes at ph values of 7 and 2 respectively. The materials were characterized by scanning electronic microscopy (Sem), electron X-ray dispersive spectroscopy (EDS), X-ray diffraction and specific area (Bet), the optimum ph for clay modifications with Fe and Cu was 7, whereas for copper modified activated carbon was 2, because de elemental analysis indicated that under the above conditions the content of evaluated metals is highest. The specific area for natural and iron and copper modified clay samples was 5.97, 131.30 and 78.44 m{sup 2}/g, whereas for natural and copper modified activated carbon at ph 2 was 654.85 and 647.61 m{sup 2}/g. Dye and wastewater used in this study were obtained from a laundry where jeans are manufactured in Almoloya del Rio in Mexico State. Dye was characterized by infrared spectrophotometry and UV-Vis and it was compared with a standard of potassium indigo trisulfonate and it was observed that both spectra were identical, whereby the dye used in this study is an indigo dye with a maximum absorption band at 591 nm. The characterization of wastewater shows a low biodegradability index (0.25) indicating the presence of non-biodegradability organic matter, and a high concentration of phosphorous was found (93.7 mg/L). A compound parabolic concentrator (CPC-2D) was built to concentrate UV radiation from sunlight and applied in photo-Fenton heterogeneous process obtaining concentrated UV-A and UV-B radiation of 54.29±0.71 and 1.65±0.37 W/m{sup 2} respectively. Iron modified clay (Mt-Fe-7) and copper modified activated carbon (Ac-Cu-2) was used as catalyst in the photo-Fenton process with hydrogen peroxide. The results show that using 1.5 g of catalyst

  5. Electron Beam Treatment Plant for Textile Dyeing Wastewater

    International Nuclear Information System (INIS)

    Han, Bumsoo; Kim, Yuri; Choi, Jangseung; Ahn, Sangjun

    2006-01-01

    High positive effect of electron-beam treatment involved into the process of wastewater purification is now well established. The most effective for the purpose seem to be combine methods including both electron beam and any conventional treatment stages, i.e., under conditions when some synergistic effects can take place. Daegu Dyeing Industrial Complex (DDIC) includes about hundred factories occupying the area of 600,000m 2 with 13,000 employees in total. The production requires high consumption of water (90,000m 3 /day), steam, and electric power, being characterized by large amount of highly colored industrial wastewater. Because of increase in productivity and increased assortment of dyes and other chemicals, substantial necessity appears in re-equipment of purification facilities by application of efficient methods of wastewater treatment

  6. Membrane technology and its suitability for treatment of textile waste water in Pakistan

    International Nuclear Information System (INIS)

    Naveed, S.; Bhatti, S.

    2006-01-01

    Membrane technology has wide range of applications in the textile industry. Various types of dyes and chemicals can be recovered from the textile effluent using this technology and a large proportion of wastewater can be reused. Since textile is one of the major industries in Pakistan and it utilizes a huge volume of water, membrane technology can be an efficient and cost-effective method for treating textile effluents. The problem of membrane fouling is also discussed. The suitability of the technology has been assessed. The approach of employing primary treatment methods followed by Coagulation and Reverse Osmosis through Membranes is being recommended. The effectiveness of various types of membranes available in the world needs to be demonstrated for a specific plant. The result of initial studies performed by Aslam et al. Have also been included. (author)

  7. Mixed ZnO-TiO2 Suspended Solution as an Efficient Photocatalyst for Decolonization of a Textile Dye from Waste Water

    Directory of Open Access Journals (Sweden)

    Mohammad Ali Mooji

    2015-03-01

    Full Text Available Introduction: Textile industries produce large volume of colored dye effluents which are toxic and removal of dyes from wastewater is a significant environmental issue. Advanced oxidation process (AOPs is alternative method for the complete degradation many organic pollutants. ZnO and TiO2 are important photocatalysts with high catalytic activity that have attracted much research attention. Material and Methods: Mixed ZnO/TiO2 was prepared with mixing of ZnO and TiO2 (20, 40, 60, 80 % (w/w. 20 mL of dye solution (80 mgL-1 for DB71 containing the appropriate quantity of photocatalyst was magnetically stirred under UV irradiation. Photocatalytic study was carried out to evaluate the effect of UV (400 W, ZnO/TiO2 weight percent (20, 40, 60, 80 % (w/w, pH (2.3 – 9.2, irradiation time of (10 – 70 min, initial dye concentration of (10, 40, 80 mg/L and ZnO/TiO2 dosage of (0.2 – 1.6 g/L on removal of dye. Dye concentration was monitored spectrophotometrically by measuring the dye absorbance at 285 nm. Results: In comparison with TiO2 or ZnO as photocatalyst, mixed photocatalyst (ZnO/TiO2 is more efficient catalyst for degradation of dye under UV irradiation Results show that approximately 90 % of Direct Blue 71 has been eliminated after 70 minutes and optimized condition ((pH = 6.4, ZnO/TiO2 (50% w/w, 1.25 g/L. Experiments showed, the noticeable decolorization of dye solution can be done without any oxidation agent with mixed ZnO/TiO2 photocatalyst.

  8. Prevalence of noise induced hearing loss in textile industries in ...

    African Journals Online (AJOL)

    This cross sectional study measured the prevalence of Noise Induced Hearing Loss (NIHL) in textile industries in Dar Es Salaam city and Morogoro municipality. Data were collected from 125 employees randomly selected from each of the textile factory mill in each region through structured questionnaires and audiogram ...

  9. GLOBALIZATION AND THE COMPETITIVENESS OF THE EUROPEAN TEXTILE AND CLOTHING INDUSTRY

    Directory of Open Access Journals (Sweden)

    Girneata Adriana

    2015-07-01

    Full Text Available The aim of the paper is to analyze the competitiveness of the European textile and clothing industry under the influence of globalization and recent economic crisis. The textile and clothing industry is an important part of the European manufacturing industry, playing a vital role in the economy and social welfare in many regions of Europe. The European textile and clothing industry has undergone significant changes in recent decades due to the technological advances, developments in production costs, the emergence major international competitors and the elimination import quotas after 2005. In response to the competitive challenges, this sector of activity has undertaken a lengthy process of restructuring and modernization. Globalization and technological progress have led to rethinking the strategy of the companies in the industry. In a competitive global market, European organizations producing textiles and garments have as main competitive advantage research and continuous innovation. Using methods of qualitative research, this paper analyses the evolution of the main financial indicators concerning this sector of activity in the period 2007 – 2013, including domestic consumption, turnover, number of employees, number of companies, imports and exports. The globalization of markets, international outsourcing and development of the Internet had a major impact on the structure and dynamics of the textile and clothing industry in Europe, and in particular on small and medium enterprises. Also, relocation, subcontracting and outsourcing of large brands in this domain have contributed significantly to the increase of imports from low-cost countries. A growing number of apparel retailers have emerged on the market, organizing supply chains globally. At the same time, producers have transferred part of their activities to low-cost countries in order to maintain market competitiveness. This was determined by the major differences in salaries across

  10. A VIEW ON THE ROMANIAN TEXTILE INDUSTRY IN THE EUROPEAN CONTEXT

    Directory of Open Access Journals (Sweden)

    GHERGHEL Maria-Ariana

    2016-05-01

    Full Text Available The textile market of the European Union is a highly competitive one, being recognised at an international level as one of the most important players in this domain. An important factor that has led to this achievement was the creation of the EU Single Market, which provided the fundamental principle of free movement of goods. Also, the European legislative acts had a crucial role by aligning national laws regarding textiles. The Romanian textile industry is traditionally well-known for its quality, but in these new circumstances, has to face other forces and to struggle to maintain a certain position. There have been observed decreases in the production of textile products, even thuogh the manpower in Romania is one of the chepest in the European Union. The intense use of the “lohn” system, first considered as a ramp rescue for the textile industry, has contributed to the loss of identity of the Romanian companies. However, there can be identified several means of refreshing this industry, first of all by the awareness of the current situation, and then by having the courage to move forward, to start creating our own brands, to not lose sight of the quality factor and mainly by innovating.

  11. Photodegradation of Acid red 18 dye by BiOI/ZnO nanocomposite: A dataset

    Directory of Open Access Journals (Sweden)

    Sahand Jorfi

    2018-02-01

    Full Text Available Dyes are one of the most important existing pollutants in textile industrial wastewater. These compounds are often toxic, carcinogenic, and mutagenic to living organisms, chemically and photochemically stable, and non-biodegradable. Acid red 18 is one of the azo dyes that are currently used in the textile industries. Photocatalytic degradation offers a great potential as an advanced oxidation process, in this study photocatalytic degradation of Acid red 18 by using BiOI/ZnO nanocomposite was evaluated under visible light irradiation. The influence of most essential parameters such as pH and BiOI/ZnO dosage were studied for optimum conditions. The dye removal efficiency was 85.1% at optimum experimental conditions of pH of 7, and BiOI/ZnO dosage of 1.5 g/L. The data had a good agreement with pseudo first-order kinetic model. Thus, the BiOI/ZnO/UV is an efficient process for dye degradation. Keywords: Photodegradation, Nanocomposite, BiOI/ZnO, Degradation, Dye, Acid red 18

  12. Adsorption of a Textile Dye on Commercial Activated Carbon: A Simple Experiment to Explore the Role of Surface Chemistry and Ionic Strength

    Science.gov (United States)

    Martins, Angela; Nunes, Nelson

    2015-01-01

    In this study, an adsorption experiment is proposed using commercial activated carbon as adsorbent and a textile azo dye, Mordant Blue-9, as adsorbate. The surface chemistry of the activated carbon is changed through a simple oxidation treatment and the ionic strength of the dye solution is also modified, simulating distinct conditions of water…

  13. Efficient photocatalytic decolorization of some textile dyes using Fe ions doped polyaniline film on ITO coated glass substrate

    International Nuclear Information System (INIS)

    Haspulat, Bircan; Gülce, Ahmet; Gülce, Handan

    2013-01-01

    Highlights: • The PANI/Fe film as photocatalyst was used for the first time. • It was possible to modify the surface roughness and wettability of the PANI films. • The photocatalytic decolorization of four dyes has been investigated. • The photocatalytical activity of the PANI matrix was increased by adding Fe ions. -- Abstract: In this study, the photocatalytic decolorization of four commercial textile dyes with different structures has been investigated using electrochemically synthesized polyaniline and Fe ions doped polyaniline on ITO coated glass substrate as photocatalyst in aqueous solution under UV irradiation for the first time. Scanning electron microscopy, atomic force microscopy, FT-IR spectra, UV–vis spectroscopy measurements were used to characterize the electrochemically synthesized polymer film photocatalyst. Film hydrophilicity was assessed from contact angle measurements. The results show that both of the polymer films exhibit good photocatalytic performance. Surprisingly, it was determined that by using Fe(II) ions during polymerization, it is possible to modify the surface roughness and wettability of the produced polyaniline films which favors their photocatalytic activity in water-based solutions. All four of the used dyes (methylene blue, malachite green, methyl orange and methyl red) were completely decolorizated in 90 min of irradiation under UV light by using Fe ions doped polyaniline at the dye concentration of 1.5 × 10 −5 M, while the decolorization of those dyes were between 43% and 83% by using polyaniline as photocatalyst. Hence, it may be a viable technique for the safe disposal of textile wastewater into waste streams

  14. Decolorization and Degradation of Batik Dye Effluent using Ganoderma lucidum

    Science.gov (United States)

    Pratiwi, Diah; Indrianingsih, A. W.; Darsih, Cici; Hernawan

    2017-12-01

    Batik is product of traditional Indonesia culture that developed into a large textile industry. Synthetic dyes which widely used in textile industries including batik. Colour can be removed from wastewater effluent by chemical, physical, and biology methods. Bioremediation is one of the methods that used for processing colored effluent. Isolated White-rot fungi Ganoderma lucidum was used for bioremediation process for batik effluent. G. lucidum was developed by G. lucidum cultivation on centers of mushroom farmer Media Agro Merapi Kaliurang, Yogyakarta. The batik effluent was collected from a private small and medium Batik enterprises located at Petir, Rongkop, Gunungkidul Regency. The aim of the study were to optimize decolorization of Naphtol Black (NB) using G. lucidum. The effect of process parameters like incubation time and dye concentration on dye decolorization and COD degradation was studied. G. lucidum were growth at pH 5-6 and temperature 25°C at various Naphtol Black dye with concentration 20 ppm, 50 ppm, and 100 ppm for 30 day incubation time. The result from this study increased decolorization in line with the increasing of COD degradation. Increasing percentage of decolorization and COD degradation gradually increased with incubation time and dye concentration. The maximum decolorization and COD reduction were found to be 60,53% and 81,03%. G. lucidum had potential to decolorized and degraded COD for NB dye effluent on higher concentration.

  15. Nano-dyeing

    Directory of Open Access Journals (Sweden)

    Ning Cui-Juan

    2016-01-01

    Full Text Available Dyeing nanofibers is a frontier of both modern textile engineering and nanotechnology. This paper suggest a feasible method for dyeing nanofibers with a natural red (Roselle Calyx by bubble electrospinning. Reactive dye (Red S3B and acid dye (Red 2B were also used in the experiment for comparison. The dyeing process was finished during the spinning process.

  16. Decomposition and decoloration of a direct dye by electron beam radiation

    International Nuclear Information System (INIS)

    Vahdat, Ali; Bahrami, S.H.; Arami, M.; Motahari, A.

    2010-01-01

    The wastewaters released by textile industries to the environment contain hazardous compounds like toxic refractory dye stuff at high concentration. In this study, electron beam irradiation-induced decoloration and decomposition of C.I. Direct Black 22 aqueous solutions were investigated. The influences of absorbed doses and initial dye concentration on the percent of decoloration, COD and pH of the solutions are described. The results show that the direct dye solutions can be effectively degraded by electron beam irradiation.

  17. The Productivity and Technical Efficiency of Textile Industry Clusters in India

    Science.gov (United States)

    Bhaskaran, E.

    2013-09-01

    The Indian textile industry is one the largest and oldest sectors in the country and among the most important in the economy in terms of output, investment and employment (E). The sector employs nearly 35 million people and after agriculture, is the second-highest employer in the country. Its importance is underlined by the fact that it accounts for around 4 % of Gross Domestic Product, 14 % of industrial production, 9 % of excise collections, 18 % of E in the industrial sector, and 16 % of the country's total exports (Ex) earnings. For inclusive growth and sustainable development most of the Textile Manufacturers has adopted the Cluster Development Approach. The objective is to study the physical and financial performance, correlation, regression and Data Envelopment Analysis by measuring technical efficiency (Ø), peer weights (λi), input slacks (S-), output slacks (S+) and return to scale of four textile clusters (TCs) namely IchalKaranji Textile Cluster, Maharashtra; Ludhiana Textile Cluster, Punjab; Tirupur Textile Cluster, Tamilnadu and Panipat Textile Cluster, Haryana in India. The methodology adopted is using Data Envelopment Analysis of Output Oriented Banker Charnes Cooper Model by taking number of units (U) and number of E as inputs and sales (S) and Ex in crores as an outputs. The non-zero λi's represents the weights for efficient clusters. The S > 0 obtained for one TC reveals the excess U (S-) and E (S-) and shortage in sales (S+) and Ex (S+). To conclude, for inclusive growth and sustainable development, the inefficient TC should increase their S/turnover and Ex, as decrease in number of enterprises and E is practically not possible. Moreover for sustainable development, the TC should strengthen infrastructure interrelationships, technology interrelationships, procurement interrelationships, production interrelationships and marketing interrelationships to decrease cost, increase productivity and efficiency to compete in the world market.

  18. Locational Factors in the New Textile Industry: Focus on the U.S. South.

    Science.gov (United States)

    Wheeler, James O.

    1998-01-01

    Chronicles the geographic and historical locational changes of the textile industry of the U.S. South. Economics of scope, flexible production, and quality of output characterize the contemporary textile industry. Provides basic geographic content enabling a teacher to develop a unit by applying geography to interpret the past and present. (CMK)

  19. Applied TRIZ in Improving Productivity in Textile Industry

    Directory of Open Access Journals (Sweden)

    Ahmad Aminah

    2017-01-01

    Full Text Available TRIZ is a methodology and a collection of problem solving tools and strategies that has been used in many other fields. Therefore, this paper proposes TRIZ method for improving the productivity in a textile industry. It focuses at the packing department in a textile company situated in Malaysia. The process was monitored and the problem was observed. TRIZ method is applied in this problem using Functional Analysis and trimming method. A comparison between before and after implementation is done in order to evaluate the productivity effectiveness.

  20. Kinetics and thermodynamics of textile dye adsorption from aqueous solutions using babassu coconut mesocarp

    International Nuclear Information System (INIS)

    Vieira, Adriana P.; Santana, Sirlane A.A.; Bezerra, Cicero W.B.; Silva, Hildo A.S.; Chaves, Jose A.P.; Melo, Julio C.P. de; Silva Filho, Edson C. da; Airoldi, Claudio

    2009-01-01

    Extracted babassu coconut (Orbignya speciosa) mesocarp (BCM) was applied as a biosorbent for aqueous Blue Remazol R160 (BR 160), Rubi S2G (R S2G), Red Remazol 5R (RR 5), Violet Remazol 5R (VR 5) and Indanthrene Olive Green (IOG) dye solutions. The natural sorbent was processed batchwise while varying several system parameters such as stirring time, pH and temperature. The interactions were assayed with respect to both pseudo-first-order and second-order reaction kinetics, with the latter the more suitable kinetic model. The maximum adsorption was obtained at pH 1.0 for all dyes due to available anionic groups attached to the structures, which can be justified by pH pzc 6.7 for the biosorbent BCM. The ability of babassu coconut mesocarp to adsorb dyes gave the order R S2G > VR 5 > BR 160 > IOG > RR 5, which data were best fit to Freundlich model, but did not well-adjusted for all dyes. The dye/biopolymer interactions at the solid/liquid interface are all spontaneous as given by free Gibbs energy, with exothermic enthalpic values of -26.1, -15.8, -17.8, -15.8 and -23.7 kJ mol -1 for BR 160, R S2G, RR 5, IOG and VR 5, respectively. In spite of the negative entropic values contribution, the set of thermodynamic data is favorable for all dyes removal. However, the results pointed to the effectiveness of the mesocarp of babassu coconut as a biosorbent for removing textile dyes from aqueous solutions.

  1. Evaluation of toxicity and removal of color in textile effluent treated with electron beam; Avaliacao da toxicidade e remocao da cor de um efluente textil tratado com feixe de eletrons

    Energy Technology Data Exchange (ETDEWEB)

    Morais, Aline Viana de

    2015-07-01

    The textile industry is among the main activities Brazil, being relevant in number of jobs, quantity and diversity of products and mainly by the volume of water used in industrial processes and effluent generation. These effluents are complex mixtures which are characterized by the presence of dyes, surfactants, metal sequestering agents, salts and other potentially toxic chemicals for the aquatic biota. Considering the lack of adequate waste management to these treatments, new technologies are essential in highlighting the advanced oxidation processes such as ionizing radiation electron beam. This study includes the preparation of a standard textile effluent chemical laboratory and its treatment by electron beam from electron accelerator in order to reduce the toxicity and intense staining resulting from Cl. Blue 222 dye. The treatment caused a reduction in toxicity to exposed organisms with 34.55% efficiency for the Daphnia similis micro crustacean and 47.83% for Brachionus plicatilis rotifer at a dose of 2.5 kGy. The Vibrio fischeri bacteria obtained better results after treatment with a dose of 5 kGy showing 57.29% efficiency. Color reduction was greater than 90% at a dose of 2.5 kGy. This experiment has also carried out some preliminary tests on the sensitivity of the D. similis and V. fischeri organisms to exposure of some of the products used in this bleaching and dyeing and two water reuse simulations in new textile processing after the treating the effluent with electron beam. (author)

  2. Some properties of a granular activated carbon-sequencing batch reactor (GAC-SBR) system for treatment of textile wastewater containing direct dyes.

    Science.gov (United States)

    Sirianuntapiboon, Suntud; Sadahiro, Ohmomo; Salee, Paneeta

    2007-10-01

    Resting (living) bio-sludge from a domestic wastewater treatment plant was used as an adsorbent of both direct dyes and organic matter in a sequencing batch reactor (SBR) system. The dye adsorption capacity of the bio-sludge was not increased by acclimatization with direct dyes. The adsorption of Direct Red 23 and Direct Blue 201 onto the bio-sludge was almost the same. The resting bio-sludge showed higher adsorption capacity than the autoclaved bio-sludge. The resting bio-sludge that was acclimatized with synthetic textile wastewater (STWW) without direct dyes showed the highest Direct Blue 201, COD, and BOD(5) removal capacities of 16.1+/-0.4, 453+/-7, and 293+/-9 mg/g of bio-sludge, respectively. After reuse, the dye adsorption ability of deteriorated bio-sludge was recovered by washing with 0.1% sodium dodecyl sulfate (SDS) solution. The direct dyes in the STWW were also easily removed by a GAC-SBR system. The dye removal efficiencies were higher than 80%, even when the system was operated under a high organic loading of 0.36kgBOD(5)/m(3)-d. The GAC-SBR system, however, showed a low direct dye removal efficiency of only 57+/-2.1% with raw textile wastewater (TWW) even though the system was operated with an organic loading of only 0.083kgBOD(5)/m(3)-d. The dyes, COD, BOD(5), and total kjeldalh nitrogen removal efficiencies increased up to 76.0+/-2.8%, 86.2+/-0.5%, 84.2+/-0.7%, and 68.2+/-2.1%, respectively, when 0.89 g/L glucose (organic loading of 0.17kgBOD(5)/m(3)-d) was supplemented into the TWW.

  3. Textile Wastewater Treatment by Electrocoagulation Process using Aluminum Electrodes

    Directory of Open Access Journals (Sweden)

    Edris Bazrafshan

    2014-03-01

    Full Text Available Background and purpose: Textile industries are among the most polluting industries regarding the volume and the complexity of treatment of its effluents discharge. This study investigated the efficiency of electrocoagulation process using aluminum electrodes in basic red 18 dye removal from aqueous solutions. Materials and Methods: This study was performed in a bipolar batch reactor with six aluminum electrodes connected in parallel. Several important parameters, such as initial pH of solution, initial dye concentration, applied voltage; conductivity and reaction time were studied in an attempt to achieve higher removal efficiency. Results: The electrochemical technique showed satisfactory dye removal efficiency and reliable performance in treating of basic red 18. The maximum efficiency of dye removal which was obtained in voltage of 50 V, reaction time of 60 min, initial concentration 50 mg/L, conductivity 3000 μS/cm and pH 7 was equal to 97.7%. Dye removal efficiency was increased accordance to increase of applied voltage and in contrast electrode and energy consumption was increased simultaneously. Conclusion: As a conclusion, the method was found to be highly efficient and relatively fast compared to conventional existing techniques for dye removal from aqueous solutions.

  4. 3D-QSPR Method of Computational Technique Applied on Red Reactive Dyes by Using CoMFA Strategy

    OpenAIRE

    Mahmood, Uzma; Rashid, Sitara; Ali, S. Ishrat; Parveen, Rasheeda; ul-Haq, Zaheer; Ambreen, Nida; Khan, Khalid Mohammed; Perveen, Shahnaz; Voelter, Wolfgang

    2011-01-01

    Cellulose fiber is a tremendous natural resource that has broad application in various productions including the textile industry. The dyes, which are commonly used for cellulose printing, are ?reactive dyes? because of their high wet fastness and brilliant colors. The interaction of various dyes with the cellulose fiber depends upon the physiochemical properties that are governed by specific features of the dye molecule. The binding pattern of the reactive dye with cellulose fiber is called ...

  5. Application of natural dyes in textile industry and the treatment of dye solutions using electrolytic techniques

    OpenAIRE

    Abouamer, Karima Massaud

    2008-01-01

    This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 25/02/2008. Anodic oxidation of a commercial dye, methylene blue (MB), from aqueous solutions using an electrochemical cell is reported. Data are provided on the effects of eight different types of supporting electrolytes, concentration of electrolytes, initial dye concentration, current and electrolytic time on the percentage removal of methylene blue. Anodic oxidation was found to be effect...

  6. PERANCANGAN PROGRAM APLIKASI PEMBELIAN PADA PT INDO TAICHEN TEXTILE INDUSTRY

    Directory of Open Access Journals (Sweden)

    Yakub Yakub

    2010-05-01

    Full Text Available PT Indo Taichen Textile Industry is a company in the textile industry producing cloth. Activities and operations personnel administration, payroll systems, purchasing systems, and inventory systems are conducted manually. Problems begin to become fairly complex on the company’s purchasing system so that a software application is required. Purchasing system is made by Data Flow Diagram (DFD as a model of the process or system and Entity Relation Diagram (ERD as a data model. The purchasing application is programmed using the programming language Visual Basic 6.0 and SQL Server database.Keywords: data base, purchasing, system, information system

  7. Ozo-Dyes mixture degradation in a fixed bed biofilm reactor packed with volcanic porous rock

    International Nuclear Information System (INIS)

    Contreras-Blancas, E.; Cobos-Vasconcelos, D. de los; Juarez-Ramirez, C.; Poggi-Varaldo, H. M.; Ruiz-Ordaz, N.; Galindez-Mayer, J.

    2009-01-01

    Textile industries discharge great amounts of dyes and dyeing-process auxiliaries, which pollute streams and water bodies. Several dyes, especially the ones containing the azo group, can cause harmful effects to different organisms including humans. Through bacterial and mammalian tests, azo dyes or their derived aromatic amines have shown cell genotoxicity. The purpose of this work was to evaluate the effect of air flow rate on azo-dyes mixture biodegradation by a microbial community immobilized in a packed bed reactor. (Author)

  8. Ozo-Dyes mixture degradation in a fixed bed biofilm reactor packed with volcanic porous rock

    Energy Technology Data Exchange (ETDEWEB)

    Contreras-Blancas, E.; Cobos-Vasconcelos, D. de los; Juarez-Ramirez, C.; Poggi-Varaldo, H. M.; Ruiz-Ordaz, N.; Galindez-Mayer, J.

    2009-07-01

    Textile industries discharge great amounts of dyes and dyeing-process auxiliaries, which pollute streams and water bodies. Several dyes, especially the ones containing the azo group, can cause harmful effects to different organisms including humans. Through bacterial and mammalian tests, azo dyes or their derived aromatic amines have shown cell genotoxicity. The purpose of this work was to evaluate the effect of air flow rate on azo-dyes mixture biodegradation by a microbial community immobilized in a packed bed reactor. (Author)

  9. Use of Titanium Dioxide Photocatalysis on the Remediation of Model Textile Wastewaters Containing Azo Dyes

    Directory of Open Access Journals (Sweden)

    Josino Costa Moreira

    2011-12-01

    Full Text Available The photocatalytic degradation of two commercial textile azo dyes, namely C.I Reactive Black 5 and C.I Reactive Red 239, has been studied. TiO2 P25 Degussa was used as catalyst and photodegradation was carried out in aqueous solution under artificial irradiation with a 125 W mercury vapor lamp. The effects of the amount of TiO2 used, UV-light irradiation time, pH of the solution under treatment, initial concentration of the azo dye and addition of different concentrations of hydrogen peroxide were investigated. The effect of the simultaneous photodegradation of the two azo dyes was also investigated and we observed that the degradation rates achieved in mono and bi-component systems were identical. The repeatability of photocatalytic activity of the photocatalyst was also tested. After five cycles of TiO2 reuse the rate of colour lost was still 77% of the initial rate. The degradation was followed monitoring the change of azo dye concentration by UV-Vis spectroscopy. Results show that the use of an efficient photocatalyst and the adequate selection of optimal operational parameters may easily lead to a complete decolorization of the aqueous solutions of both azo dyes.

  10. Study of Textile Surface Characteristic Modification by Using Electron Beam Radiation

    International Nuclear Information System (INIS)

    Iswani Gitawati; Rany Saptaaji

    2007-01-01

    The success of accelerator technology application in various field of industry, medical and pharmacy, environment, agricultural, food increase each year as the increasing of people needs, not excepted for surface treatment of fibers and textiles in textile industry. This writing aim is to asses the application of electron beam accelerator for textile surface treatment on finishing step. Surface treatment was done with electron beam low energy (100 - 500 keV), and because of its low penetration it was suitable used to gain the improvement of chemical, physical and mechanical properties of textile surface such as adhesion, wettability, printability, dyes-intake, crease recovery, wrinkle-resistance, flammability, abrasion resistance, soil and stain release to get better result. Modification of fibers and textiles surface properties on finishing process can be caused by crosslinking, grafting and degradation reactions. The assesment results showed that the greatest impact on commercial application of radiation in textiles were crease recovery and surface modification of wetting properties (soil and stain release). The radiation dose used for those purposes were 5 - 50 kGy. The bach process of graft textiles surface modification before and after irradiation by Co-60 source (gamma energies of 1.33 and 1.17 MeV) and continue process by electron beam were presented. The assesment results were reported in this paper. (author)

  11. Decolorization of Reactive Blue 19 Dye from Textile Wastewater by the UV/H2O2 Process

    Science.gov (United States)

    Rezaee, Abbas; Taghi Ghaneian, Mohammad; Jamalodin Hashemian, Sayed; Moussavi, Gholamreza; Khavanin, Ali; Ghanizadeh, Ghader

    Photo-oxidation of dyes is a new concern among researchers since it offers an attractive method for decoloration of dyes and breaks them into simple mineral forms. An advanced oxidation process, UV/H2O2, was investigated in a laboratory scale photoreactor for decolorization of the Reactive blue 19 (RB19) dye from synthetic textile wastewater. The effects of operating parameters such as hydrogen peroxide dosage, pH, initial dye concentration and UV dosage, on decolorization have been evaluated. The RB19 solution was completely decolorized under optimal hydrogen peroxide dosage of 2.5 mmol L-1 and low-pressure mercury UV-C lamps (55 w) in less than 30 min. The decolorization rate followed pseudo-first order kinetics with respect to the dye concentration. The rate increased linearly with volumetric UV dosage and nonlinearly with increasing initial hydrogen peroxide concentration. It has been found that the degradation rate increased until an optimum of hydrogen peroxide dosage, beyond which the reagent exerted an inhibitory effect. From the experimental results, the UV/H2O2 process was an effective technology for RB19 dye treatment in wastewater.

  12. Brazilwood, sappanwood, brazilin and the red dye brazilein: from textile dyeing and folk medicine to biological staining and musical instruments.

    Science.gov (United States)

    Dapson, R W; Bain, C L

    2015-01-01

    Brazilin is a nearly colorless dye precursor obtained from the heartwood of several species of trees including brazilwood from Brazil, sappanwood from Asia and the Pacific islands, and to a minor extent from two other species in Central America, northern South America and the Caribbean islands. Its use as a dyeing agent and medicinal in Asia was recorded in the 2(nd) century BC, but was little known in Europe until the 12(th) century AD. Asian supplies were replaced in the 16(th) century AD after the Portuguese discovered vast quantities of trees in what is now Brazil. Overexploitation decimated the brazilwood population to the extent that it never fully recovered. Extensive environmental efforts currently are underway to re-create a viable, sustainable population. Brazilin is structurally similar to the better known hematoxylin, thus is readily oxidized to a colored dye, brazilein, which behaves like hematein. Attachment of the dye to fabric is by hydrogen bonding or in conjunction with certain metallic mordants by coordinative bonding. For histology, most staining procedures involve aluminum (brazalum) for staining nuclei. In addition to textile dyeing and histological staining, brazilin and brazilein have been and still are used extensively in Asian folk medicine to treat a wide variety of disorders. Recent pharmacological studies for the most part have established a scientific basis for these uses and in many cases have elucidated the biochemical pathways involved. The principal use of brazilwood today is for the manufacture of bows for violins and other stringed musical instruments. The dye and other physical properties of the wood combine to produce bows of unsurpassed tonal quality.

  13. Treatability studies with granular activated carbon (GAC) and sequencing batch reactor (SBR) system for textile wastewater containing direct dyes

    International Nuclear Information System (INIS)

    Sirianuntapiboon, Suntud; Sansak, Jutarat

    2008-01-01

    The GAC-SBR efficiency was decreased with the increase of dyestuff concentration or the decrease of bio-sludge concentration. The system showed the highest removal efficiency with synthetic textile wastewater (STWW) containing 40 mg/L direct red 23 or direct blue 201 under MLSS of 3000 mg/L and hydraulic retention time (HRT) of 7.5 days. But, the effluent NO 3 - was higher than that of the influent. Direct red 23 was more effective than direct blue 201 to repress the GAC-SBR system efficiency. The dyes removal efficiency of the system with STWW containing direct red 23 was reduced by 30% with the increase of direct red 23 from 40 mg/L to 160 mg/L. The system with raw textile wastewater (TWW) showed quite low BOD 5 TKN and dye removal efficiencies of only 64.7 ± 4.9% and 50.2 ± 6.9%, respectively. But its' efficiencies could be increased by adding carbon sources (BOD 5 ). The dye removal efficiency with TWW was increased by 30% and 20% by adding glucose (TWW + glucose) or Thai rice noodle wastewater (TWW + TRNWW), respectively. SRT of the systems were 28 ± 1 days and 31 ± 2 days with TWW + glucose and TWW + TRNWW, respectively

  14. Treatability studies with granular activated carbon (GAC) and sequencing batch reactor (SBR) system for textile wastewater containing direct dyes

    Energy Technology Data Exchange (ETDEWEB)

    Sirianuntapiboon, Suntud [Department of Environmental Technology, School of Energy Environment and Materials, King Mongkut' s University of Technology, Thonburi, Bangmod, Thung-kru, Bangkok 10140 (Thailand)], E-mail: suntud.sir@kmutt.ac.th; Sansak, Jutarat [Department of Environmental Technology, School of Energy Environment and Materials, King Mongkut' s University of Technology, Thonburi, Bangmod, Thung-kru, Bangkok 10140 (Thailand)

    2008-11-30

    The GAC-SBR efficiency was decreased with the increase of dyestuff concentration or the decrease of bio-sludge concentration. The system showed the highest removal efficiency with synthetic textile wastewater (STWW) containing 40 mg/L direct red 23 or direct blue 201 under MLSS of 3000 mg/L and hydraulic retention time (HRT) of 7.5 days. But, the effluent NO{sub 3}{sup -} was higher than that of the influent. Direct red 23 was more effective than direct blue 201 to repress the GAC-SBR system efficiency. The dyes removal efficiency of the system with STWW containing direct red 23 was reduced by 30% with the increase of direct red 23 from 40 mg/L to 160 mg/L. The system with raw textile wastewater (TWW) showed quite low BOD{sub 5} TKN and dye removal efficiencies of only 64.7 {+-} 4.9% and 50.2 {+-} 6.9%, respectively. But its' efficiencies could be increased by adding carbon sources (BOD{sub 5}). The dye removal efficiency with TWW was increased by 30% and 20% by adding glucose (TWW + glucose) or Thai rice noodle wastewater (TWW + TRNWW), respectively. SRT of the systems were 28 {+-} 1 days and 31 {+-} 2 days with TWW + glucose and TWW + TRNWW, respectively.

  15. Treatability studies with granular activated carbon (GAC) and sequencing batch reactor (SBR) system for textile wastewater containing direct dyes.

    Science.gov (United States)

    Sirianuntapiboon, Suntud; Sansak, Jutarat

    2008-11-30

    The GAC-SBR efficiency was decreased with the increase of dyestuff concentration or the decrease of bio-sludge concentration. The system showed the highest removal efficiency with synthetic textile wastewater (STWW) containing 40 mg/L direct red 23 or direct blue 201 under MLSS of 3,000 mg/L and hydraulic retention time (HRT) of 7.5 days. But, the effluent NO(3)(-) was higher than that of the influent. Direct red 23 was more effective than direct blue 201 to repress the GAC-SBR system efficiency. The dyes removal efficiency of the system with STWW containing direct red 23 was reduced by 30% with the increase of direct red 23 from 40 mg/L to 160 mg/L. The system with raw textile wastewater (TWW) showed quite low BOD(5) TKN and dye removal efficiencies of only 64.7+/-4.9% and 50.2+/-6.9%, respectively. But its' efficiencies could be increased by adding carbon sources (BOD(5)). The dye removal efficiency with TWW was increased by 30% and 20% by adding glucose (TWW+glucose) or Thai rice noodle wastewater (TWW+TRNWW), respectively. SRT of the systems were 28+/-1 days and 31+/-2 days with TWW+glucose and TWW+TRNWW, respectively.

  16. Textile wastewater treatment: colour and COD removal of reactive black-5 by ozonation

    Science.gov (United States)

    Suryawan, I. W. K.; Helmy, Q.; Notodarmojo, S.

    2018-01-01

    Textile industries produced a large amount of highly coloured wastewater containing variety of dyes in different concentrations. Due to the high concentration of organics in the effluents and the higher stability of modern synthetic dyes, the conventional biological treatment methods are ineffective for the complete colour removal and degradation of organics and dyes. On the other hand, physical-chemical treatment are not destructive, mainly just concentrate and separate the pollutants phases. This research paper investigates the removal of colour and chemical oxygen demand/COD from textile wastewater using ozone treatment. Varied ozone dosages of 1.16; 3.81; 18.79; and 40.88 mg/minute were used in the experiment. Varied wastewater containing Reactive Black 5 (RB-5) concentrations of 40 mg/L, 100 mg/L were also applied. Research result showed the highest colour removal efficiency of 96.9 % was achieved after 5 hours incubation time, while the highest COD removal efficiency of 77.5% was achieved after 2 hours incubation time.

  17. Proposed industrial recoverd materials utilization targets for the textile mill products industry

    Energy Technology Data Exchange (ETDEWEB)

    1979-05-01

    Materials recovery targets were established to represent the maximum technically and economically feasible increase in the use of energy-saving materials by January 1, 1987. This report describes targets for the textile industry and describes how those targets were determined. (MCW)

  18. THE DEVELOPMENT DYNAMICS OF THE TEXTILE AND CLOTHING INDUSTRY IN MOLDOVA

    Directory of Open Access Journals (Sweden)

    Alexandru GRIBINCEA

    2014-03-01

    Full Text Available The Moldovan textile sector is a major domain of the country’s export and still has a tremendous growth potential. The industry accounted for 1.5% of the GDP and 3.9 (NBS of the manufacturing GDP. The textile cluster employed over 2,750 workers in 2010, 4,092 in 2011 and 4,118 in 2012. The most important export destinations for Moldovan textile producers are EU countries. Moldova’s main competitive advantages include the competitive workforce and the fact that this is one of the cheapest locations. Most of these jobs are rural-based and taken by young women, who make up 85-95% of all T&A workers. The value of the manufactured textiles was € 33,8 million in 2010 and rose more than twice - up to € 68,14 million in 2011 and € 78,95 in 2012 (NBS. Moldova has an easy access to both CIS and European markets. Over 83 (NBS companies operate in the Moldovan textile industry, most of them in CM (cut and make, CMT (cut, make and trim processing. Major foreign partners for outsourcing are of Italian, German and Dutch origin, and include Dolce&Gabbana and Trussardi, for instance.

  19. Study on implementation of environmental management system in textile industry in Sudan

    International Nuclear Information System (INIS)

    Mohamed, H. A.

    2010-11-01

    This conducted from June to December, the main objective of this study is to formulate manual for textile industry in Sudan. The data used in this study is secondary data from references, books manuals, web sites and reports. This theoretical data can be executed practically. The quality of life on earth is linked inextricably to the overall quality of the environment. One of the major problems facing the industrial world today is the contamination of soil, ground water, sediments, surface water and air with hazardous toxic chemicals dumped by industries as waste. While regulatory step have been implemented in the recent past to reduce or eliminate the production and release of these chemicals into the environment, significant deterioration of the environment has already occurred so far. Conventional treatments have been used by some industries, but these can be both, expensive and inherently disruptive to the environment. Thus, economical and ecological management of industrial wastes has become a major concern these days. Integrating both economical and ecological methods in waste management by implementation environmental management system in textile sector, to enable textile industry to establish waste minimization programmes, reduction of pollution and reduced environmental impact. Effective waste minimization programmes an essential aspect of any EMS compliance with ISO 14000, reduction in the risk of pollution reliability, enhanced international acceptability, competitiveness and trade. environmental sustain ability and international and national acceptance to this are presented here, which can be used a good database by the organizations which can put into use these approaches for the efficient ecological management of their industrial wastes. The main objective of this to make Sudanese textile industry environmentally friend by establish manual for this. (Author)

  20. Physiochemical Treatment of Textile Industry Effluents

    International Nuclear Information System (INIS)

    Latif, M. I.; Qazi, M. A.; Khan, H.; Ahmad, N.

    2015-01-01

    The study mainly focuses on the application of chemical Coagulants (Lime, Alum and Ferrous Sulfate) and Advanced Oxidation Processes (AOPs) (Ozone Treatment and Fenton Process, alone and in combination) to treat textile industry effluents, optimization of coagulation process for various Coagulants in terms of process conditions, including coagulant dose, pH and settling time. The results revealed that Alum was most effective. The efficiency of coagulation process was dose dependent and 400 mg/L dose of Alum alone showed maximum color removal of 47%, 57% and 54% of yellow, red and blue dyes, respectively in addition to the COD removal of 44%. The combined applications of Alum and Lime (300:75 mg/L) and Lime and Alum (300:75 mg/L) showed slightly better COD removal of 51%. However, color removal efficiency of all coagulants was at par. The Ozonation process appeared the most promising for the treatment of waste water and color/COD removal, the efficiency of which increased with increasing the treatment time at constant Ozone dose. For less polluted effluents, 97% color removal was obtained after 1 minute and after 15 minutes for highly polluted effluents; The COD removal efficiency of the process for less polluted effluents was around 89% after 5 minutes Ozonation and for highly polluted effluents 88% COD removal after 40 minutes. The performance of Fenton process was extremely low as compared to Ozonation process. Increase in pH, significantly decreased the color removal efficiency of the process. COD removal efficiency of Fenton process increased with an increase in settling time. (author)

  1. Assessment of the impact of textile effluents on microbial diversity in Tirupur district, Tamil Nadu

    Science.gov (United States)

    Prabha, Shashi; Gogoi, Anindita; Mazumder, Payal; Ramanathan, AL.; Kumar, Manish

    2017-09-01

    The expedited advent of urbanization and industrialization for economic growth has adversely affected the biological diversity, which is one of the major concerns of the developing countries. Microbes play a crucial role in decontaminating polluted sites and degrades pollution load of textile effluent. The present study was based on identification of microbial diversity along the Noyaal river of Tirupur area. River water samples from industrial and non-industrial sites and effluent samples of before and after treatment were tested and it was found that microbial diversity was higher in the river water at the industrial site (Kasipalayam) as compared to the non-industrial site (Perur). Similarly, the microbial populations were found to be high in the untreated effluent as compared to the treated one by conventional treatment systems. Similar trends were observed for MBR treatment systems as well. Pseudomonas sp ., Achromobacter sp. (bacterial species) and Aspergillus fumigates (fungal species), found exclusively at the industrial site have been reported to possess decolorization potential of dye effluent, thus can be used for treatment of dye effluent. The comparison of different microbial communities from different dye wastewater sources and textile effluents was done, which showed that the microbes degrade dyestuffs, reduce toxicity of wastewaters, etc. From the study, it can be concluded that the microbial community helps to check on the pollutants and minimize their affect. Therefore, there is a need to understand the systematic variation in microbial diversity with the accumulation of pollution load through monitoring.

  2. Bioremediation of acid fast red dye by Streptomyces globosus under ...

    African Journals Online (AJOL)

    Administrator

    2011-04-25

    Apr 25, 2011 ... Azo dyes are widely used in industries, such as textiles, paper, plastics ... processes have received increasing interest owing to their cost effectiveness and environmental friendliness. (Mabrouk and ... hydrolytic enzymes . In addition it .... A trial for using potato peels for more economic biomass production.

  3. Evaluation of toxicity and removal of color in textile effluent treated with electron beam

    International Nuclear Information System (INIS)

    Morais, Aline Viana de

    2015-01-01

    The textile industry is among the main activities Brazil, being relevant in number of jobs, quantity and diversity of products and mainly by the volume of water used in industrial processes and effluent generation. These effluents are complex mixtures which are characterized by the presence of dyes, surfactants, metal sequestering agents, salts and other potentially toxic chemicals for the aquatic biota. Considering the lack of adequate waste management to these treatments, new technologies are essential in highlighting the advanced oxidation processes such as ionizing radiation electron beam. This study includes the preparation of a standard textile effluent chemical laboratory and its treatment by electron beam from electron accelerator in order to reduce the toxicity and intense staining resulting from Cl. Blue 222 dye. The treatment caused a reduction in toxicity to exposed organisms with 34.55% efficiency for the Daphnia similis micro crustacean and 47.83% for Brachionus plicatilis rotifer at a dose of 2.5 kGy. The Vibrio fischeri bacteria obtained better results after treatment with a dose of 5 kGy showing 57.29% efficiency. Color reduction was greater than 90% at a dose of 2.5 kGy. This experiment has also carried out some preliminary tests on the sensitivity of the D. similis and V. fischeri organisms to exposure of some of the products used in this bleaching and dyeing and two water reuse simulations in new textile processing after the treating the effluent with electron beam. (author)

  4. Evaluation of the potential of red mud heat treated at 400 deg C in adsorption of textile dyes

    International Nuclear Information System (INIS)

    Antunes, M.L.P.; Rangueri, T.B.

    2011-01-01

    The production of aluminum metal generates a huge amount of red mud as industrial waste. The storage of such material causes serious environmental damage and needs large area for your disposal. Develop technologies that allow its reuse is an alternative. Studies show that the mud has adsorbent properties and may be used in the treatment of wastewater, gas and textiles. This work presents the characterization by X-ray diffraction and surface area of the red mud Brazilian thermally activated at 400 deg C to evaluate the adsorption capacity of this material to the dye reactive blue 19 in pH 4. Through the construction of the Langmuir isotherm was determined adsorption capacity, which, in alkaline media, got an average of 136.9 mg / g. The results suggest that under certain conditions, the red mud has potential as an alternative adsorbent and low cost. (author)

  5. Economic and employment potential in textile waste management of Faisalabad.

    Science.gov (United States)

    Noman, Muhammad; Batool, Syeda Adila; Chaudhary, Muhammad Nawaz

    2013-05-01

    The aim of this study is to characterize the waste from the textile industry, to identify the sources and types of waste generation and to find out the economic and employment potential in this sector. Textile waste, its management, and the economic and employment potential in this sector are unrevealed facts in developing countries such as Pakistan. The textile industry is ranked first in export earning in Pakistan. Textile export of yarn and cloth from Faisalabad is US$3 billion per year. On average 161 325 people are employed in the textile sector in Faisalabad, of which 11 860 are involved in solid waste handling and management. The textile industries generate solid wastes such as fibre, metal, plastic and paper waste. A total of 794 209 kg day(-1) (289 886 285 kg year(-1)) solid waste is produced from this sector and purchased by cotton waste junkshop owners at US$125 027 day(-1) (US$45 634 855 year(-1)). Only pre-consumer textile waste is considered. Interestingly no waste is sent to landfill. The waste is first segregated into different categories/ types by hand and then weighed. Cotton waste is sold to brick kilns where it is used as an alternative fuel as it is cheaper than wood/coal. Iron scrap is sold in the junk market from where it is resold to recycling industries. Paper waste is recycled, minimizing the virgin material used for producing new paper products. Iron and plastic drums are returned to the chemical industries for refilling, thus decreasing the cost of dyes and decreasing the demand for new drums. Cutting rags are used for making different things such as ropes and underlay, it is also shredded and used as fillings for pillows and mattresses, thus improving waste management, reducing cost and minimizing the need for virgin material. As no system of quality control and no monitoring of subsequent products exist there is a need to carry out quality control and monitoring.

  6. POLICY IMPLICATIONS OF TEXTILE TRADE MANAGEMENT AND THE U.S. COTTON INDUSTRY

    OpenAIRE

    Shui, Shangnan; Wohlgenant, Michael K.; Beghin, John C.

    1993-01-01

    This study investigates the effects on the U.S. cotton industry of textile trade liberalization using a multi-market equilibrium displacement model. The simulation results suggest that textile trade liberalization would induce small changes in the total demand for U.S. cotton but would affect considerable y U.S. cotton demand structure, making U. S, cotton growers more dependent on world markets. The welfare analyses reveal that textile trade liberalization would result in a small welfare los...

  7. Determinants of Innovation Culture: a Study of Textile Industry in Santa Catarina

    Directory of Open Access Journals (Sweden)

    Giancarlo Gomes

    2015-01-01

    Full Text Available The Brazilian textile industry has suffered the impact of products from Asian countries, mainly because of low prices. Seeking to determine the differential of the textile industry of the state of Santa Catarina, the objective of this study is to analyze the determinants of organizational culture –strategy, structure, support mechanisms, stimulus to innovation and communication –that influence innovation in textile companies in the state, based on a survey among 441 respondents from 16 firms. Data were analyzed using structuralequation modeling. We conclude that organizational structure was the dimension that had the strongest influence in shaping the culture of innovation. Flexibility and the presence of multifunctional teams are indicators that show that organizations are working to develop a culture of innovation.

  8. The application of textile sludge adsorbents for the removal of Reactive Red 2 dye.

    Science.gov (United States)

    Sonai, Gabriela G; de Souza, Selene M A Guelli U; de Oliveira, Débora; de Souza, Antônio Augusto U

    2016-03-01

    Sludge from the textile industry was used as a low-cost adsorbent to remove the dye Reactive Red 2 from an aqueous solution. Adsorbents were prepared through the thermal and chemical treatment of sludge originating from physical-chemical (PC) and biological (BIO) effluent treatment processes. The adsorbent characterization was carried out through physical-chemical analysis, X-ray fluorescence (XRF) spectroscopy, Fourier transform infrared (FTIR) spectroscopy, pHPZC determination, Boehm titration method, Brunauer-Emmett-Teller (BET) surface area analysis and scanning electron microscopy (SEM). Batch kinetic experiments and adsorption isotherm modeling were conducted under different pH and temperature conditions. The results for the kinetic studies indicate that the adsorption processes associated with these systems can be described by a pseudo-second-order model and for the equilibrium data the Langmuir model provided the best fit. The adsorption was strongly dependent on the pH but not on the temperature within the ranges studied. The maxima adsorption capacities were 159.3 mg g(-1) for the BIO adsorbent and 213.9 mg g(-1) for PC adsorbent at pH of 2 and 25 °C. Copyright © 2015 Elsevier Ltd. All rights reserved.

  9. Barriers to the adoption of energy-conserving technologies in the textile industry

    Energy Technology Data Exchange (ETDEWEB)

    Evans, A.R.; Zussman, S.K.

    1979-09-01

    An overview of the textile industry and a discussion of energy-conserving technologies currently available at the pilot-demonstration stage are presented. Existing and potential barriers to the adoption of these technologies in the textile industry identified are: economic; technical acceptance; conflict between commitments of capital for compliance with environmental and health regulations and for investment in energy conservation measures; and a lack of information and technical expertise. Possible measures to eliminate barriers to the implementation of energy-conserving technologies are discussed. (MCW)

  10. Application of solar photo-Fenton toward toxicity removal and textile wastewater reuse.

    Science.gov (United States)

    Starling, Maria Clara V M; Dos Santos, Paulo Henrique Rodrigues; de Souza, Felipe Antônio Ribeiro; Oliveira, Sílvia Corrêa; Leão, Mônica M D; Amorim, Camila C

    2017-05-01

    Solar photo-Fenton represents an innovative and low-cost option for the treatment of recalcitrant industrial wastewater, such as the textile wastewater. Textile wastewater usually shows high acute toxic and variability and may be composed of many different chemical compounds. This study aimed at optimizing and validating solar photo-Fenton treatment of textile wastewater in a semi-pilot compound parabolic collector (CPC) for toxicity removal and wastewater reclamation. In addition, treated wastewater reuse feasibility was investigated through pilot tests. Experimental design performed in this study indicated optimum condition for solar photo-Fenton reaction (20 mg L -1 of Fe 2+ and 500 mg L -1 of H 2 O 2 ; pH 2.8), which achieved 96 % removal of dissolved organic carbon (DOC) and 99 % absorbance removal. A toxicity peak was detected during treatment, suggesting that highly toxic transformation products were formed during reaction. Toxic intermediates were properly removed during solar photo-Fenton (SPF) treatment along with the generation of oxalic acid as an ultimate product of degradation and COS increase. Different samples of real textile wastewater were treated in order to validate optimized treatment condition with regard to wastewater variability. Results showed median organic carbon removal near 90 %. Finally, reuse of treated textile wastewater in both dyeing and washing stages of production was successful. These results confirm that solar photo-Fenton, as a single treatment, enables wastewater reclamation in the textile industry. Graphical abstract Solar photo-Fenton as a revolutionary treatment technology for "closing-the-loop" in the textile industry.

  11. Treatment and toxicity reduction of textile dyeing wastewater using the electrocoagulation-electroflotation process.

    Science.gov (United States)

    Kim, Han-Lae; Cho, Jong-Bok; Park, Yong-Jin; Cho, Il-Hyoung

    2016-07-02

    A pilot-scale study was conducted using the electrocoagulation-electroflotation (EC-EF) process to treat textile dyeing raw wastewater to evaluate treatment performance. The effects of some key factors, such as current density, hydraulic retention time (HRT), and removal of conductivity, total suspended solids (TSS), chemical oxygen demand (COD), and color were investigated. The operating variables were current density of 0-300 A m(-2), HRT of 0-30 min, and a coagulant (anionic polyacrylamide (A-PAM)) dosage of 0-30 mg L(-1). Daphnia magna was used to test acute toxicity in raw and treated wastewater. Under the operating conditions without added coagulant, maxima of 51%, 88%, 84%, and 99% of conductivity, TSS, COD, and color were removed, respectively, with a HRT of 30 min. The coagulant enhanced removal of all wastewater parameters. Removal maxima of 59%, 92%, 94%, and 98% for conductivity, TSS, COD, and color were observed, respectively, with an optimal dosage of 30 mg L(-1) and a shortened HRT of 20 min. The 48 h-LC50 D. magna test showed that the raw wastewater was highly toxic. However, the EC-EF process decreased toxicity of the treated samples significantly, and >70% toxicity reduction was achieved by the EC-EF process with the addition of 15-30 mg L(-1) coagulant, HRT of 20 min, and current density of 150-300 A m(-2). The pilot scale test (0.3 m(3 )h(-1)) shows that the EC-EF process with added coagulant effectively treated textile dyeing wastewater.

  12. Gamma radiation treatment of waste waters from textile industries in ...

    African Journals Online (AJOL)

    Effects of gamma irradiation alone, and in combination with chemical treatment on color, odor, chemical oxyg-en demand (COD) and suspended solids in waste waters from textile industries in Ghana were studied to explore the potential of alternative and innovative processes for treatment of industrial waste waters. Waste ...

  13. E-COMMERCE AREA FOR TEXTILE INDUSTRY

    OpenAIRE

    R. M. Aileni; D. Farima; M. Ciocoiu

    2011-01-01

    This paper presents some management aspects concerning the e-commerce area for textile industry.Here it can have database management – customers, products and brand visualisation management. The databasemanagement can be doing by using a database management system. For database management it was use therelational model based on first-order predicate logic [1]. In this paper it was analyzed the relational databasemodel. The e-commerce area is born from need to simplify the buying and selling g...

  14. E-beam Irradiation and Activated Sludge System for Treatment of Textiles and Food Base Industrial Waste Water

    International Nuclear Information System (INIS)

    Khomsaton Abu Bakar; Selambakkanu, S.; Jamaliah Sharif

    2011-01-01

    The combination of irradiation and biological technique was chosen to study COD, BOD5 and colour removal from textiles effluent in the presence of food industry wastewater. Two biological treatments, the first consisting a mix of non irradiated textile and food industry wastewater and the second a mix of irradiated textiles wastewater and food industry wastewater were operated in parallel. Reduction percentage of COD in textiles wastewater increased from 29.4 % after radiation only to 62.4 % after further undergoing biological treatment. After irradiation the BOD5 of textiles wastewater reduced by 22.1 %, but reverts to the original value of 36 mg/l after undergoing biological treatment. Colour had decreased from 899.5 ADMI to 379.3 ADMI after irradiation and continued to decrease to 109.3 ADMI after passing through biological treatment. (author)

  15. Vocational Training in the Textiles and Clothing Industries in Greece.

    Science.gov (United States)

    Drimousis, I.; Zisimopoulos, A.

    This document examines the circumstances under which vocational training in Greece is provided for jobs in the textile and clothing industries. Its objective is to identify guidelines for vocational training for a skilled work force at regional and national levels and to contribute to job mobility between industries. Statistical data,…

  16. COMPARATIVE STUDY OF TWO DYEING METHODS USING REACTIVE DYE

    Directory of Open Access Journals (Sweden)

    HINOJOSA Belén

    2016-05-01

    Full Text Available Environment preservation is a common worry not only for people but for companies as well. Industry is more and more concern about the necessity of developing new and more respectful processes. Dye is one of the most important processes in the textile industry but it is also considered as no too safe regarding environment issues. This process uses large amounts of water and generates big volumes of wastewater. Following this issue, new regulations and laws emerge to control the waste generated. This leads to the companies and increased costs in terms of wastewater treatments and high water consumption. In this research we compare two systems on garment finishing application, the conventional bath process and the new Ecofinish system that is able to save water and product. To compare these processes, we carried out a reactive dyeing using both systems in order to determine the quality differences in the final product. For this purpose, the samples have been tested to washing and rubbing fastness, according to UNE EN ISO 105 C10 and UNE- EN ISO 105 X12 standards, respectively. This study confirms that this system achieves water savings and reduces the wastewater produced, getting a good dyeing. This process can be considered as an alternative to the conventional one.

  17. Treatment of wastewater dyeing agent by photocatalytic process in solar reactor

    OpenAIRE

    Zahraa, O.; Maire, S.; Evenou, F.; Hachem, C.; Pons, M. N.; Alinsafi, A.; Bouchy, M.

    2006-01-01

    The photocatalytic decolorization of industrial textile dyes has been studied. The treatment was carried out on a solar reactor consisting in a flat active plane, tilted so as to face the sun and to allow the trickling of the water to be treated. Alternatively the reactor could be irradiated by an artificial source. After checking the system using salicylic acid, a conventional model molecule, the photocatalytic decolorization of Orange II, Yellow Drimarene, and Black Drimarene dyes was inves...

  18. Recovery of real dye bath wastewater using integrated membrane process: considering water recovery, membrane fouling and reuse potential of membranes.

    Science.gov (United States)

    Balcik-Canbolat, Cigdem; Sengezer, Cisel; Sakar, Hacer; Karagunduz, Ahmet; Keskinler, Bulent

    2017-11-01

    It has been recognized by the whole world that textile industry which produce large amounts of wastewater with strong color and toxic organic compounds is a major problematical industry requiring effective treatment solutions. In this study, reverse osmosis (RO) membranes were tested on biologically treated real dye bath wastewater with and without pretreatment by nanofiltration (NF) membrane to recovery. Also membrane fouling and reuse potential of membranes were investigated by multiple filtrations. Obtained results showed that only NF is not suitable to produce enough quality to reuse the wastewater in a textile industry as process water while RO provide successfully enough permeate quality. The results recommend that integrated NF/RO membrane process is able to reduce membrane fouling and allow long-term operation for real dye bath wastewater.

  19. Adsorption of reactive blue BF-5G dye by soybean hulls: kinetics, equilibrium and influencing factors.

    Science.gov (United States)

    Honorio, Jacqueline Ferandin; Veit, Márcia Teresinha; Gonçalves, Gilberto da Cunha; de Campos, Élvio Antonio; Fagundes-Klen, Márcia Regina

    2016-01-01

    The textile industry is known for the high use of chemicals, such as dyes, and large volumes of effluent that contaminate waters, a fact that has encouraged research and improved treatment techniques. In this study, we used unprocessed soybean hulls for the removal of reactive blue BF-5G dye. The point of zero charge of soybean hulls was 6.76. Regarding the speed of agitation in the adsorption process, the resistance to mass transfer that occurs in the boundary layer was eliminated at 100 rpm. Kinetics showed an experimental amount of dye adsorbed at equilibrium of 57.473 mg g(-1) obtained under the following conditions: dye initial concentration = 400 mg L(-1); diameter of particle = 0.725 mm; dosage = 6 g L(-1); pH 2; 100 rpm; temperature = 30 °C; and duration of 24 hours. The pseudo-second order best showed the dye removal kinetics. The adsorption isotherms performed at different temperatures (20, 30, 40 and 50 °C) showed little variation in the concentration range assessed, being properly adjusted by the Langmuir isotherm model. The maximum capacity of dye adsorption was 72.427 mg g(-1) at 30 °C. Since soybean hull is a low-cost industrial byproduct, it proved to be a potential adsorbent for the removal of the textile dye assessed.

  20. Export boost of Textile Industry of Pakistan by availing EU’s GSP Plus

    OpenAIRE

    Wagan, Shah Mehmood

    2015-01-01

    Pakistan is commonly known as agriculture based economy where vast areas of cultivated lands are producing cotton. This enabled to establish and flourish textile industries in Pakistan, therefore Pakistan is vital part of cheap and quality based textile products exporting country. Recently Pakistan is granted European Union's Generalised Scheme of Preferences (GSP) Plus status as a year from January 2014 by European Union because of that Pakistan's Textile exports surged to $14.22 billion in ...

  1. The Mycenaean Palace-Organised Textile Industry

    DEFF Research Database (Denmark)

    Nosch, Marie-Louise Bech

    2008-01-01

    Investigation of the textile production in af tekstilprodutionen in Linear B archives. The administration of the textile prodution is compared to the administration of land holdings.......Investigation of the textile production in af tekstilprodutionen in Linear B archives. The administration of the textile prodution is compared to the administration of land holdings....

  2. Decolorization of azo dyes (Direct Blue 151 and Direct Red 31 by moderately alkaliphilic bacterial consortium

    Directory of Open Access Journals (Sweden)

    Sylvine Lalnunhlimi

    2016-03-01

    Full Text Available Abstract Removal of synthetic dyes is one of the main challenges before releasing the wastes discharged by textile industries. Biodegradation of azo dyes by alkaliphilic bacterial consortium is one of the environmental-friendly methods used for the removal of dyes from textile effluents. Hence, this study presents isolation of a bacterial consortium from soil samples of saline environment and its use for the decolorization of azo dyes, Direct Blue 151 (DB 151 and Direct Red 31 (DR 31. The decolorization of azo dyes was studied at various concentrations (100–300 mg/L. The bacterial consortium, when subjected to an application of 200 mg/L of the dyes, decolorized DB 151 and DR 31 by 97.57% and 95.25% respectively, within 5 days. The growth of the bacterial consortium was optimized with pH, temperature, and carbon and nitrogen sources; and decolorization of azo dyes was analyzed. In this study, the decolorization efficiency of mixed dyes was improved with yeast extract and sucrose, which were used as nitrogen and carbon sources, respectively. Such an alkaliphilic bacterial consortium can be used in the removal of azo dyes from contaminated saline environment.

  3. Research on cost early warning of textile industry based on AC algorithm

    Directory of Open Access Journals (Sweden)

    Xiaolu Meng

    2017-03-01

    Full Text Available In recent years, the textile industry faces huge pressure domestically and internationally. With a small profit margin in the textile industry, it becomes very important to improve the economic efficiency and the cost management. Therefore, establishing an effective cost early warning system for the textile industry is necessary. The proposal of AC algorithm predicts the cost alert completely based on the historical data without estimating or assuming the future trend of the input variables in advance. Based on its advantages, the length of pattern (k is 2, 3, 4 or 5, and then we respectively build the cost early warning model. According to the results of comparison, the model with k =3 has the strongest predictive ability. The predictive error of the total cost is 1.8%, smaller than that of others. Then, this paper predicts the cost alert of the next five years by the model with k =3. The results show that the cost alert has certain volatility. Accordingly, we proposed some suggestions to cope with the crisis. This paper also provides references for the industry, government and relevant investors.

  4. Job Loss and Survival Strategies in the Textile and Apparel Industries.

    Science.gov (United States)

    Mittelhauser, Mark

    1996-01-01

    Discusses the job loss in the textile and apparel industries because of fierce domestic and international competition that has closed mills and factories. Suggests that intensified competition and advanced technology will ensure turbulent and challenging years ahead for the domestic industries. (JOW)

  5. Treatment of a simulated textile wastewater in a sequencing batch reactor (SBR) with addition of a low-cost adsorbent

    International Nuclear Information System (INIS)

    Santos, Sílvia C.R.; Boaventura, Rui A.R.

    2015-01-01

    Highlights: • Treating textile dyeing effluents by SBR coupled with waste sludge adsorption. • Metal hydroxide sludge: a good adsorbent for a direct textile dye. • Good adsorption capacities were found with the low-cost adsorbent. • Adsorbent performance considerably reduced by auxiliary products. • Color removal complies with discharge limits. - Abstract: Color removal from textile wastewaters, at a low-cost and consistent technology, is even today a challenge. Simultaneous biological treatment and adsorption is a known alternative to the treatment of wastewaters containing biodegradable and non-biodegradable contaminants. The present work aims at evaluating the treatability of a simulated textile wastewater by simultaneously combining biological treatment and adsorption in a SBR (sequencing batch reactor), but using a low-cost adsorbent, instead of a commercial one. The selected adsorbent was a metal hydroxide sludge (WS) from an electroplating industry. Direct Blue 85 dye (DB) was used in the preparation of the synthetic wastewater. Firstly, adsorption kinetics and equilibrium were studied, in respect to many factors (temperature, pH, WS dosage and presence of salts and dyeing auxiliary chemicals in the aqueous media). At 25 °C and pH 4, 7 and 10, maximum DB adsorption capacities in aqueous solution were 600, 339 and 98.7 mg/g, respectively. These values are quite considerable, compared to other reported in literature, but proved to be significantly reduced by the presence of dyeing auxiliary chemicals in the wastewater. The simulated textile wastewater treatment in SBR led to BOD 5 removals of 53–79%, but color removal was rather limited (10–18%). The performance was significantly enhanced by the addition of WS, with BOD 5 removals above 91% and average color removals of 60–69%

  6. Treatment of a simulated textile wastewater in a sequencing batch reactor (SBR) with addition of a low-cost adsorbent

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Sílvia C.R., E-mail: scrs@fe.up.pt; Boaventura, Rui A.R.

    2015-06-30

    Highlights: • Treating textile dyeing effluents by SBR coupled with waste sludge adsorption. • Metal hydroxide sludge: a good adsorbent for a direct textile dye. • Good adsorption capacities were found with the low-cost adsorbent. • Adsorbent performance considerably reduced by auxiliary products. • Color removal complies with discharge limits. - Abstract: Color removal from textile wastewaters, at a low-cost and consistent technology, is even today a challenge. Simultaneous biological treatment and adsorption is a known alternative to the treatment of wastewaters containing biodegradable and non-biodegradable contaminants. The present work aims at evaluating the treatability of a simulated textile wastewater by simultaneously combining biological treatment and adsorption in a SBR (sequencing batch reactor), but using a low-cost adsorbent, instead of a commercial one. The selected adsorbent was a metal hydroxide sludge (WS) from an electroplating industry. Direct Blue 85 dye (DB) was used in the preparation of the synthetic wastewater. Firstly, adsorption kinetics and equilibrium were studied, in respect to many factors (temperature, pH, WS dosage and presence of salts and dyeing auxiliary chemicals in the aqueous media). At 25 °C and pH 4, 7 and 10, maximum DB adsorption capacities in aqueous solution were 600, 339 and 98.7 mg/g, respectively. These values are quite considerable, compared to other reported in literature, but proved to be significantly reduced by the presence of dyeing auxiliary chemicals in the wastewater. The simulated textile wastewater treatment in SBR led to BOD{sub 5} removals of 53–79%, but color removal was rather limited (10–18%). The performance was significantly enhanced by the addition of WS, with BOD{sub 5} removals above 91% and average color removals of 60–69%.

  7. Investigation of Electrocoagulation Process Efficiency for Color Removal from Polyacrylic Textile Industrial astewater

    Directory of Open Access Journals (Sweden)

    2013-08-01

    Full Text Available Dyes due to coloring nature are appearance pollutants and destroys the transparency and aesthetic quality of surface waters even at relatively low concentration. Several processes have been used for dye removal from wastewater. In recent years, electrochemical methods have been successfully employed to treat dying wastewater.In this study, the electrocoagulation method with aluminum electrodes were used for polyacrylic textile wastewater treatment. COD of wastewater was 1400mg/l. This study was conducted in laboratory scale. The sample was placed in to the electrochemical reactor contains 4 electrodes. The electrodes were connected to a DC power supply. Then the effect of the three operational parameters, electrolysis time (20-60 minutes, electrical applied current (0.5-2.5 Ampere and pH (4-9 on color and COD removal efficiency has been investigated. The results showed that the color and COD removal efficiency is a direct relation with increasing of the reaction time and inverse relation with increase of pH. Optimum operation conditions were in applied current of 1.5 A, the retention time of 60 minutes and pH of 4. In this condition, color and COD removals were 86% and 85%, respectively. This study showed that electrocoagulation process is an effective and efficient method to treatment of polyacrylic textile wastewater.

  8. Removal of vertigo blue dyes from Batik textile wastewater by adsorption onto activated carbon and coal bottom ash

    Science.gov (United States)

    Kusmiyati, L., Puspita Adi; Deni, V.; Robi Indra, S.; Islamica, Dlia; Fuadi, M.

    2016-04-01

    Removal of vertigo blue dye from batik textile wastewater was studied by adsorptionprocess onto activated carbon (AC) and coal bottom ash (CBA).The influence of experimental conditions (pH solution, dye concentration, and contact time) were studied on the both adsorbents. At equilibrium conditions, the data were fitted to Langmuir and Freundlich adsorption models. The maximum adsorption capacity calculated from the Langmuir model for carbon active was 6.29mg/g at pH that found to be considerably higher than that obtained for coal bottom ash 3.72mg/g pH 9. From Freundlich model, the maximum adsorption capacity is less for coal bottom ash (pH 9) than that for carbon active (pH4).

  9. Moringa oleifera-mediated coagulation of textile wastewater and its biodegradation using novel consortium-BBA grown on agricultural waste substratum.

    Science.gov (United States)

    Bedekar, Priyanka A; Bhalkar, Bhumika N; Patil, Swapnil M; Govindwar, Sanjay P

    2016-10-01

    Generation of secondary sludge is a major concern of textile dye removal by coagulation process. Combinatorial coagulation-biodegradation treatment system has been found efficient in degradation of coagulated textile dye sludge. Moringa oleifera seed powder (700 mg L -1 ) was able to coagulate textile dyestuff from real textile wastewater with 98 % color removal. Novel consortium-BBA was found to decolorize coagulated dye sludge. Parameters that significantly affect coagulation process were optimized using response surface methodology. The bench-scale stirred tank reactor (50-L capacity) designed with optimized parameters for coagulation process could efficiently remove 98, 89, 78, and 67 % of American Dye Manufacturer's Institute (ADMI) in four repetitive cycles, respectively. Solid-state fermentation composting reactor designed to treat coagulated dye sludge showed 96 % removal of dye within 10 days. Coagulation of dyes from textile wastewater and degradation of coagulated dye sludge were confirmed by Fourier transform infrared spectroscopy (FTIR) analysis. Cell morphology assay, comet assay, and phytotoxicity confirmed the formation of less toxic products after coagulation and degradation mechanism.

  10. COLOR POLLUTION CONTROL IN TEXTILE DYEING INDUSTRY ...

    African Journals Online (AJOL)

    a

    tannery sludge derived activated carbon is lower compared with commercial ... industrial solid waste for the treatment of wastewater is a win-win strategy ..... The authors are thankful to the management of VIT University, Vellore, India for ...

  11. Usage of FTIR-ATR as Non-Destructive Analysis of Selected Toxic Dyes

    Science.gov (United States)

    Bartošová, Alica; Blinová, Lenka; Sirotiak, Maroš; Michalíková, Anna

    2017-06-01

    The degradation of the environment which is due to the discharge of polluting wastewater from industrial sources poses a real problem in several countries. Textile industries use large volumes of water in their operations, discharging thus large volume of wastewater into the environment, most of which is untreated. The wastewater contains a variety of chemicals from various stages of process operations, including desizing, scouring, bleaching and dyeing. The main purpose of this paper is to introduce Infrared Spectrometry with Fourier transformation as a non-destructive method for study, identifation and rapid determination of selected representatives of cationic (Methylene Blue), azo (Congo Red, Eriochrome Black T) and nitroso (Naphthol Green B) dyes. In conjunction with the ATR technique, FTIR offers a reliable detection method of dyes without extraction by other dangerous substances. Spectral interpretation of dye spectra revealed valuable information about the identification and characterization of each group of dyes.

  12. Fashion marketing in textile and clothing industry

    OpenAIRE

    Alica Grilec Kaurić

    2009-01-01

    Fashion marketing explores connection between fashion design and marketing including development, promotion, sales and price aspects of fashion industry. Successful fashion marketing managers are aware that the most important fashion marketing elements are customer trend identification, building strong brands and creating positive image of the producers. This paper presents the findings of a research conducted for the purpose of identifying trends in marketing sector in textile and clothing i...

  13. Decolorization of industrial synthetic dyes using engineered Pseudomonas putida cells with surface-immobilized bacterial laccase

    Directory of Open Access Journals (Sweden)

    Wang Wei

    2012-06-01

    Full Text Available Abstract Background Microbial laccases are highly useful in textile effluent dye biodegradation. However, the bioavailability of cellularly expressed or purified laccases in continuous operations is usually limited by mass transfer impediment or enzyme regeneration difficulty. Therefore, this study develops a regenerable bacterial surface-displaying system for industrial synthetic dye decolorization, and evaluates its effects on independent and continuous operations. Results A bacterial laccase (WlacD was engineered onto the cell surface of the solvent-tolerant bacterium Pseudomonas putida to construct a whole-cell biocatalyst. Ice nucleation protein (InaQ anchor was employed, and the ability of 1 to 3 tandemly aligned N-terminal repeats to direct WlacD display were compared. Immobilized WlacD was determined to be surface-displayed in functional form using Western blot analysis, immunofluorescence microscopy, flow cytometry, and whole-cell enzymatic activity assay. Engineered P. putida cells were then applied to decolorize the anthraquinone dye Acid Green (AG 25 and diazo-dye Acid Red (AR 18. The results showed that decolorization of both dyes is Cu2+- and mediator-independent, with an optimum temperature of 35°C and pH of 3.0, and can be stably performed across a temperature range of 15°C to 45°C. A high activity toward AG25 (1 g/l with relative decolorization values of 91.2% (3 h and 97.1% (18 h, as well as high activity to AR18 (1 g/l by 80.5% (3 h and 89.0% (18 h, was recorded. The engineered system exhibited a comparably high activity compared with those of separate dyes in a continuous three-round shake-flask decolorization of AG25/AR18 mixed dye (each 1 g/l. No significant decline in decolorization efficacy was noted during first two-rounds but reaction equilibriums were elongated, and the residual laccase activity eventually decreased to low levels. However, the decolorizing capacity of the system was easily retrieved

  14. Textile dyes removal from aqueous solution using Opuntia ficus-indica fruit waste as adsorbent and its characterization.

    Science.gov (United States)

    Peláez-Cid, A A; Velázquez-Ugalde, I; Herrera-González, A M; García-Serrano, J

    2013-11-30

    For this research, three different adsorbents, one untreated and two chemically activated, were prepared from Opuntia ficus-indica fruit waste. By the construction of adsorption isotherms, its adsorption capabilities and the viability of its use in the removal of textile basic and direct type dyes were determined. It was found that the adsorbent with the most adsorption capacity for basic dyes was the one activated with NaClO, and, for direct dyes, it was the one activated with NaOH. Langmuir and Freundlich equations isotherms were applied for the analysis of the experimental data. It was found that the Freundlich model best described the adsorption behavior. The adsorption capacity was improved when the pH of the dye solution had an acid value. The specific surface area of the adsorbents was calculated by means of methylene blue adsorption at 298 K to stay within a range between 348 and 643 m(2) g(-1). The FTIR spectroscopic characterization technique, the SEM, the point of zero charge, and the elemental analysis show the chemical and physical characteristics of the studied adsorbents, which confirm the adsorption results obtained. Copyright © 2013 Elsevier Ltd. All rights reserved.

  15. ROMANIAN TEXTILES AND CLOTHING INDUSTRY – PRESENT AND PERSPECTIVES

    Directory of Open Access Journals (Sweden)

    Ovidiu FOLCUT

    2009-12-01

    Full Text Available In January 2007 Romania joined the EU. Since then its current import duties for clothing and textiles has dropped a full 10% to between 6% and 8%. Consequently, import and re-export opportunities for Hong Kong, the Chinese mainland and other Asian suppliers are expected to increase, according to local Romanian importers. Chinese mainland firms are said to have invested US$254 million in the Romanian economy, but no details are available about the proportion directly invested in the clothing and textile sectors. Romania is now a lesser force in the garment and textile industry than it used to be, where it comes to feeding the EU market - even though the country is still the largest producer of such goods in Central and Eastern Europe, ahead of comparable economies such as Ukraine and Bulgaria. Romania also easily outcompetes more expensive labour in Hungary and Poland, neither of which are now considered contenders for price-sensitive trades, say Romanian analysts.

  16. pH effect on decolorization of raw textile wastewater polluted with reactive dyes by advanced oxidation with uv/h2o2

    NARCIS (Netherlands)

    Racyte, J.; Rimeika, M.; Bruning, H.

    2009-01-01

    The effectiveness of the advanced oxidation process (UV/H2O2) in decolorizing real textile wastewater polluted with commercial reactive dyes - Reactive Yellow 84 and Reactive Red 141 was investigated. All the experiments were performed in a lab-scale reactor with the original high pH of the

  17. EFFECT OF UV IRRADIATION ON THE DYEING OF COTTON FABRIC WITH REACTIVE BLUE 204

    Directory of Open Access Journals (Sweden)

    ROŞU Liliana

    2017-05-01

    Full Text Available Reactive dyes are synthetic organic compounds used on a wide scale in textile industry, for painting materials of different types and compositions (e.g. 100% cotton, wool, natural satin, viscose, synthetic fibres. Reactive dyes are solid compounds (powders completely water soluble at normal temperature and pressure conditions. Their structures contain chromophore groups, which generate colour, and auxochrome groups, which determine the compounds water solubility and the capacity to fix to the textile fiber. Such organic compounds absorb UV-Vis radiations at specific wavelengths, corresponding to maximum absorbtion peaks, in both solution and dyed fiber. The human organism, through the dyed clothing, comes in direct contact with those dyes which can undergo modifications once exposed to UV radiations, having the posibility to reach the organism via cutanated transport. As it is known, the provoked negative effects are stronger during summer when UV radiations are more intense and in order to reduce their intensity dark coloured clothing is avoided. Dyes can be transformed in compounds which are easily absorbed into the skin. Some of these metabolites can be less toxic than the original corresponding dye, whilst others, such as free radicals, are potentially cancerous. Knowledge of the biological effects of the organic dyes, reactive dyes in particular, correlated with their structural and physical characteristics, permanently consists an issue of high scientific and practical interest and its solution may contribute in the diminishing of risk factors and improving of population health. UV radiation influence on the structural and colour modifications of textile materials were studied. Colour modifications are due to structural changes in aromatic and carbonil groups. In most cases photo-oxidative processes were identified in the dye structure. Dyeing was performed using non-irradiated and irradiated cotton painted with reactive blue dye 204.

  18. Electron beam irradiation and zeolites adsorption applied to dyeing effluents

    International Nuclear Information System (INIS)

    Higa, Marcela C.; Fungaro, Denise A.; Somessari, Elizabeth S.R.; Magdalena, Carina P.; Grosche, Lucas C.; NNeto, Antonio C.; Borrely, Sueli I.

    2007-01-01

    Wastewater generated from the textile industries contain large amount of azo dyes and many of them present low biodegradability capability. Today several countries are facing with evidences that water pollution is related to toxicity, mutagenicity and carcinogenic nature. Once reactive dyes are commercial products they will be discharged to the waterways and rivers causing ecological damages and health problems. The aim of this paper was to consider the potential of two techniques for colour and toxicity removal: ionizing radiation and adsorption by zeolites synthesized from fly ash. Real effluents from chemical and textile industries (hardly coloured) were submitted to radiation and adsorption using zeolites. It was necessary to dilute some effluents prior the treatments in order to get any success. When electrons irradiation was performed radiation doses applied were from 0.5 kGy up to 20 kGy. This radiation process accounted for a partial decolouring as higher doses were implemented. Coal fly ashes were used as starting material for zeolite synthesis by means of hydrothermal treatment with alkaline medium. The adsorption was performed by batch experiments. It was obtained about 77% - 90% color removal from dye wastewater after 24h of contact time with two types of zeolite. The irradiation accounted for 72% of the initial toxicity. The ionizing radiation and adsorption by zeolites synthesized from fly ash can be used as an alternative for the treatment of aqueous waste containing dyes. (author)

  19. Textile Resource Conservation Final Report CRADA No. TC-0699-93

    Energy Technology Data Exchange (ETDEWEB)

    Cooper, John [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); McCreight, Dan J. [Institute of Textile Technology, Charlottesville, VA (United States)

    2018-01-22

    This project was undertaken to develop and demonstrate on a pilot scale the use of electro-osmotic transport to increase the efficiency of textiles wet processing operations. In particular, we sought to develop a means of rinsing textiles to remove material entrapped between the individual fibers that constitute a yarn. Material trapped within the yarn is slow to exchange with rinse water flowing primarily in the open weave are abetween the yarns. The application of an external field (strength, 5-50 kV /m) requires only a few volts for most fabric thicknesses. This field is sufficient to promote a rapid exchange of material to enhance rinsing and reduce the water required for rinsing from about 20 kg/kg-fabric to 3-6 kg/kg-fabric. We successfully developed technical and economic models of application of the process to the rinsing of many materials of industrial importance, including dyes, tints, chemicals, detergents and dye electrolytes. We demonstrated the process on a pilot plant scale using a translator designed in cooperation with Milliken and Company (Spartanburg, SC).

  20. Characterisation of chemical components for identifying historical Chinese textile dyes by ultra high performance liquid chromatography – photodiode array – electrospray ionisation mass spectrometer

    NARCIS (Netherlands)

    Han, J.; Wanrooij, J.; van Bommel, M.; Quye, A.

    2017-01-01

    This research makes the first attempt to apply Ultra High Performance Liquid Chromatography (UHPLC) coupled to both Photodiode Array detection (PDA) and Electrospray Ionisation Mass Spectrometer (ESI–MS) to the chemical characterisation of common textile dyes in ancient China. Three different

  1. Jobs in Search of Workers. Preparing Students for Textile and Apparel Industry Jobs.

    Science.gov (United States)

    Warfield, Carol L.; Barry, Mary E.

    1991-01-01

    At an Alabama conference, state administrators, textile and apparel industry representatives, and community, junior, and technical college faculty identified the skill needs of the industry, existing college programs, and ways for industry and education to cooperate in meeting the labor force development requirements of the industry. (SK)

  2. Semi-industrial production of methane from textile wastewaters

    Energy Technology Data Exchange (ETDEWEB)

    Opwis, Klaus; Mayer-Gall, Thomas; Gutmann, Jochen S. [Deutsches Textilforschungszentrum Nord-West e.V., Krefeld (DE)] (and others)

    2012-12-15

    The enzymatic desizing of starch-sized cotton fabrics leads to wastewaters with an extremely high chemical oxygen demand due to its high sugar content. Nowadays, these liquors are still disposed without use, resulting in a questionable ecological pollution and high emission charges for cotton finishing manufacturers. In this paper, an innovative technology for the production of energy from textile wastewaters from cotton desizing was developed. Such desizing liquors were fermented by methane-producing microbes to biogas. For this purpose, a semi-industrial plant with a total volume of more than 500 L was developed and employed over a period of several weeks. The robust and trouble-free system produces high amounts of biogas accompanied by a significant reduction of the COD of more than 85%. With regard to growing standards and costs for wastewater treatment and disposal, the new process can be an attractive alternative for textile finishing enterprises in wastewater management, combining economic and ecological benefits. Moreover, the production of biogas from textile wastewaters can help to overcome the global energy gap within the next decades, especially with respect to the huge dimension of cotton pretreatment and, therefore, huge desizing activities worldwide.

  3. Treatment and kinetic modelling of a simulated dye house effluent by enzymatic catalysis.

    Science.gov (United States)

    Cristóvão, Raquel O; Tavares, Ana P M; Loureiro, José M; Boaventura, Rui A R; Macedo, Eugénia A

    2009-12-01

    Biocatalytic treatment of a synthetic dye house effluent, simulating a textile wastewater containing various reactive dyestuffs (Reactive Yellow 15, Reactive Red 239 and Reactive Black 5) and auxiliary chemicals, was investigated in a batch reactor using a commercial laccase. A high decolourisation (above 86%) was achieved at the maximum wavelength of Reactive Black 5. The decolourisation at the other dyes wavelengths (above 63% for RY15 and around 41% for RR239) and the total decolourisation based on all the visible spectrum (around 55%) were not so good, being somewhat lower than in the case of a mixture of the dyes (above 89% for RB5, 77% for RY15, 68% for RR239 and above 84% for total decolourisation). Even so, these results suggest the applicability of this method to treat textile dyeing wastewaters. Kinetic models were developed to simulate the synthetic effluent decolourisation by commercial laccase. The kinetic constants of the models were estimated by minimizing the difference between the predicted and the experimental time courses. The close correlation between the experimental data and the simulated values seems to demonstrate that the models are able to describe with remarkable accuracy the simulated effluent degradation. Water quality parameters such as TOC, COD, BOD(5) and toxicity were found to be under the maximum permissible discharge limits for textile industries wastewaters.

  4. Strategies implemented by the textile industry in response to natural-gas curtailments

    Energy Technology Data Exchange (ETDEWEB)

    Schreibeis, R.L.

    1980-01-01

    An examination is made of specific activities undertaken by textile firms in North and South Carolina and Georgia to insulate themselves against production losses resulting from natural gas curtailments. Results of the research effort focusing on investigating patterns or trends of precautionary activities undertaken by the textile industry in response to fuel interruptions are presented. Chapter II delineates the scope of the project, research design, and nature of the textile industry. One hundred candidate firms for detailed study were identified and 34 discussed their alternate fuel strategies. Information obtained was analyzed by means of two statistical analysis techniques. Methods employed and results are described in Chapter III. Overall results are presented in Chapter IV. Variations in the strategies implemented by various concerns were accounted for in terms of geographic location, plant size, plant type, and the duration and extent of curtailment impacts. Ranges of expenditures for short- and long-term strategies are identified.

  5. Towards the identification of dyestuffs in Early Iron Age Scandinavian peat bog textiles

    DEFF Research Database (Denmark)

    Mannering, Ulla; Gleba, Margarita; Vanden Berghe, Ina

    2009-01-01

    A large systematic dye investigation of prehistoric Danish and Norwegian bog textiles was carried out using high performance liquid chromatography with photo diode array detection. After the selection of the most suitable protocol for dye extraction and HPLC analysis for this specific group of ar...... of biological dye sources in Early Iron Age Scandinavia. The results clearly indicate that most Scandinavian peat bog textiles originally were dyed and that already during the 1st millennium BC, the populations in Scandinavia were familiar with the dyeing technology....

  6. Energy management technologies: special focus on textile industry

    International Nuclear Information System (INIS)

    Dayo, F.B.O.

    2000-08-01

    requirement in international competitiveness. The focus of this paper is the review of energy management technologies that can be used to achieve energy efficiency improvement objectives in textile manufacturing. The paper is arranged as follows: in section 2, the characteristics of energy consumption in textile manufacturing are presented; energy efficiency improvement technology options for the textile industry are discussed in section 3, section 4 covers a discussion of process specific technologies for improving energy use efficiency in textile manufacturing; the paper is concluded in section 5 with salient recommendation for promoting rational use of energy in the Nigerian Textile Industrial Sector

  7. Ni/Fe and Mg/Fe layered double hydroxides and their calcined derivatives: preparation, characterization and application on textile dyes removal

    Directory of Open Access Journals (Sweden)

    Rachid Elmoubarki

    2017-07-01

    Full Text Available In this study, Mg/Fe and Ni/Fe layered double hydroxides (LDHs with molar ratio (M2+/Fe3+ of 3 and intercalated with carbonate ions were synthesized by co-precipitation method. The as-synthesized materials and their calcined products (CLDHs were characterized by X-ray diffraction (XRD, Fourier transform infrared spectroscopy (FT-IR, thermo-gravimetric and differential thermal analyses (TGA–DTA, transmission electron microscopy coupled with energy dispersive X-ray spectroscopy (TEM-EDX, inductively coupled plasma (ICP and elemental chemical analysis CHNSO. The materials were used as adsorbents for the removal availability of textile dyes from aqueous solution. Methylene blue (MB and malachite green (MG, representative of cationic dyes, and methyl orange (MO representative of anionic dyes were used as model molecules. Adsorption experiments were carried out under different parameters such as contact time, temperature, initial dyes concentration and solution pH. Experimental results indicate that CLDHs had much higher adsorption capacities compared to LDHs. Adsorption kinetic data fitted well the pseudo-second order kinetic model. The process was spontaneous, endothermic for cationic dyes and exothermic for the anionic dye. Equilibrium sorption data fitted the Langmuir model instead of Freundlich model.

  8. Minimizing Freshwater Consumption in the Wash-Off Step in Textile Reactive Dyeing by Catalytic Ozonation with Carbon Aerogel Hosted Bimetallic Catalyst

    Directory of Open Access Journals (Sweden)

    Enling Hu

    2018-02-01

    Full Text Available In textile reactive dyeing, dyed fabrics have to be rinsed in the wash-off step several times to improve colorfastness. Thus, the multiple rinsing processes drastically increase the freshwater consumption and meanwhile generate massive waste rinsing effluents. This paper addresses an innovative alternative to recycle the waste effluents to minimize freshwater consumption in the wash-off step. Accordingly, catalytic ozonation with a highly effective catalyst has been applied to remedy the waste rinsing effluents for recycling. The carbon aerogel (CA hosted bimetallic hybrid material (Ag–Fe2O3@CA was fabricated and used as the catalyst in the degradation of residual dyes in the waste rinsing effluents by ozonation treatments. The results indicate the participation of Ag–Fe2O3@CA had strikingly enhanced the removal percentage of chemical oxidation demand by 30%. In addition, it has been validated that waste effluents had been successfully reclaimed after catalytic ozonation with Ag–Fe2O3@CA. They could be additionally reused to reduce freshwater consumption in the wash-off step, but without sacrificing the color quality of corresponding fabrics in terms of color difference and colorfastness. This study may be the first to report the feasibility of catalytic ozonation in minimization of freshwater consumption in the wash-off step in textile reactive dyeing.

  9. Electron beam irradiation of textile effluents and non-ionic ethoxylated surfactant for toxicity and color removal

    Energy Technology Data Exchange (ETDEWEB)

    Sole, Stephanie V. Del; Garcia, Vanessa S.G.; Boiani, Nathalia F.; Rosa, Jorge M.; Andrade e Silva, Leonardo G. de; Borrely, Sueli I., E-mail: vanessagranadeiro@gmail.com, E-mail: steh.vdsole@gmail.com, E-mail: jotarosa@hotmail.com [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); SENAI, Faculdade de Tecnologia Antoine Skaf, Sao Paulo, SP (Brazil)

    2017-11-01

    Textile industry has an expressive scenario in the world economy and Brazil is the 5{sup th} in the textile production. By 2015, Brazilian textile production represented US $ 39.3 billion, accounting for more than 1.8 million tons of fabric (ABIT, 2017). The effluents from textile industry are highlighted by quantity of wastewater discharged and variety of substances (dyes, bleaching agents, surfactants, salts, acids, among others). Such compounds often prove to be toxic to aquatic biota. This present study aims to assess toxicity of whole effluents, before and after irradiation (by electron beam accelerator, EBI). In addition, the reduction of the effluent color after irradiation is also very important. Daphnia similis and Vibrio fischeri were the biological systems applied for toxicity evaluations. Previous results demonstrated the surfactant as the main toxic compound, in the untreated and irradiated forms, EC 50 = 0.44 ppm ± 0.02 (untreated); EC 50 = 0.46 % ± 0.07 (irradiated). The irradiation was effective in reducing the color of the effluent, starting from 0.5 kGy. EB radiation may be proposed as an alternative treatment for the final effluent from textile processing, mainly for reuse purposes. (author)

  10. Electron beam irradiation of textile effluents and non-ionic ethoxylated surfactant for toxicity and color removal

    International Nuclear Information System (INIS)

    Sole, Stephanie V. Del; Garcia, Vanessa S.G.; Boiani, Nathalia F.; Rosa, Jorge M.; Andrade e Silva, Leonardo G. de; Borrely, Sueli I.

    2017-01-01

    Textile industry has an expressive scenario in the world economy and Brazil is the 5"t"h in the textile production. By 2015, Brazilian textile production represented US $ 39.3 billion, accounting for more than 1.8 million tons of fabric (ABIT, 2017). The effluents from textile industry are highlighted by quantity of wastewater discharged and variety of substances (dyes, bleaching agents, surfactants, salts, acids, among others). Such compounds often prove to be toxic to aquatic biota. This present study aims to assess toxicity of whole effluents, before and after irradiation (by electron beam accelerator, EBI). In addition, the reduction of the effluent color after irradiation is also very important. Daphnia similis and Vibrio fischeri were the biological systems applied for toxicity evaluations. Previous results demonstrated the surfactant as the main toxic compound, in the untreated and irradiated forms, EC 50 = 0.44 ppm ± 0.02 (untreated); EC 50 = 0.46 % ± 0.07 (irradiated). The irradiation was effective in reducing the color of the effluent, starting from 0.5 kGy. EB radiation may be proposed as an alternative treatment for the final effluent from textile processing, mainly for reuse purposes. (author)

  11. Textile industry can be less pollutant: introducing naturally colored cotton

    Directory of Open Access Journals (Sweden)

    Solimar Garcia

    2014-07-01

    Full Text Available 800x600 Studies in agribusiness and textile industry, both involved with the production of manufacturing fashion present insufficient development for new products that could represent water savings and reduction of chemical effluents, making this production chain a sustainable business. This paper introduces the colored and organic cotton as an alternative to foster colored cotton producing farmers and improving the concept of sustainability in the textile sector. Results show that the increase in the production of colored and organic cotton, may result in reduction of water use, and consequent reduction in the disposal of effluents in nature. As the colored and organic cotton is produced by small farmers, governmental agencies need to participate in the effort of improving its production and distribution, providing the needed infrastructure to meet the increasing market. This would slowly encourage the reduction of white cotton consumption in exchange for this naturally colored product. The water used, and consequent polluted discharge in the use of colored cotton in the textile industry might be reduced by 70%, assuming a reduction of environmental impact of 5% per year would represent expressive numbers in the next ten years. Normal 0 21 false false false ES X-NONE X-NONE

  12. Valorization of Waste Obtained from Oil Extraction in Moringa Oleifera Seeds: Coagulation of Reactive Dyes in Textile Effluents

    OpenAIRE

    Vilaseca, Merc?; L?pez-Grimau, V?ctor; Guti?rrez-Bouz?n, Carmen

    2014-01-01

    Moringa oleifera seeds contain about 40% of highly valued oil due to its wide range of applications, from nutritional issues to cosmetics or biodiesel production. The extraction of Moringa oil generates a waste (65%–75% of seeds weight) which contains a water soluble protein able to be used either in drinking water clarification or wastewater treatment. In this paper, the waste of Moringa oleifera extraction was used as coagulant to remove five reactive dyes from synthetic textile effluents. ...

  13. Biochemical study of some environmental pollutants dyes Part II: disperse dyes

    International Nuclear Information System (INIS)

    Shakra, S.; Ahmed, F.A.; Fetyan, N.A.

    2005-01-01

    This work was aimed to develop a method for removal of the dyes color from the textile wastewater that is well be much less costly than the other chemical or physical methods used. It therefore included: 1. Preparation of three disperses dyes. 2. Isolation of dyes degradable microorganisms from wastewater effluents and soil after adding 200 ppm of each dye individually. 3. Decolorisation and biodegradation of the dyes in liquid culture of the isolated bacteria (Bacillus thuringiensis). 4. Identification of the probable byproducts by different instruments. 5. Toxicity assessment of the dyes and their biodegraded products

  14. Usage of FTIR-ATR as Non-Destructive Analysis of Selected Toxic Dyes

    Directory of Open Access Journals (Sweden)

    Bartošová Alica

    2017-06-01

    Full Text Available The degradation of the environment which is due to the discharge of polluting wastewater from industrial sources poses a real problem in several countries. Textile industries use large volumes of water in their operations, discharging thus large volume of wastewater into the environment, most of which is untreated. The wastewater contains a variety of chemicals from various stages of process operations, including desizing, scouring, bleaching and dyeing. The main purpose of this paper is to introduce Infrared Spectrometry with Fourier transformation as a non-destructive method for study, identifation and rapid determination of selected representatives of cationic (Methylene Blue, azo (Congo Red, Eriochrome Black T and nitroso (Naphthol Green B dyes. In conjunction with the ATR technique, FTIR offers a reliable detection method of dyes without extraction by other dangerous substances.

  15. Green coconut fiber: a novel carrier for the immobilization of commercial laccase by covalent attachment for textile dyes decolourization.

    Science.gov (United States)

    Cristóvão, Raquel O; Silvério, Sara C; Tavares, Ana P M; Brígida, Ana Iraidy S; Loureiro, José M; Boaventura, Rui A R; Macedo, Eugénia A; Coelho, Maria Alice Z

    2012-09-01

    Commercial laccase formulation was immobilized on modified green coconut fiber silanized with 3-glycidoxypropyltrimethoxysilane, aiming to achieve a cheap and effective biocatalyst. Two different strategies were followed: one point (pH 7.0) and multipoint (pH 10.0) covalent attachment. The influence of immobilization time on enzymatic activity and the final reduction with sodium borohydride were evaluated. The highest activities were achieved after 2 h of contact time in all situations. Commercial laccase immobilized at pH 7.0 was found to have higher activity and higher affinity to the substrate. However, the immobilization by multipoint covalent attachment improved the biocatalyst thermal stability at 50 °C, when compared to soluble enzyme and to the immobilized enzyme at pH 7.0. The Schiff's bases reduction by sodium borohydride, in spite of causing a decrease in enzyme activity, showed to contribute to the increase of operational stability through bonds stabilization. Finally, these immobilized enzymes showed high efficiency in the continuous decolourization of reactive textile dyes. In the first cycle, the decolourization is mainly due to dyes adsorption on the support. However, when working in successive cycles, the adsorption capacity of the support decreases (saturation) and the enzymatic action increases, indicating the applicability of this biocatalyst for textile wastewater treatment.

  16. Change Processes and Future Perspectives in the Knowledge Society. The Example of Clothing and Textile Industry

    OpenAIRE

    Tobias Woll

    2006-01-01

    The paper examines change processes und future perspectives in the knowledge society. It presents the clothing and textile industry as an example for a transforming industry in a global economy. The paper reviews existing future studies, which have surveyed change processes and future developments in the clothing and textile industry. Main goals of the review are the identification of changes in work and the description of the restructuring of global value chains within the clothing and texti...

  17. Textile Dye Removal from Aqueous Solution using Modified Graphite Waste/Lanthanum/Chitosan Composite

    Science.gov (United States)

    Kusrini, E.; Wicaksono, B.; Yulizar, Y.; Prasetyanto, EA; Gunawan, C.

    2018-03-01

    We investigated various pre-treatment processes of graphite waste using thermal, mechanical and chemical methods. The aim of this work is to study the performance of modified graphite waste/lanthanum/chitosan composite (MG) as adsorbent for textile dye removal from aqueous solution. Effect of graphite waste resources, adsorbent size and lanthanum concentration on the dye removal were studied in batch experiments. Selectivity of MG was also investigated. Pre-heated graphite waste (NMG) was conducted at 80°C for 1 h, followed by mechanical crushing of the resultant graphite to 75 μm particle size, giving adsorption performance of ˜58%, ˜67%, ˜93% and ˜98% of the model dye rhodamine B (concentration determined by UV-vis spectroscopy at 554 nm), methyl orange (464 nm), methylene blue (664 nm) and methyl violet (580 nm), respectively from aqueous solution. For this process, the system required less than ˜5 min for adsorbent material to be completely saturated with the adsorbate. Further chemical modification of the pre-treated graphite waste (MG) with lanthanum (0.01 – V 0.03 M) and chitosan (0.5% w/w) did not improve the performance of dye adsorption. Under comparable experimental conditions, as those of the ‘thermal-mechanical-pre-treated-only’ (NMG), modification of graphite waste (MG) with 0.03 M lanthanum and 0.5% w/w chitosan resulted in ˜14%, ˜47%, ˜72% and ˜85% adsorption of rhodamine B, methyl orange, methylene blue and methyl violet, respectively. Selective adsorption of methylene blue at most to ˜79%, followed by methyl orange, methyl violet and rhodamine B with adsorption efficiency ˜67, ˜38, and ˜9% sequentially using MG with 0.03 M lanthanum and 0.5% w/w chitosan.

  18. Acoustic textiles

    CERN Document Server

    Nayak, Rajkishore

    2016-01-01

    This book highlights the manufacturing and applications of acoustic textiles in various industries. It also includes examples from different industries in which acoustic textiles can be used to absorb noise and help reduce the impact of noise at the workplace. Given the importance of noise reduction in the working environment in several industries, the book offers a valuable guide for companies, educators and researchers involved with acoustic materials.

  19. Determination of Metals Present in Textile Dyes Using Laser-Induced Breakdown Spectroscopy and Cross-Validation Using Inductively Coupled Plasma/Atomic Emission Spectroscopy

    Directory of Open Access Journals (Sweden)

    K. Rehan

    2017-01-01

    Full Text Available Laser-induced breakdown spectroscopy (LIBS was used for the quantitative analysis of elements present in textile dyes at ambient pressure via the fundamental mode (1064 nm of a Nd:YAG pulsed laser. Three samples were collected for this purpose. Spectra of textile dyes were acquired using an HR spectrometer (LIBS2000+, Ocean Optics, Inc. having an optical resolution of 0.06 nm in the spectral range of 200 to 720 nm. Toxic metals like Cr, Cu, Fe, Ni, and Zn along with other elements like Al, Mg, Ca, and Na were revealed to exist in the samples. The %-age concentrations of the detected elements were measured by means of standard calibration curve method, intensities of every emission from every species, and calibration-free (CF LIBS approach. Only Sample 3 was found to contain heavy metals like Cr, Cu, and Ni above the prescribed limit. The results using LIBS were found to be in good agreement when compared to outcomes of inductively coupled plasma/atomic emission spectroscopy (ICP/AES.

  20. Sustainable Supply Chain Management Implementation–Enablers and Barriers in the Textile Industry

    Directory of Open Access Journals (Sweden)

    Nelly Oelze

    2017-08-01

    Full Text Available The distinct definition of accordance in the perceived barriers and enablers for sustainable supply chain management (SSCM policy implementation has been the subject of various research studies, but a distinct focus on the textile sector has been the object of limited previous attention. However, it has been found that it affects the approach to developments in company approaches to sustainable supply chain management within that industry. This article presents the results of an in-depth comparative case study analysis, drawing on 23 interviews with managers of 10 companies from the textile industry. The analysis demonstrates that specific modes of collaboration can both enable an effective SSCM and diminish barriers for policy implementation. The width and depth varies between a collaborative management approach for an effective internal SSCM versus industry collaboration and buyer supplier collaboration to address external barriers and enablers.

  1. Cleaner production options for reducing industrial waste: the case of batik industry in Malang, East Java-Indonesia

    Science.gov (United States)

    Sirait, M.

    2018-01-01

    The aim of this research is to conduct cleaner production options for improving the environmental performance during the production of batik industry, the case of UKM batik, Malang, East Java. Batik industry is one of small and medium textile industry which has contribution to economic growth in Malang. However, during production the batik, it generates wastewater that has potential to decrease the environmental performance. Wastewater from Celaket batik industry has BOD, COD, TSS, and pH level is far larger than the threshold of water quality standard as a result of use chemical substance during the dyes processing. In order to prevent generating wastewater, this study utilized cleaner production options, such as substitution of input material.Substitution of input material for dyes process was implemented by replacement chemical dyes (e.g.indigosol, nafthol, rapid) with natural dyes (e.g. Indigofero Tintoria). Modifying of technology/equipment was conducted by developing wastewater treatment equipment to reduce waste of batik production. The implementation of this strategy was carried out by changing input material from chemical dyes with natural dyes. The CP uptake could reduce significantly the environmental impact in term of reduction of COD, BOD, and TSS.

  2. Problems with textile wastewater discharge

    International Nuclear Information System (INIS)

    Rantala, Pentti

    1987-01-01

    The general character of textile industry wastewaters is briefly discussed. General guidelines and practice in Finland when discharging textile industry wastewaters to municipal sewer systems is described. A survey revealed that most municipalities experience some problems due to textile industry wastewaters. Pretreatment is not always practiced and in some cases pretreatment is not operated efficiently. (author)

  3. Fashion in the golden age of Yugoslavian 20th century textile and clothing industry

    Science.gov (United States)

    Todorović, T.; Pavko-Čuden, A.

    2017-10-01

    The development of fashion seems to have occurred in societies which were changing, where that change is valued by some group within the society, and social mobility was possible. Fashion is not possible in totally egalitarian society nor in a rigid hierarchy. The paper presents Slovenian/Yugoslavian fashion design based on local industrial and educational capacities in the golden age of the textile and clothing branch. The paradox of Western style fashion in the frame of socialistic political system in commented. In the late 1940s, Yugoslav modernity transmitted through fashionable dress was mainly representational, since industry was unable to deliver fashionable dresses due to post-war poverty and backwardness. Yugoslavia’s different path toward socialism was mirrored in its different symbolic and material production of dress in comparison to that of other Eastern European countries. Although factories had been nationalised, attacks on Western fashion were never intense, and the Yugoslav regime did not establish a central dress institution to politically direct the design, production and distribution of clothes as it was the case in most Eastern European countries. The restoration and the development of the textile industry evoked a need for new jobs, specifically in textile and fashion design. The fashion scene in Slovenia/Yugoslavia started to differ from other Eastern countries. In the golden age of the national textile and clothing industry fashion collections have gone hand in hand with the European fashion.

  4. Integrated wastewater management by reuse and recycling in a textile industry: a case study in Thailand

    International Nuclear Information System (INIS)

    Javed, M.R.; Trankler, J.

    2005-01-01

    Increasing stringent environmental legislation, scarcity of resources and development of treatment and management techniques for wastewater, have made recycling and reuse feasible and economical in many industrial processes. Wastewater management by integrating all available techniques was studied for reuse and recycling in a textile industry. Cotton and silk fabrics were main products of the selected industry. Approach was divided in to five parts, to achieve the objectives of reuse and recycling: in-house water consumption evaluation, segregation study, optimizing existing WWTP, treatability study and advanced treatment for final effluent to fulfill reuse criteria. Water consumption evaluation was done by in-house survey. Segregation study was performed by analyzing different wastewater streams. Efficiency of existing WWTP for COD and BOD removal was assessed and optimized. Treatability of dye wastewater by ozonation, chemical and nanofiltration was studied. Treatment study of final effluent for TDS and color removal by nanofiltration and chemical treatment was performed. Analyses show the possibilities to conserve and optimize water consumption up to 30% in the production processes by in-house improvement. Segregation study shows that up to 15% wastewater from less polluted streams can be recycled back. Adopting separate efficient treatment techniques could fulfill reuse criteria for remaining wastewater streams (50%). (author)

  5. Industrial wastewater minimization using water pinch analysis: a case study on an old textile plant.

    Science.gov (United States)

    Ujang, Z; Wong, C L; Manan, Z A

    2002-01-01

    Industrial wastewater minimization can be conducted using four main strategies: (i) reuse; (ii) regeneration-reuse; (iii) regeneration-recycling; and (iv) process changes. This study is concerned with (i) and (ii) to investigate the most suitable approach to wastewater minimization for an old textile industry plant. A systematic water networks design using water pinch analysis (WPA) was developed to minimize the water usage and wastewater generation for the textile plant. COD was chosen as the main parameter. An integrated design method has been applied, which brings the engineering insight using WPA that can determine the minimum flowrate of the water usage and then minimize the water consumption and wastewater generation as well. The overall result of this study shows that WPA has been effectively applied using both reuse and regeneration-reuse strategies for the old textile industry plant, and reduced the operating cost by 16% and 50% respectively.

  6. THE USE OF LOANWORDS IN THE TEXTILE AND FOOTWEAR INDUSTRY

    Directory of Open Access Journals (Sweden)

    STURZA Amalia

    2015-05-01

    Full Text Available This paper focuses on the words borrowed from English, French, Italian, Turkish, Slavic nad other languages used in the textile, fashion and footwear industry. We are well aware of the fact that after the Second World War, globalization spread the English language, thus influencing more and more the language of technology, science and commerce and last but not least fashion and textile industry. With some of these words we are already so used that we do not even think to consider their origin, we take them as our own words. In the present paper we will try to clarify some of these aspects, i.e. their origin and how they were introduced into Romanian language, how popular or unpopular they are and how relevant they are for our day-to-day vocabulary. The idea of globalisation is that, with time, there will be a progressive integration of national economies which will eventually lead to a single global market, the same being true of words taken from different languages and being intregrated into our own language. The fact is that the technical vocabulary of the world nowadays tends to become global – so, more and more English lexical items achieve incontestably international status and our language makes no exception, especially among young people. Key words: loanwords, globalization, fashion, textile and footwear borrowings

  7. Low-Cost Biodegradation and Detoxification of Textile Azo Dye C.I. Reactive Blue 172 by Providencia rettgeri Strain HSL1

    Directory of Open Access Journals (Sweden)

    Harshad Lade

    2015-01-01

    Full Text Available Present study focuses on exploitation of agricultural waste wheat bran (WB as growth medium for degradation of textile azo dye C.I. Reactive Blue 172 (RB 172 using a single bacterium P. rettgeri strain HSL1 (GenBank accession number JX853768.1. The bacterium was found to completely decolorize 50 mg L−1 of dye RB 172 within 20 h at 30 ± 0.2°C under microaerophilic incubation conditions. Additionally, significant reduction in COD (85% and TOC (52% contents of dye decolorized medium was observed which suggested its mineralization. Induction in the activities of azoreductase (159% and NADH-DCIP reductase (88% provided an evidence for reductive cleavage of dye RB 172. The HPLC, FTIR, and GC-MS analysis of decolorized products confirmed the degradation of dye into various metabolites. The proposed metabolic pathway for biodegradation of RB 172 has been elucidated which showed the formation of 2 intermediate metabolites, namely, 4-(ethenylsulfonyl aniline and 1-amino-1-(4-aminophenyl propan-2-one. The acute and phytotoxicity evaluation of degraded metabolites suggests that bacterial strain favors the detoxification of dye RB 172. Thus, WB could be utilized as a low-cost growth medium for the enrichment of bacteria and their further use for biodegradation of azo dyes and its derivatives containing wastes into nontoxic form.

  8. Bioremoval of the azo dye Congo Red by the microalga Chlorella vulgaris.

    Science.gov (United States)

    Hernández-Zamora, Miriam; Cristiani-Urbina, Eliseo; Martínez-Jerónimo, Fernando; Perales-Vela, Hugo Virgilio; Ponce-Noyola, Teresa; Montes-Horcasitas, María del Carmen; Cañizares-Villanueva, Rosa Olivia

    2015-07-01

    Discharge of dye-containing wastewater by the textile industry can adversely affect aquatic ecosystems and human health. Bioremoval is an alternative to industrial processes for detoxifying water contaminated with dyes. In this work, active and inactive biomass of the microalga Chlorella vulgaris was assayed for the ability to remove Congo Red (CR) dye from aqueous solutions. Through biosorption and biodegradation processes, Chlorella vulgaris was able to remove 83 and 58 % of dye at concentrations of 5 and 25 mg L(-1), respectively. The maximum adsorption capacity at equilibrium was 200 mg g(-1). The Langmuir model best described the experimental equilibrium data. The acute toxicity test (48 h) with two species of cladocerans indicated that the toxicity of the dye in the effluent was significantly decreased compared to the initial concentrations in the influent. Daphnia magna was the species less sensitive to dye (EC50 = 17.0 mg L(-1)), followed by Ceriodaphnia dubia (EC50 = 3.32 mg L(-1)). These results show that Chlorella vulgaris significantly reduced the dye concentration and toxicity. Therefore, this method may be a viable option for the treatment of this type of effluent.

  9. An efficient process for producing economical and eco-friendly cotton textile composites for mobile industry

    Science.gov (United States)

    The mobile industry comprised of airplanes, automotives, and ships uses enormous quantities of various types of textiles. Just a few decades ago, most of these textile products and composites were made with woven or knitted fabrics that were mostly made with the then only available natural fibers, i...

  10. Green synthesis of palm oil mill effluent-based graphenic adsorbent for the treatment of dye-contaminated wastewater.

    Science.gov (United States)

    Teow, Yeit Haan; Nordin, Nadzirah Ilyiani; Mohammad, Abdul Wahab

    2018-05-12

    Textile wastewater contains methylene blue (MB), a major coloring agent in textile industry. Activated carbon (AC) is the most widely used adsorbent in removing dyes from industrial wastewater. However, high production cost of AC is the major obstacle for its wide application in dye wastewater treatment. In this study, a sustainable approach in synthesizing graphenic adsorbent from palm oil mill effluent (POME), a potential carbonaceous source, has been explored. This new development in adsorption technique is considered as green synthesis as it does not require any binder during the synthesis process, and at the same time, it helps to solve the bottleneck of palm oil industry as POME is the main cause contributed to Malaysia's water pollution problem. The synthesized GSC was characterized through XRD, FESEM, and EDX. The adsorption performance of the synthesized GSC was evaluated by adsorption of MB. The effect of initial concentration of synthetic MB solution (1-20 mg/L) and weight of GSC (5-20 g) were investigated. A remarkable change in color of synthetic MB solution from blue to crystal clear was observed at the end of adsorption study. High efficiency of the synthesized GSC for dye-contaminated wastewater treatment is concluded.

  11. The textile and clothing industry in the Danube region countries: Comparative advantages

    Directory of Open Access Journals (Sweden)

    Ignjatijević Svetlana

    2016-01-01

    Full Text Available The subject of this study is the analysis of comparative advantages of international export in the TC (textile and clothing industry of the Danube region countries with a special focus on Serbia. The aim of this study is to analyze the comparative advantage and suggest possible economic and legal measures to strengthen export. This study observed export per capita and participation of TC industry export, and measured the comparative advantage and specialization of the Danube region countries in the period between 2005 and 2013. In the course of research, we used the Balassa (RCA and Lafay (LFI indexes of comparative advantage, and the GL index and RUV index of horizontal and vertical specialization in intra-industry exchange. The research has revealed positive comparative advantage in the export of the textile industry in the Czech Republic, Germany and Slovenia. In the clothing industry export, positive comparative advantage was revealed in the cases of: Bulgaria, Hungary, Moldova, Romania, Slovakia and Serbia. The research has shown a positive comparative advantage of the TC industry sector in Serbia. The results of our research into the TC industry reveal the existence of correlation between comparative advantage and intra-industry specialization in international trade.

  12. Kinetic modelling and mechanism of dye adsorption on unburned carbon

    Energy Technology Data Exchange (ETDEWEB)

    Wang, S.B.; Li, H.T. [Curtin University of Technology, Perth, WA (Australia). Dept. of Chemical Engineering

    2007-07-01

    Textile dyeing processes are among the most environmentally unfriendly industrial processes by producing coloured wastewaters. The adsorption method using unburned carbon from coal combustion residue was studied for the decolourisation of typical acidic and basic dyes. It was discovered that the unburned carbon showed high adsorption capacity at 1.97 x 10{sup -4} and 5.27 x 10{sup -4} mol/g for Basic Violet 3 and Acid Black 1, respectively. The solution pH, particle size and temperature significantly influenced the adsorption capacity. Higher solution pH favoured the adsorption of basic dye while reduced the adsorption of acid dye. The adsorption of dye increased with increasing temperature but decreased with increasing particle size. Sorption kinetic data indicated that the adsorption kinetics followed the pseudo-second-order model. The adsorption mechanism consisted of two processes, external diffusion and intraparticle diffusion, and the external diffusion was the dominating process.

  13. Multiple approaches towards decolorization and reuse of a textile dye (VB-B) by a marine bacterium Shewanella decolorationis

    Digital Repository Service at National Institute of Oceanography (India)

    SatheeshBabu, S.; Mohandass, C.; VijayRaj, A.S.; Rajasabapathy, R.; Dhale, M.A.

    stream_size 41279 stream_content_type text/plain stream_name Water_Air_Soil_Pollut_224_1500a.pdf.txt stream_source_info Water_Air_Soil_Pollut_224_1500a.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8...     1    Author version: Water Air Soil Pollut., vol.224(4); 2013; 1500 Multiple approaches towards decolorization and reuse of a textile dye (VB-B) by a marine bacterium Shewanella decolorationis S. Satheesh Babu, C.Mohandass*, A.S.Vijay Raj, R...

  14. Radiation-induced aftertreatment of textiles

    International Nuclear Information System (INIS)

    Okada, Toshio

    1978-01-01

    Techniques to improve the properties of textiles by graft polymerization of acrylic acid, metacrylic acid, etc. on natural and synthetic fibers by irradiation of electron beam or γ ray were developed and put into practical use. Such graft polymerization by irradiation is effective technique to give synthetic fibers hydrophilic property, heat-shrinkage resistance, dye affinity, static electricity prevention, combustion resistance, etc.. Irradiation is also applied for adhesion of nonwoven fabric, coating processing of textiles, and printing processing of fabrics. Thus, the processing of textiles by radiation, especially electron beam, is effective to give new properties to textiles, but its importance has been also recognized as energy saving and public nuisance-avoiding processes. A great deal of energy reduction can be expected by electron beam irradiation method. (Kobatake, H.)

  15. Reverse osmosis treatment of wastes from the textile industry

    Energy Technology Data Exchange (ETDEWEB)

    Audran, J. [Electricite de France (EDF), 75 - Paris (France); Frizzarin, L.

    1995-09-01

    Reserve osmosis has been used in the textile industry for cleaning up effluent before sending it to the treatment plant. This process was preceded by a combination of flocculation and sedimentation. This system reduced water consumption since part of the water was reused, and also reduced the quantity of effluent to be dealt with by the treatment plant. (authors). 2 figs.

  16. Degradation of a mono sulfonated azo dye by an integrated bio sorption and anaerobic system

    International Nuclear Information System (INIS)

    Goncalves, L. C.; Campos, R.; Pinheiro, H. M.; Lopes, A.; Ferra, M. I.

    2009-01-01

    A simulated textile effluent containing a mono sulphonated azo dye was fed to an anaerobic bioreactor in which a natural adsorbent, spent brewery grains (SBG), was incorporated. SABG is a by-product of the brewing industry and could act as adsorbent as well an electron shuttle (lignin fraction) in the dye degradation mechanism. Furthermore, it can also work as a conditioner for the anaerobic biomass. The influence of the dye (Acid Orange 7, AO7) concentration (60 and 150 mg/L) and the presence of SBG in the performance of upflow anaerobic sludge blanket reactor (UASB) was evaluated. (Author)

  17. Degradation of a mono sulfonated azo dye by an integrated bio sorption and anaerobic system

    Energy Technology Data Exchange (ETDEWEB)

    Goncalves, L. C.; Campos, R.; Pinheiro, H. M.; Lopes, A.; Ferra, M. I.

    2009-07-01

    A simulated textile effluent containing a mono sulphonated azo dye was fed to an anaerobic bioreactor in which a natural adsorbent, spent brewery grains (SBG), was incorporated. SABG is a by-product of the brewing industry and could act as adsorbent as well an electron shuttle (lignin fraction) in the dye degradation mechanism. Furthermore, it can also work as a conditioner for the anaerobic biomass. The influence of the dye (Acid Orange 7, AO7) concentration (60 and 150 mg/L) and the presence of SBG in the performance of upflow anaerobic sludge blanket reactor (UASB) was evaluated. (Author)

  18. Removal of reactive blue 19 dyes from textile wastewater by pomegranate seed powder: Isotherm and kinetic studies

    Directory of Open Access Journals (Sweden)

    Mahboobeh Dehvari

    2016-01-01

    Full Text Available Aims: The aim of this study was the evaluation of adsorption kinetics and equilibrium of reactive blue 19 dyes from textile synthetic wastewater by pomegranate seed powder. Materials and Methods: This study is an experimental research, which was performed in laboratory scale. In this study, the parameters such as adsorbent dose, pH and retention time, initial concentration of dye and agitation rate have been investigated. After washing and boiling of pomegranate seeds for 2 h, they dried, milled and finally pulverized by standard ASTM sieves (40-100 mesh. Maximum adsorption wave length (λmax by spectrophotometer ultra violet/visible (model SP-3000 Plus 592 nm was determined. The Langmuir, Freundlich and Temkin isotherm models and the pseudo-first-order and pseudo-second-order kinetic models were analyzed. Results: According to results, the removal efficiency with adsorbent dose, retention time and agitation rate has a direct relation. Maximum adsorption occurred in the first 60 min. The removal efficiency with initial concentration of dye and pH of solution has indirect relation. The Freundlich isotherm fits the experimental data better than the other isotherms. It was recognized that the adsorption followed by pseudo-second-order model (R2 > 0.99. Conclusion: Based on the results, pomegranate seeds as a new natural sorbent can be used in removal of dye and other environmental pollutants with desirable absorption capacity.

  19. Production and characterization of laccase from Cyathus bulleri and its use in decolourization of recalcitrant textile dyes.

    Science.gov (United States)

    Salony; Mishra, S; Bisaria, V S

    2006-08-01

    Many fungi (particularly the white rot) are well suited for treatment of a broad range of textile dye effluents due to the versatility of the lignin-degrading enzymes produced by them. We have investigated decolourization of a number of recalcitrant reactive azo and acid dyes using the culture filtrate and purified laccase from the fungus Cyathus bulleri. For this, the enzyme was purified from the culture filtrate to a high specific activity of 4,022 IU mg(-1) protein, produced under optimized carbon, nitrogen and C/N ratio with induction by 2,6-dimethylaniline. The protein was characterized as a monomer of 58+/-5.0 kDa with carbohydrate content of 16% and was found to contain all three Cu(II) centres. The three internal peptide sequences showed sequence identity (80-92%) with laccases of a number of white rot fungi. Substrate specificity indicated highest catalytic efficiency (k(cat)/K(M)) on guaiacol followed by 2,2'-azino-bis(3-ethylthiazoline-6-sulfonic acid) (ABTS). Decolourization of a number of reactive azo and acid dyes was seen with the culture filtrate of the fungus containing predominantly laccase. In spite of no observable effect of purified laccase on other dyes, the ability to decolourize these was achieved in the presence of the redox mediator ABTS, with 50% decolourization in 0.5-5.4 days.

  20. Biodegradation of carcinogenic textile azo dyes using bacterial isolates of mangrove sediment

    Directory of Open Access Journals (Sweden)

    Guru Prasad Srinivasan

    2014-02-01

    Full Text Available Objective: To evaluate the biodegrading property against carcinogenic azo dyes using bacterial isolates of mangrove sediment. Methods: The bacterial isolates were subjected to submerged fermentation and their growth kinetics were studied. The potential strain was characterized using 16S rDNA sequencing. Results: In the present study, dye degrading bacterial colonies were isolated from the mangrove sediment samples of Parangipettai estuarine area, Tamil Nadu. Of the 30 morphologically different strains isolated, 5 showed antagonistic property. The growth kinetics of the two strains, P1 and G1, which showed potent activity were calculated. One particular isolate (P1 showing promising dye degrading potential in the submerged fermentation was further characterized. The strain was identified as Paenibacillus sp. by 16S rDNA sequencing. Conclusions: This study reveals the less explored microflora of mangrove sediments. The novel strain may further be analyzed and used in the treatment of effluent from dye industry so as to reduce the impact of carcinogenic contaminants.

  1. An Overview: Recent Development of Titanium Oxide Nanotubes as Photocatalyst for Dye Degradation

    Directory of Open Access Journals (Sweden)

    Chin Wei Lai

    2014-01-01

    Full Text Available Today, organic dyes are one of the largest groups of pollutants release into environment especially from textile industry. It is highly toxic and hazardous to the living organism; thus, the removal of these dyes prior to discharge into the environment is essential. Varieties of techniques have been employed to degrade organic dyes and heterogeneous photocatalysis involving titanium dioxide (TiO2 appears to be the most promising technology. In recent years, TiO2 nanotubes have attracted much attention due to their high surface area and extraordinary characteristics. This paper presents a critical review of recent achievements in the modification of TiO2 nanotubes for dye degradation. The photocatalytic activity on dye degradation can be further enhanced by doping with cationic or anionic dopant.

  2. Membrane technologies for water treatment and reuse in the textile industry

    DEFF Research Database (Denmark)

    Petrinić, I.; Bajraktari, Niada; Hélix-Nielsen, Claus

    2015-01-01

    technology for textile wastewater remediation. However, for all of these approaches the general issue of (bio)fouling represents a major obstacle for full-scale industrial implementation. Forward osmosis (FO) membranes have recently attracted considerable interest because the low fouling propensity of FO...

  3. Application of AzollaFiliculoides Biomass in Acid Black 1 Dye Adsorption from Aqueous Solution

    Directory of Open Access Journals (Sweden)

    Mohammad Ali Zazouli

    2014-09-01

    Full Text Available Background and purpose: The textile dyes are considered as important pollutants due to the toxicity on human and environment. Therefore, the dye removal from industrial effluents is necessary. This study evaluates the ability of Azolla for the adsorption of acid black 1 (AB1 dye from aqueous solution. Materials and Methods: This was an experimental-laboratory study. The Azolla biomass was sun dried, crushed and sieved to particle sizes in the range of 1-2 mm. Then, it treated with 0.1 M HCl for 5 h, followed by washing with distilled water, and it used as an adsorbent. The effect of study parameter was investigated, and the residues AB1 concentration was measured by DR2800 spectrophotometer at in λmax = 622 nm. Results: The results indicated that the efficiency of AB1 adsorption decreased with increased initial dye concentration. It increased with increased contact time and adsorbent. The highest adsorption efficiency was occurred at pH = 2. The equilibrium data were the best fitted on Langmuir isotherm and pseudo-second-order kinetic model. Conclusion: The Azolla could present high ability in dye removal. Therefore, it can be used as inexpensive and effective adsorbent in textile effluent treatment.

  4. Contact dermatitis in tie and dye industry workers

    Energy Technology Data Exchange (ETDEWEB)

    Mathur, N K; Mathur, A; Banerjee, K

    1985-01-01

    A survey of the Tie and Dye industry of Jodhpur City in India was made to investigate occupational dermatoses. 49 (16.6%) of 250 workers had incapacitating dermatitis. Skin lesions were seen mostly over the dorsa of the hands and fingers. 26 patients were patch tested with various dyes and chemicals; 14 were positive. Fast Red RC salt was the most potent sensitizer. Other dyes showing positive reactions were Orange GC salt, Bordeaux GP salt, Blue B salt, Red B base and naphthol.

  5. Potential applications of silk sericin, a natural protein from textile industry by-products.

    Science.gov (United States)

    Aramwit, Pornanong; Siritientong, Tippawan; Srichana, Teerapol

    2012-03-01

    Silk is composed of two major proteins, fibroin (fibrous protein) and sericin (globular, gumming protein). Fibroin has been used in textile manufacturing and for several biomaterial applications, whereas sericin is considered a waste material in the textile industry. Sericin has recently been found to activate the proliferation of several cell-lines and has also shown various biological activities. Sericin can form a gel by itself; however, after mixing with other polymers and cross-linking it can form a film or a scaffold with good characteristics that can be used in the cosmetic and pharmaceutical industries. Sericin is proven to cause no immunological responses, which has resulted in a more acceptable material for biological applications.

  6. Effect of SBR feeding strategy and feed composition on the stability of aerobic granular sludge in the treatment of a simulated textile wastewater.

    Science.gov (United States)

    Franca, R D G; Ortigueira, J; Pinheiro, H M; Lourenço, N D

    2017-09-01

    Treatment of the highly polluting and variable textile industry wastewater using aerobic granular sludge (AGS) sequencing batch reactors (SBRs) has been recently suggested. Aiming to develop this technology application, two feeding strategies were compared regarding the capacity of anaerobic-aerobic SBRs to deal with disturbances in the composition of the simulated textile wastewater feed. Both a statically fed, anaerobic-aerobic SBR and an anaerobic plug-flow fed, anaerobic-aerobic SBR could cope with shocks of high azo dye concentration and organic load, the overall chemical oxygen demand and color removal yields being rapidly restored to 80%. Yet, subsequent azo dye metabolite bioconversion was not observed, along the 315-day run. Moreover, switching from a starch-based substrate to acetate in the feed composition deteriorated AGS stability. Overall, the plug-flow fed SBR recovered more rapidly from the imposed disturbances. Further research is needed towards guaranteeing long-term AGS stability during the treatment of textile wastewater.

  7. Optimization of energy usage in textile finishing operations. Part I. The simulation of batch dyehouse activities with a general purpose computer model

    Energy Technology Data Exchange (ETDEWEB)

    Beard, J.N. Jr.; Rice, W.T. Jr.

    1980-01-01

    A project to develop a mathematical model capable of simulating the activities in a typical batch dyeing process in the textile industry is described. The model could be used to study the effects of changes in dye-house operations, and to determine effective guidelines for optimal dyehouse performance. The computer model is of a hypothetical dyehouse. The appendices contain a listing of the computer program, sample computer inputs and outputs, and instructions for using the model. (MCW)

  8. Treatment of some Textile Industrial Effluents using Dry Corn Stalk ...

    African Journals Online (AJOL)

    Corn stalk ground to various mesh sizes was used to treat textile effluents obtained from three different industries. These effluents were first pretreated with alum and then charcoal; passing the water through a column, (20cm long and 5cm diameter) containing the ground corn stalk of size diameters of 300mm, 355mm ...

  9. Four marine-derived fungi for bioremediation of raw textile mill effluents

    Digital Repository Service at National Institute of Oceanography (India)

    Verma, A; Raghukumar, C.; Verma, P.; Shouche, Y.S.; Naik, C.G.

    microorganisms and high dilutions. We report here decolorization and detoxification of two raw textile effluents, with extreme variations in their pH and dye composition, used at 20-90% concentrations by each of the four marine-derived fungi. Textile effluent A...

  10. Aerobic decolourization of two reactive azo dyes under varying ...

    African Journals Online (AJOL)

    STORAGESEVER

    2010-02-01

    Feb 1, 2010 ... Azo dyes generally resist aerobic microbial degra- dation, only organisms with specialized azo dye reducing enzymes were found to degrade azo dyes under fully aerobic ... textile mill, in sterile plastic bottles. Isolation of ...

  11. Simultaneously bio treatment of textiles and food industries effluent at difference ratios with the aid of e-beam radiation

    Science.gov (United States)

    Bakar, Khomsaton Abu; Selambakkannu, Sarala; Ting, Teo Ming; Shariff, Jamaliah

    2012-09-01

    The combination of irradiation and biological technique was used to study COD, BOD5 and colour removal of textiles effluent in the presence of food industry wastewater at two different ratios. Two biological treatment system, the first consisting a mix of unirradiated textile and food industry wastewater and the second a mix of irradiated textile wastewater and food industry wastewater were operated in parallel. The experiment was conducted by batch. For the first batch the ratio was use for textile wastewater and food industry wastewater in biological treatment was 1:1. Meanwhile, for the second batch the ratio used for textile wastewater and food industry wastewater in biological treatment was 1:2. The results obtained for the first and second batch varies from each other. After irradiation, COD reduce in textile wastewater for the both batches are roughly 29% - 33% from the unirradiated wastewater. But after undergoing the biological treatment the percentage of COD reduction for first batch and second batch was 62.1% and 80.7% respectively. After irradiation the BOD5 of textile wastewater reduced by 22.2% for the first batch and 55.1% for the second batch. But after biological treatment, the BOD5 value for the first batch was same as its initial, 36mg/l and 40.4mg/l for the second batch. Colour had decreased from 899.5 ADMI to 379.3 ADMI after irradiation and decrease to 109.3 after undergoes biological treatment for the first batch. Meantime for the batch two, colour had decreased from 1000.44 ADMI to 363.40 ADMI after irradiation and dropped to 79.20 ADMI after biological treatment. The experiment show that 1:2 ratio show better reduction on COD, BOD5 and colour, compared to the ratio of 1:1.

  12. Chlorine disinfection of dye wastewater: Implications for a commercial azo dye mixture

    International Nuclear Information System (INIS)

    Vacchi, Francine Inforçato; Albuquerque, Anjaina Fernandes; Vendemiatti, Josiane Aparecida; Morales, Daniel Alexandre; Ormond, Alexandra B.; Freeman, Harold S.; Zocolo, Guilherme Julião; Zanoni, Maria Valnice Boldrin; Umbuzeiro, Gisela

    2013-01-01

    Azo dyes, the most widely used family of synthetic dyes, are often employed as colorants in areas such as textiles, plastics, foods/drugs/cosmetics, and electronics. Following their use in industrial applications, azo dyes have been found in effluents and various receiving waters. Chemical treatment of effluents containing azo dyes includes disinfection using chlorine, which can generate compounds of varying eco/genotoxicity. Among the widely known commercial azo dyes for synthetic fibers is C.I. Disperse Red 1. While this dye is known to exist as a complex mixture, reports of eco/genotoxicity involve the purified form. Bearing in mind the potential for adverse synergistic effects arising from exposures to chemical mixtures, the aim of the present study was to characterize the components of commercial Disperse Red 1 and its chlorine-mediated decoloration products and to evaluate their ecotoxicity and mutagenicity. In conducting the present study, Disperse Red 1 was treated with chlorine gas, and the solution obtained was analyzed with the aid of LC–ESI-MS/MS to identify the components present, and then evaluated for ecotoxicity and mutagenicity, using Daphnia similis and Salmonella/microsome assays, respectively. The results of this study indicated that chlorination of Disperse Red 1 produced four chlorinated aromatic compounds as the main products and that the degradation products were more ecotoxic than the parent dye. These results suggest that a disinfection process using chlorine should be avoided for effluents containing hydrophobic azo dyes such commercial Disperse Red 1. -- Highlights: ► Aqueous solutions of Disperse Red 1 were treated with chlorine. ► The chlorination products of Disperse Red 1 were identified using LC–ESI-MS/MS. ► Daphnia and Salmonella/microsome were employed for eco/genotoxicity testing. ► The chlorinated dye was more mutagenic than the dye itself. ► Chlorination should be avoided in effluents containing azo-dyes.

  13. Analytical procedures for the determination of disperse azo dyes

    Energy Technology Data Exchange (ETDEWEB)

    Betowski, L.D.; Jones, T.L. (Environmental Protection Agency, Las Vegas, NV (USA)); Munslow, W.; Nunn, N.J. (Lockheed Engineering and Management Services Co., Las Vegas, NV (USA))

    1988-09-01

    Disperse Blue 79 is the most widely-used azo dye in the US. Its economic importance for the dye industry and textile industry is very great. Because of its use and potential for degradation to aromatic amines, this compound has been chosen for testing by the Interagency Testing Committee. The authors laboratory has been developing methods for the analytical determination of Disperse Blue 79 and any possible degradation products in wastewater. This work has been taking place in conjunction with the study of the fate of azo dyes in the wastewater treatment processes by the Water Engineering Research Laboratory of the US EPA in Cincinnati. There were various phases for this analytical development. The first step involved purifying the commercial material or presscake to obtain a standard for quantitative determination. A combination of HPLC, TLC and mass spectrometric methods was used to determine purity after extraction and column cleanup. Phase two involved the extraction of the dye from the matrices involved. The third phase was the actual testing of Disperse Blue 79 in the waste activated sludge system and anaerobic digester. Recovery of the dye and any degradation products at each sampling point (e.g., secondary effluent, waste activated sludge) was the goal of this phase.

  14. Antibacterial textiles

    NARCIS (Netherlands)

    Amrit, Usha

    2015-01-01

    The aim of this thesis was the antibacterial functionalization of textiles and its application in professional laundries. The antibacterial functionalization was meant for the various textile packages lent out by the laundry companies to their customers from hotels, hospital or food industries. The

  15. Environmental management system case study: textile wet processes

    Energy Technology Data Exchange (ETDEWEB)

    Nasreldin, A A [Engineering Researches and Industrial Technologies Council, Sudan Academy of Sciences, Khartoum (Sudan)

    2008-10-15

    Textile industry is one of the oldest industries, it started very early in the ancient ages, its grows and improves gradually at the first and then rapidly to satisfy other different need of the mankind, even for luxury purposes, this development caused damage to environment, then its need the treatment. Textile wet processes used significant quantities of water and various kind of chemicals marketed under the name textile auxiliaries, to enhance the appearance of the fabric, serviceability, and durability. The chemical contamination of textile wet processes can be a health risk for the mill workers, consumers and for the environment as well. A number of schemes have been proposed in different countries to control the textile wet processes to create better environment and protect the ecosystem from further degradation, the developing countries need to apply their designed policies from the beginning. A theoretical study for probability of application of environmental management system in textile industry, to prevent or eliminate textile industry pollution that considered as one of the largest polluters in Sudanese environment, especially after the government (industrial ministry) support and facilitate to textile industry development. Applying environmental management system can appreciably reduce the textile industry pollution as founded from the study.(Author)

  16. Environmental management system case study: textile wet processes

    International Nuclear Information System (INIS)

    Nasreldin, A.A.

    2008-10-01

    Textile industry is one of the oldest industries, it started very early in the ancient ages, its grows and improves gradually at the first and then rapidly to satisfy other different need of the mankind, even for luxury purposes, this development caused damage to environment, then its need the treatment. Textile wet processes used significant quantities of water and various kind of chemicals marketed under the name textile auxiliaries, to enhance the appearance of the fabric, serviceability, and durability. The chemical contamination of textile wet processes can be a health risk for the mill workers, consumers and for the environment as well. A number of schemes have been proposed in different countries to control the textile wet processes to create better environment and protect the ecosystem from further degradation, the developing countries need to apply their designed policies from the beginning. A theoretical study for probability of application of environmental management system in textile industry, to prevent or eliminate textile industry pollution that considered as one of the largest polluters in Sudanese environment, especially after the government (industrial ministry) support and facilitate to textile industry development. Applying environmental management system can appreciably reduce the textile industry pollution as founded from the study.(Author)

  17. Education and the Transformation of Markets and Technology in the Textile Industry. Technical Paper No. 2.

    Science.gov (United States)

    Bailey, Thomas

    This report on the textile industry focuses on the training and education of production-level textile workers--from unskilled factory hands to first-level supervisors. It is part of a larger study of the educational implications of broad economic changes, particularly the spread of microelectronic technologies, growing national and international…

  18. Ultrasound assisted enhancement in natural dye extraction from beetroot for industrial applications and natural dyeing of leather.

    Science.gov (United States)

    Sivakumar, Venkatasubramanian; Anna, J Lakshmi; Vijayeeswarri, J; Swaminathan, G

    2009-08-01

    There is a growing demand for eco-friendly/non-toxic colorants, specifically for health sensitive applications such as coloration of food and dyeing of child textile/leather garments. Recently, dyes derived from natural sources for these applications have emerged as an important alternative to potentially harmful synthetic dyes and pose need for suitable effective extraction methodologies. The present paper focus on the influence of process parameters for ultrasound assisted leaching of coloring matter from plant materials. In the present work, extraction of natural dye from beetroot using ultrasound has been studied and compared with static/magnetic stirring as a control process at 45 degrees C. The influence of process parameters on the extraction efficiency such as ultrasonic output power, time, pulse mode, effect of solvent system and amount of beetroot has been studied. The use of ultrasound is found to have significant improvement in the extraction efficiency of colorant obtained from beetroot. Based on the experiments it has been found that a mixture of 1:1 ethanol-water with 80W ultrasonic power for 3h contact time provided better yield and extraction efficiency. Pulse mode operation may be useful in reducing electrical energy consumption in the extraction process. The effect of the amount of beetroot used in relation to extraction efficiency has also been studied. Two-stage extraction has been studied and found to be beneficial for improving the yield for higher amounts of beetroot. Significant 8% enhancement in % yield of colorant has been achieved with ultrasound, 80W as compared to MS process both using 1:1 ethanol-water. The coloring ability of extracted beet dye has been tested on substrates such as leather and paper and found to be suitable for dyeing. Ultrasound is also found to be beneficial in natural dyeing of leather with improved rate of exhaustion. Both the dyed substrates have better color values for ultrasonic beet extract as inferred from

  19. Recent advancements in bioremediation of dye: Current status and challenges.

    Science.gov (United States)

    Vikrant, Kumar; Giri, Balendu Shekhar; Raza, Nadeem; Roy, Kangkan; Kim, Ki-Hyun; Rai, Birendra Nath; Singh, Ram Sharan

    2018-04-01

    The rampant industrialization and unchecked growth of modern textile production facilities coupled with the lack of proper treatment facilities have proliferated the discharge of effluents enriched with toxic, baleful, and carcinogenic pollutants including dyes, heavy metals, volatile organic compounds, odorants, and other hazardous materials. Therefore, the development of cost-effective and efficient control measures against such pollution is imperative to safeguard ecosystems and natural resources. In this regard, recent advances in biotechnology and microbiology have propelled bioremediation as a prospective alternative to traditional treatment methods. This review was organized to address bioremediation as a practical option for the treatment of dyes by evaluating its performance and typical attributes. It further highlights the current hurdles and future prospects for the abatement of dyes via biotechnology-based remediation techniques. Copyright © 2018 Elsevier Ltd. All rights reserved.

  20. Removal of Remazol brilliant violet textile dye by adsorption using rice hulls

    Energy Technology Data Exchange (ETDEWEB)

    Ribeiro, Geyse Adriana Correa; Silva, Domingos Sergio Araujo; Santos, Clayane Carvalho dos; Bezerra, Cicero Wellington Brito; Tanaka, Auro Atsushi; Santana, Sirlane Aparecida Abreu, E-mail: cwb.bezerra@ufma.br [Universidade Federal do Maranhao, (UFMA), Sao Luis (Brazil); Vieira, Adriana Pires [Universidade Estadual de Campinas (UNICAMP), Campinas, SP (Brazil)

    2017-01-15

    The release of industrial effluents into the environment causes widespread contamination of aquatic systems. Adsorption is seen as one of the most promising treatment processes, and lignocellulosic materials have gained prominence as adsorbents. This study investigates the potential of rice hulls, either in natura or treated with nitric acid, as adsorbents for removal of the dye. The adsorbents were characterized by infrared spectroscopy, solid state {sup 13}C-NMR, thermogravimetric analysis, and pH at point of zero charge. The dye adsorption experiments were carried out in batch mode, using different experimental conditions. The kinetic adsorption data could be fitted using the model of Elovich. The Freundlich model provided the best fit to the isothermal data. The thermodynamic parameters confirmed the spontaneity of the adsorption process. These adsorbents offer an alternative for dye removal, with advantages including biomass availability and low cost. (author)

  1. Decomposing the Decoupling of Water Consumption and Economic Growth in China’s Textile Industry

    Directory of Open Access Journals (Sweden)

    Yi Li

    2017-03-01

    Full Text Available Unprecedented economic achievement in China’s textile industry (TI has occurred along with rising water consumption. The goal of industrial sustainable development requires the decoupling of economic growth from resource consumption. This paper examines the relationship between water consumption and economic growth, and the internal influence mechanism of China’s TI and its three sub-sectors: the manufacture of textiles (MT sector, the Manufacture of Textile Wearing Apparel, Footwear, and Caps (MTWA sector, and the manufacture of chemical fibers (MCF sector. A decoupling analysis was performed and the Laspeyres decomposition method was applied to the period from 2001 to 2014. We showed that six of the fourteen years analyzed (2003, 2006, 2008, 2009, 2011, and 2013 exhibited a strong decoupling effect and three of the fourteen years (2005, 2007, and 2010 exhibited a weak decoupling effect. Overall, China’s TI experienced a good decoupling between economic growth and water consumption from 2002 to 2014. For the three sub-sectors, the MTWA sector experienced a more significant positive decoupling than the MT and MCF sectors. The decomposition results confirm that the industrial scale factor is the most important driving force of China’s TI water consumption increase, while the water efficiency factor is the most important inhibiting force. The industrial structure adjustment does not significantly affect water consumption. The industrial scale and water use efficiency factors are also the main determinants of change in water consumption for the three sub-sectors.

  2. Fluorescence quenching and photocatalytic degradation of textile dyeing waste water by silver nanoparticles

    Science.gov (United States)

    Kavitha, S. R.; Umadevi, M.; Janani, S. R.; Balakrishnan, T.; Ramanibai, R.

    2014-06-01

    Silver nanoparticles (Ag NPs) of different sizes have been prepared by chemical reduction method and characterized using UV-vis spectroscopy and transmission electron microscopy (HRTEM). Fluorescence spectral analysis showed that the quenching of fluorescence of textile dyeing waste water (TDW) has been found to decrease with decrease in the size of the Ag NPs. Experimental results show that the silver nanoparticles can quench the fluorescence emission of adsorbed TDW effectively. The fluorescence interaction between Ag NPs (acceptor) and TDW (donor) confirms the Förster Resonance Energy Transfer (FRET) mechanism. Long range dipole-dipole interaction between the excited donor and ground state acceptor molecules is the dominant mechanism responsible for the energy transfer. Furthermore, photocatalytic degradation of TDW was measured spectrophotometrically by using silver as nanocatalyst under UV light illumination. The kinetic study revealed that synthesized Ag NPs was found to be effective in degrading TDW.

  3. Sorption of Different Dye Wastes By Poly(vinyl alcohol) /Poly (Carboxymethyl Cellulose) Blend Grafted Through A Radiation Method

    International Nuclear Information System (INIS)

    El-Salmawi Kariman, M.; Abu Zaid Magda, M.; Ibraheim Sayeda, M.; El-Naggar Abdel Wahab, M.; Zahran Abdel Hamid, H.

    1999-01-01

    The sorption of different dye wastes normaly released from industrial textile factories by a graft copolymer of poly(vinyl alcohol)/poly(carboxymethyl cellulose) blend with polystyrene has been investigated. The dye sorption was evaluated at different conditions. The amount of sorbed dye was determined by using a spectroscopic method. The blend graft copolymer showed a relatively high sorption for basic dye than other dyestuffs such as acid, reactive and direct. Moreover, it was found that the dye sorption did not depend on the weight of the blend graft copolymer or the volume of the waste solution. The treatment of the dye waste by using the prepared blend graft copolymer may be considered a practical one from the point of view of environmental methods

  4. Investigating the mechanical behavior of composites made from textile industry waste

    NARCIS (Netherlands)

    Maqsood, Muhammad

    2017-01-01

    Recycling the waste for environmental protection has been an important challenge for the mankind. The fibrous waste in textile industry accounts for approximately 15% of the amount of fibers used, leading to a lower yield %. The current study focused to use this waste as reinforcement to produce a

  5. Novas tendências no tratamento de efluentes têxteis New tendencies on textile effluent treatment

    Directory of Open Access Journals (Sweden)

    Airton Kunz

    2002-02-01

    Full Text Available Textile effluents, when not correctly treated, cause a high impact to the environment. The main recalcitrant compounds present in textile effluent are represented by the synthetic dyes, used during the fibber dying process. Among others, the azo dyes are considered the most harmful due to its mutagenic and carcinogenic character. In the present work we reported a revision study on the new tendencies for remediation of textile effluents, mainly to degrade the recalcitrant compounds. For this purpose, chemical, physical, photochemical, biological and combined processes were investigated.

  6. Modification of azo dyes by lactic acid bacteria.

    Science.gov (United States)

    Pérez-Díaz, I M; McFeeters, R F

    2009-08-01

    The ability of Lactobacillus casei and Lactobacillus paracasei to modify the azo dye, tartrazine, was recently documented as the result of the investigation on red coloured spoilage in acidified cucumbers. Fourteen other lactic acid bacteria (LAB) were screened for their capability to modify the food colouring tartrazine and other azo dyes of relevance for the textile industry. Most LAB modified tartrazine under anaerobic conditions, but not under aerobic conditions in modified chemically defined media. Microbial growth was not affected by the presence of the azo dyes in the culture medium. The product of the tartrazine modification by LAB was identified as a molecule 111 daltons larger than its precursor by liquid chromatography-mass spectrometry. This product had a purple colour under aerobic conditions and was colourless under anaerobic conditions. It absorbed light at 361 and 553 nm. LAB are capable of anabolizing azo dyes only under anaerobic conditions. IMPACT AND SIGNIFICANCE OF THE STUDY: Although micro-organisms capable of reducing the azo bond on multiple dyes have been known for decades, this is the first report of anabolism of azo dyes by food related micro-organisms, such as LAB.

  7. Characterization and biological treatment of colored textile wastewaters from the typical Tunisian hat Chechia dyeing using newly isolated Aspergillus niger

    Directory of Open Access Journals (Sweden)

    Hajer Barouni

    2016-09-01

    Full Text Available This study aimed to characterize and investigate, for the first time, the treatment of real colored wastewaters from the artisanal dyeing of the typical Tunisian hat Chechia, using a newly isolated fungal strain. This textile effluent was a mixture called Mix of colored wastewaters from the three main types of Chechia. The major pollutant of the Mix was the toxic Azo dye Amaranth Acid or Acid Red 27. The fungal strain that made the cleanup was discovered in a Chechia dyeing wastewater’s container and identified by ITS rDNA gene sequencing. This isolated Aspergillus niger showed interesting performances on the demonstration of Chechia wastewater’s biodegradation in batch cultures. In order to understand the effect of agitation, Mix dilution and inoculum size on decolourisation and pollution removal, a full factorial experimental design 23 was set up. At the optimal conditions which were 20% inoculum size, 25% Chechia Mix dilution and an agitation of 100 rpm, Aspergillus niger was able to remove color as high as 70.18±2.84% at an initial dye concentration of 1346.6±0.01 mg/L, and to reduce COD to 74.17±14.52% at an initial COD of 4157±422 mg/L. FT-IR spectra analysis confirmed the decolourisation by biodegradation and transformation of the dyes. The treatment by the isolated Aspergillus niger could be successfully applied as a sustainable method to solve one of handicraft dyeing plants environmental management issues.

  8. Technical Training Requirements of Middle Management in the Greek Textile and Clothing Industries.

    Science.gov (United States)

    Fotinopoulou, K.; Manolopoulos, N.

    A case study of 16 companies in the Greek textile and clothing industry elicited the training needs of the industry's middle managers. The study concentrated on large and medium-sized work units, using a lengthy questionnaire. The study found that middle managers increasingly need to solve problems and ensure the reliability of new equipment and…

  9. Textile Design: A Suggested Program Guide. Fashion Industry Series No. 3.

    Science.gov (United States)

    Fashion Inst. of Tech., New York, NY.

    The textile design guide is the third of a series of five interrelated program resource guides encompassing the various dimensions of the fashion industry. The job-preparatory guide is conceived to provide youth and adults with intensive preparation for initial entry employment and also with career advancement opportunities within specific…

  10. Wood (Bagassa guianensis Aubl) and green coconut mesocarp (cocos nucifera) residues as textile dye removers (Remazol Red and Remazol Brilliant Violet).

    Science.gov (United States)

    Monteiro, Mônica S; de Farias, Robson F; Chaves, José Alberto Pestana; Santana, Sirlane A; Silva, Hildo A S; Bezerra, Cícero W B

    2017-12-15

    In this work the efficiency of two lignocellulosic waste materials, wood residues and coconut mesocarp, were investigated as adsorbents towards two representative textile dyes (Remazol Red, RR and Remazol Brilliant Violet, RBV). The moisture, carbohydrate, protein, lipid, ash and fiber contents of both natural matrices were characterized. The materials were also characterized by infrared spectroscopy, X-ray diffractometry, scanning electron microscopy, specific surface area analysis and thermogravimetry. The adsorption of dyes was monitored by using UV-Vis spectrophotometry. It was verified that both, coconut mesocarp (CM) and wood residues can act as effective adsorbents towards the investigated dyes. It is verified that the maximum adsorption capacity Γ M (mg g -1 ) for RBV and RR are 7.28 and 3.97 towards CM and 0.64 and 0.71 towrads SD. Furthermore, it was verified that the adsorption is strongly pH dependent and, as a general behavior, an increase in the pH value is associated with a decrease of the total amount of adsorbed dye. The adsorption of violet dye onto coconut mesocarp is well described by the Langmuir model, while all the remazol red fitted better with the Freundlich equation. Copyright © 2017 Elsevier Ltd. All rights reserved.

  11. Removal of Remazol brilliant violet textile dye by adsorption using rice hulls

    Directory of Open Access Journals (Sweden)

    Geyse Adriana Corrêa Ribeiro

    Full Text Available Abstract The release of industrial effluents into the environment causes widespread contamination of aquatic systems. Adsorption is seen as one of the most promising treatment processes, and lignocellulosic materials have gained prominence as adsorbents. This study investigates the potential of rice hulls, either in natura or treated with nitric acid, as adsorbents for removal of the dye. The adsorbents were characterized by infrared spectroscopy, solid state 13C-NMR, thermogravimetric analysis, and pH at point of zero charge. The dye adsorption experiments were carried out in batch mode, using different experimental conditions. The kinetic adsorption data could be fitted using the model of Elovich. The Freundlich model provided the best fit to the isothermal data. The thermodynamic parameters confirmed the spontaneity of the adsorption process. These adsorbents offer an alternative for dye removal, with advantages including biomass availability and low cost.

  12. Enhanced dewaterability of textile dyeing sludge using micro-electrolysis pretreatment.

    Science.gov (United States)

    Ning, Xun-An; Wen, Weibin; Zhang, Yaping; Li, Ruijing; Sun, Jian; Wang, Yujie; Yang, Zuoyi; Liu, Jingyong

    2015-09-15

    The effects of micro-electrolysis treatment on textile dyeing sludge dewatering and its mechanisms were investigated in this study. Capillary suction time (CST) and settling velocity (SV) were used to evaluate sludge dewaterability. Extracellular polymeric substances (EPS) concentration and sludge disintegration degree (DDSCOD) were determined to explain the observed changes in sludge dewaterability. The results demonstrated that the micro-electrolysis could significantly improve sludge dewaterability by disrupting the sludge floc structure. The optimal conditions of sludge dewatering were the reaction time of 20 min, initial pH of 2.5, Fe/C mass ratio of 1/1, and the iron powder dosage of 2.50 g/L, which achieved good CST (from 34.1 to 27.8 s) and SV (from 75 to 60%) reduction efficiency. In addition, the scanning electron microscope (SEM) images revealed that the treated sludge floc clusters are broken up and that the dispersion degree is better than that of a raw sludge sample. The optimal EPS concentration and DDSCOD to obtain maximum sludge dewaterability was 43-46 mg/L and 4.2-4.9%, respectively. The destruction of EPS was one of the primary reasons for the improvement of sludge dewaterability during micro-electrolysis treatment. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. Innovation, entrepreneurship and textiles

    Science.gov (United States)

    Blanton Godfrey, A.; Pourmojib, S.

    2017-10-01

    Innovation and entrepreneurship have become increasingly important parts of economic development in almost every country, region, and community. In this research we investigate the reasons people become entrepreneurs in the textile and apparel industries and compare entrepreneurship in these industries with other industries looking also at the success factors for start up companies. During our research we found many disrupters, people entering the textile and apparel industries from outside often having no prior experience in textiles or apparel. We also investigate the impact of government intervention on entrepreneurship. In recognition of the large economic impact entrepreneurial companies have on economic development and job growth, almost all federal governments, regional governments, and community governments have created support for innovation and entrepreneurship.

  14. Dynamics of the Textiles & Apparel Industries in Southeast Asia : A Preliminary Analysis

    OpenAIRE

    Esho, Hideki

    2015-01-01

    The apparel industry is a representative case of a buyer-driven global value chain, as suggested by Gary Gereffi. We examine this hypothesis by focusing on the textile and apparel industries in Southeast Asian countries, especially the Philippines, Malaysia, and Thailand. We found that there are two different kinds of value chains in these industries. In one, the lead firms are engaged in chemical fiber production, and, in the other, the lead firms are engaged in fast fashion retailing. The f...

  15. Cogeneration handbook for the textile industry. [Contains glossary

    Energy Technology Data Exchange (ETDEWEB)

    Garrett-Price, B.A.; Fassbender, L.L.; Moore, N.L.; Fassbender, A.G.; Eakin, D.E.; Gorges, H.A.

    1984-03-01

    The decision of whether to cogenerate involves several considerations, including technical, economic, environmental, legal, and regulatory issues. Each of these issues is addressed separately in this handbook. In addition, a chapter is included on preparing a three-phase work statement, which is needed to guide the design of a cogeneration system. In addition, an annotated bibliography and a glossary of terminology are provided. Appendix A provides an energy-use profile of the textile industry. Appendices B through O provide specific information that will be called out in subsequent chapters.

  16. Characterization and thermal behaviour of textile waste from the industrial city of Aleppo in Syria.

    Science.gov (United States)

    Majanny, Abdulkader; Nassour, Abdallah; Gose, Sven; Scholz, Reinhard; Nelles, Michael

    2011-03-01

    This paper describes the present waste management practices in the industrial city Alsheikh Najjar of Aleppo, mainly with regard to textile waste materials, and provides some insights into future prospects. As a first exploration for energy recovery from textile waste materials, the thermal behaviour of seven different types of textile waste were studied by thermogravimetry. There were assorted differential thermogravimetry peaks found over a particular range of temperatures. Pyrolysis experiments were carried out to identify the pyrolysis products such as gas, liquid, and solid residues known as char. In a subsequent analysis, the combustion behaviour of textile waste was determined and analysed. Typical parameters - reaction front velocity, ignition rate - were considered for the evaluation of the combustion behaviour and the results were compared with values observed for waste wood.

  17. The use of the Kelor Seeds (Moringa oleifera) as alternative coagulant in waste delivery process of textile industrial waste

    Science.gov (United States)

    Rambe, AM; Pandia, S.; Ginting, MHS; Tambun, R.; Haryanto, B.

    2018-02-01

    This research is to know the influence of moringa seed as coagulant, pH of liquid waste textile industry (jeans wash), size of moringa seed particles to decrease of turbidity percentage. Measurements were made to Total Suspended Solid, Color Rate and Chemical Oxygen Demand for wastewater textile industry by coagulation - flocculation method. Variables of this study were conducted on dosage of moringa, with particle size 212 mesh. The results showed that moringa seeds as coagulant dose optimum is 1250 mg/L for the textile industry wastewater at pH 7.8. Moringa seed powder is about 212 mesh with a dose of 1250 mg/L can lower the turbidity of 77.77%, Total Suspended Solid amounted to 83.69% and Chemical Oxygen Demand amounted to 75.86%.

  18. Aerobic decolourization of the indigo dye-containing textile wastewater using continuous combined bioreactors

    International Nuclear Information System (INIS)

    Khelifi, Eltaief; Gannoun, Hana; Touhami, Youssef; Bouallagui, Hassib; Hamdi, Moktar

    2008-01-01

    An aerobic bioprocess was applied to Indigo dye-containing textile wastewater treatment aiming at the colour elimination and biodegradation. A combined aerobic system using continuous stirred tank reactor (CSTR) and fixed film bioreactor (FFB) was continuously operated at constant temperature and fed with the textile wastewater (pH: 7.5 and total chemical oxygen demand (COD): 1185 mg l -1 ). The CSTR is a 1 l continuous flow stirred tank reactor with a 700 ml working volume, and operated with a variable wastewater loading rate (WLR) from 0.92 to 3.7 g l -1 d -1 . The FFB is a 1.5 l continuous flow with three compartments packed with a rippled cylindrical polyethylene support, operated with a variable WLR between 0.09 and 0.73 g l -1 d -1 . The combined two bioreactors were inoculated by an acclimated microbial consortium and continuously operated with four total WLR. This system presented high COD elimination and colour removal efficiencies of 97.5% and 97.3%, respectively, obtained with a total hydraulic retention time (HRT) of 4 days and total WLR of 0.29 g l -1 d -1 . The effects of WLR on absorption phenomena on the yield of conversion of substrate on biomass (R TSS/COD ) and on the yield of conversion of substrate on active biomass (R VVS/COD ) are discussed. The increase of WLR and the decrease of HRT diminished the performances of this system in terms of decolourization and COD removal explained by the sloughing of biofilm, and the washout phenomena

  19. Survey of ectomycorrhizal, litter-degrading, and wood-degrading Basidiomycetes for dye decolorization and ligninolytic enzyme activity.

    Science.gov (United States)

    Casieri, Leonardo; Anastasi, Antonella; Prigione, Valeria; Varese, Giovanna Cristina

    2010-11-01

    Basidiomycetes are essential in forest ecology, being deeply involved in wood and litter decomposition, humification, and mineralization of soil organic matter. The fungal oxidoreductases involved in these processes are today the focus of much attention with a view to their applications. The ecological role and potential biotechnological applications of 300 isolates of Basidiomycetes were assessed, taking into account the degradation of model dyes in different culture conditions and the production of oxidoreductase enzymes. The tested isolates belong to different ecophysiological groups (wood-degrading, litter-degrading, ectomycorrhizal, and coprophilous fungi) and represent a broad systematic and functional biodiversity among Basidiomycetes occurring in deciduous and evergreen forests of northwest Italy (Piedmont Region). The high number of species tested and the use of different culture conditions allowed the investigation of the degradation activity of several novel species, neglected to date. Oxidative enzyme activities varied widely among all ecophysiological groups and laccases were the most commonly detected enzymes. A large number of isolates (86%), belonging to all ecophysiological groups, were found to be active against at least one model dye; the wood-degrading fungi represented the most efficient group. Noteworthily, also some isolates of litter-degrading and ectomycorrhizal fungi achieved good decolorization yield. The 25 best isolates were then tested against nine industrial dyes commonly employed in textile industries. Three isolates of Bjerkandera adusta efficiently decolorized the dyes on all media and can be considered important candidates for application in textile wastewater treatment.

  20. Study on quality of effluent discharge by the Tiruppur textile dyeing units and its impact on river Noyyal, Tamil Nadu (India).

    Science.gov (United States)

    Rajkumar, A Samuel; Nagan, S

    2010-10-01

    In Tiruppur, 729 textile dyeing units are under operation and these units generate 96.1 MLD of wastewater. The untreated effluent was discharged into the Noyyal River till 1997. After the issuance of directions by Tamil Nadu Pollution Control Board (TNPCB) in 1997, these units have installed 8 common effluent treatment plants (CETP) consisting of physical, chemical and biological treatment units. Some of the units have installed individual ETP (IETP). The treated effluent was finally discharged into the river. The dyeing units use sodium chloride in the dyeing process for efficient fixing of dye in the fabric efficiently. This contributes high total dissolved solids (TDS) and chlorides in the effluent. CETPs and IETPs failed to meet discharge standards of TDS and chlorides and thereby significantly affected the river water quality. TDS level in the river water was in the range of 900 - 6600 mg/L, and chloride was in the range of 230 - 2700 mg/L. Orathupalayam dam is located across Noyyal river at 32 km down stream of Tiruppur. The pollutants carried by the river were accumulated in the dam. TDS in the dam water was in the range of 4250 - 7900 mg/L and chloride was in the range of 1600 - 2700 mg/L. The dam sediments contain heavy metals of chromium, copper, zinc and lead. In 2006, the High Court has directed the dyeing units to install zero liquid discharge (ZLD) plant and to stop discharging of effluent into the river. Accordingly, the industries have installed and commissioned the ZLD plant consisting of RO plant and reject management system in 2010. The effluent after secondary treatment from the CETP is further treated in RO plant. The RO permeate is reused by the member units. The RO reject is concentrated in multiple effect evaporator (MEE)/ mechanical vacuum re-compressor (MVR). The concentrate is crystallized and centrifuged to recover salt. The salt recovered is reused. The liquid separated from the centrifuge is sent to solar evaporation pan. The salt

  1. Application of the natural cellulosic supports modified chemically for the treatment of the industrial effluents

    International Nuclear Information System (INIS)

    Kassale, A.; Elbariji, S.; Lacherai, A.; Elamine, M.; Kabli, H.; Albourine, A.

    2009-01-01

    The process of purification and discoloration of industrial waters (and particularly effluents of the textile industry) can meet major difficulties: certain dyes agents get through the devices of purge without being to stop. the cost of equipment and products of purification is prohibitive. Finally, in many cases, the discoloration can be only partial because waters to be treated containing mixtures of dyes of different nature, the material of purification can be effective only screw/screw of some of them. (Author)

  2. Decolorization and degradation of reactive dye during the dyed cotton fabric rinsing process.

    Science.gov (United States)

    Luo, Deng-Hong; Zheng, Qing-Kang; Chen, Sheng; Liu, Qing-Shu; Wang, Xiu-Xing; Guan, Yu; Pu, Zong-Yao

    2010-01-01

    Dyeing process of textile consumes large quantities of water, which results in huge amounts of colored wastewater. Most of the dye wastewater treating methods focused on the treatment of wastewater after the rinsing process of dyed textile. In this paper, tetraacetylethylenediamine/hydrogen peroxide (TAED/H₂O₂) active oxidation (AO) system was developed to rinse dyed textile and decolorize the rinsing wastewater simultaneously. The results indicated that the decolorization ratio of the rinse effluent obtained by AO method were in the range of 51.72%-84.15% according to different dyes and the COD value decreased more than 30% compared with that of traditional rinsing process. The decolorization kinetics investigation showed that the decolorization of dyes during AO rinsing process followed the law of pseudo-first order kinetics. The result of UV-Vis and UPLC-MS analysis demonstrated that the dye was degraded into colorless organic molecular fragments and partly mineralized during the AO rinsing process.

  3. Technology and Manpower in the Textile Industry of the 1970's. Bulletin No. 1578.

    Science.gov (United States)

    Bureau of Labor Statistics (DOL), Washington, DC.

    This bulletin describes changes in technology in the textile industry, one of the major industries of the economy, projects their impact on productivity, employment, and occupational requirements, and discusses methods of adjustment. It is designed to partially meet the requirement of the Manpower Development and Training Act that the Secretary of…

  4. Electrochemical oxidation of textile industry wastewater by graphite electrodes.

    Science.gov (United States)

    Bhatnagar, Rajendra; Joshi, Himanshu; Mall, Indra D; Srivastava, Vimal C

    2014-01-01

    In the present article, studies have been performed on the electrochemical (EC) oxidation of actual textile industry wastewater by graphite electrodes. Multi-response optimization of four independent parameters namely initial pH (pHo): 4-10, current density (j): 27.78-138.89 A/m(2), NaCl concentration (w): 0-2 g/L and electrolysis time (t): 10-130 min have been performed using Box-Behnken (BB) experimental design. It was aimed to simultaneously maximize the chemical oxygen demand (COD) and color removal efficiencies and minimize specific energy consumption using desirability function approach. Pareto analysis of variance (ANOVA) showed a high coefficient of determination value for COD (R(2) = 0.8418), color (R(2) = 0.7010) and specific energy (R(2) = 0.9125) between the experimental values and the predicted values by a second-order regression model. Maximum COD and color removal and minimum specific energy consumed was 90.78%, 96.27% and 23.58 kWh/kg COD removed, respectively, were observed at optimum conditions. The wastewater, sludge and scum obtained after treatment at optimum condition have been characterized by various techniques. UV-visible study showed that all azo bonds of the dyes present in the wastewater were totally broken and most of the aromatic rings were mineralized during EC oxidation with graphite electrode. Carbon balance showed that out of the total carbon eroded from the graphite electrodes, 27-29.2% goes to the scum, 71.1-73.3% goes into the sludge and rest goes to the treated wastewater. Thermogravimetric analysis showed that the generated sludge and scum can be dried and used as a fuel in the boilers/incinerators.

  5. Treatment of textile effluent containing indigo blue dye by a UASB reactor coupled with pottery clay adsorption - doi: 10.4025/actascitechnol.v35i1.13091

    Directory of Open Access Journals (Sweden)

    Vinicius Conceição

    2013-01-01

    Full Text Available This study aimed to evaluate the treatment of a synthetic textile wastewater containing the blue indigo dye in a UASB (upflow anaerobic reactor, on a bench scale, followed by pottery clay adsorption. The system monitoring was verified by the following physical and chemical parameters: pH, alkalinity, volatile acids, COD and removal of color. The adsorption tests using pottery clay (construction debris as an alternative adsorbent material were performed on a jar test equipment. The results showed satisfactory effectiveness in removing color and organic matter (COD by the UASB, at the order of 69 and 81.2%, respectively. The color removal using ceramic clay as an alternative adsorbent material was 97% for the concentration of 200 g L-1 of adsorbent, evidencing that the use of pottery clay as adsorbent material had significant and promising results, and may be used as a post-treatment unit for removal of dyes present in textile effluents, and since construction debris currently represents a major environmental problem, its use in wastewater treatment may become an alternative to a proper destination of this waste.  

  6. Ergonomics issues among sewing machine operators in the textile manufacturing industry in Botswana.

    Science.gov (United States)

    Sealetsa, O J; Thatcher, A

    2011-01-01

    Universally musculoskeletal disorders are among the leading causes of low productivity in today's work environment. The situation is reportedly even worse in developing countries with appalling working conditions in many industries. In addition, there is often an acute lack of awareness of ergonomics issues, education and training programmes, and certification within developing countries. Numerous studies internationally have highlighted musculoskeletal risk factors associated with the textile industry and garment-making jobs because of highly repetitive work in awkward work postures. The objective of this study was to identify and describe possible ergonomics deficiencies in the workstation of sewing machine operators in a textile industry in Botswana as well as their perception of workload and bodily discomfort. This study focused on one textile manufacturing factory in Botswana where 157 female sewing machine operators were recruited as participants. A modified Corlett and Bishop body map questionnaire and the NASA TLX were administered and relevant anthropometric and workplace layout measurements were collected. The results of the study revealed a high prevalence of musculoskeletal disorders. Back, neck and shoulder discomfort are highly prevalent among these sewing machine operators. This study proposes intervention strategies including the re-design of the workstations and seating and the provision of training in basic ergonomics principles for improving the work-life of these operators and provides a base for further research on the prevalence of musculoskeletal disorders among sewing machine operators in developing countries.

  7. An analysis of buyer-supplier collaboration in the South African textile industry

    Directory of Open Access Journals (Sweden)

    H. Parker

    2007-12-01

    Full Text Available Purpose: The purpose of this article is to explore perceptions regarding buyer and supplier collaboration around product development. The aim is to gain an understanding of which factors influence buyer-supplier collaboration outcomes in the South African textile industry. Methodology: This study comprised two data collection stages. The first stage comprised the design and administration of a questionnaire survey. The second stage utilised a qualitative interview methodology and entailed interviewing a subset of the questionnaire respondents in order to probe respondents’ own experiences in collaborative product developments and their perception of the factors that determine collaboration outcome. Findings: This study has shed light on the experiences of South African firms in the textile industry engaging in buyer-supplier collaboration around product development. While this study is exploratory, it has provided evidence that there are certain factors which are perceived to have a significant influence on collaboration. Implications: Under the past protective shield of tariffs, South African clothing and textile manufacturers could afford to allow an adversarial mode of operation to perpetuate inefficiencies. However, the increasing external pressures, including the very real threat of overseas competition, heighten the need for collaboration between buyers and suppliers. This relates, in particular, to collaboration aimed at new product development, which can be seen as a new imperative for the survival and growth of this industry. Currently, there are numerous barriers to effective collaboration. The overwhelming power of retailers in the value chain is one such barrier, as it creates an environment which is pressurised, strained and not conducive to buyer-supplier collaboration. Contribution and Value: Studies on collaborative new product development have primarily been done in developed countries, with a focus on technology intensive

  8. The US textile industry: An energy perspective

    Energy Technology Data Exchange (ETDEWEB)

    Badin, J. S.; Lowitt, H. E.

    1988-01-01

    This report investigates the state of the US textile industry in terms of energy consumption and conservation. Specific objectives were: To update and verify energy and materials consumption data at the various process levels in 1984; to determine the potential energy savings attainable with current (1984), state-of-the-art, and future production practices and technologies (2010); and to identify new areas of research and development opportunity that will enable these potential future savings to be achieved. Results of this study concluded that in the year 2010, there is a potential to save between 34% and 53% of the energy used in current production practices, dependent on the projected technology mix. RandD needs and opportunities were identified for the industry in three categories: process modification, basic research, and improved housekeeping practices that reduce energy consumption. Potential RandD candidates for DOE involvement with the private sector were assessed and selected from the identified list.

  9. Digital Inkjet Textile Printing

    OpenAIRE

    Wang, Meichun

    2017-01-01

    Digital inkjet textile printing is an emerging technology developed with the rise of the digital world. It offers a possibility to print high-resolution images with unlimited color selection on fabrics. Digital inkjet printing brings a revolutionary chance for the textile printing industry. The history of textile printing shows the law how new technology replaces the traditional way of printing. This indicates the future of digital inkjet textile printing is relatively positive. Differen...

  10. The Factors and Transversal Reorganizations Principles of Romanian Textile Industry Enterprises using Activity-Based Costing Method

    Directory of Open Access Journals (Sweden)

    Sorinel Capusneanu

    2007-04-01

    Full Text Available This article describes the factors and the principles of transversal reorganization of the enterprises from the Romanian textile industry by adapting the Activity-Based Costing method (ABC to its specific. There are presented and analyzed the real possibilities of reorganization of the enterprises in Romania by elaboration of methodological phases that will be covered until the implementation of their transversal organization. Are we ready to adapt the Activity-Based Costing method to the specific of the Romanian textile industry and not only? Here is the question whose response we will find in this article.

  11. An integrated (electro- and bio-oxidation) approach for remediation of industrial wastewater containing azo-dyes: Understanding the degradation mechanism and toxicity assessment

    International Nuclear Information System (INIS)

    Aravind, Priyadharshini; Selvaraj, Hosimin; Ferro, Sergio; Sundaram, Maruthamuthu

    2016-01-01

    Highlights: • Firstly, the mediated electro-oxidation allows rapid discoloration of the effluent. • Cost effective sunlight-mediated removal of bio-toxic active chlorine species. • Electrochemical pretreatment enhances the biodegradability of textile wastewater. • About 90% COD removal was achieved by a subsequent biodegradation. • By-products from degradation of dyes have shown to be ecofriendly and non-toxic. - Abstract: A hybrid approach for the remediation of recalcitrant dye wastewater is proposed. The chlorine-mediated electrochemical oxidation of real textile effluents and synthetic samples (using Ti/IrO_2-RuO_2-TiO_2 anodes), lead to discoloration by 92% and 89%, respectively, in 100 min, without significant mineralization. The remediation was obtained through biodegradation, after removing the residual bio-toxic active chlorine species via sunlight exposition. Results show that the electrochemical discoloration enhances the effluent biodegradability with about 90% COD removal employing acclimatized naphthalene-degrading bacterial consortia, within 144 h. Based on results obtained through FT-IR and GC–MS, it is likely that azo group stripping and oxidative cleavage of dyes occur due to the nucleophilic attack of active chlorine species during electro-oxidation. This leads to generation of aromatic intermediates which are further desulfonated, deaminated or oxidized only at their functional groups. These aromatic intermediates were mineralized into simpler organic acids and aldehydes by bacterial consortia. Phyto-toxicity trials on Vigna radiata confirmed the toxic nature of the untreated dye solutions. An increase in root and shoot development was observed with the electrochemically treated solutions, the same was higher in case of bio-treated solutions. Overall, obtained results confirm the capability of the proposed hybrid oxidation scheme for the remediation of textile wastewater.

  12. Studies on Dyeing Performance of Novel Acid Azo Dyes and Mordent Acid Azo Dyes Based on 2,4-Dihydroxybenzophenone

    Directory of Open Access Journals (Sweden)

    Bharat C. Dixit

    2009-01-01

    Full Text Available Novel acid azo and mordent acid azo dyes have been prepared by the coupling of diazo solution of different aminonaphthol sulphonic acids and aromatic amino acids with 2,4-dihydroxybenzophenone. The resultant dyes were characterized by elemental analysis as well as IR and 1H NMR spectral studies. The UV-visible spectral data have also been discussed in terms of structure property relationship. The dyeing assessments of all the dyes were evaluated on wool and silk textile fibers. The dyeing of chrome pretreated wool and silk have also been monitored. The result shows that better hue was obtained on mordented fiber. Results of bactericidal studies of chrome pretreated fibers revealed that the toxicity of mordented dyes against bacteria is fairly good. Dyeing on wool and silk fibers resulted in yellowish pink to reddish brown colourations having excellent light fastness and washing fastness.

  13. Analysis of the situation in the textile industry in Мacedonia through four quality pillars

    OpenAIRE

    Mitreva, Elizabeta; Risteski, Sanja; Srebrenkoska, Vineta; Lazarevski, Ilija

    2016-01-01

    In this paper is elaborated and confirmed the need of projection and implementation of total quality management (TQM) system within Macedonian textile factories. Quality should be required not only in the production process, but in all parts of the business processes, even in the way the employees behave. An analysis is made on the situation in the textile industry in Macedonia and its progress through the four quality pillars: internal standardization, statistical process control appliance, ...

  14. Colored and agroecological cotton may be a sustainable solution for future textile industry

    Directory of Open Access Journals (Sweden)

    Solimar Garcia

    2015-03-01

    Full Text Available The agribusiness topics ofcolored cottonand fashion do not have any practical scientific literature published on the subject,only when the theme is treated primarily as the aim of sustainability. Colored and agroecological cotton, despite the limitation in color,could become an industrial production with less environmental, impact using less water. The aim of this study was to present the colored fiber and organic cotton, produced by small farmers in the Northeast region of Brazil, as an alternative product to promote sustainability in cotton agribusiness and the textile industry, and to identify the lack of scientific studies related to the theme. Surveys were carried out on available national literature and international database publications on the topic, and the results of research on toxic products used for the production of white cotton and textile industry were presented. Governmental incentives through funding agencies to farmers engaged in this production are suggested, in order to improve production and distribution. It is also necessary to provide the infrastructure necessary for this product to reach the global market, including in cooperation with poorer countries in order to promote changes in environmental impact worldwide in the fashion industry

  15. Machine-Washable PEDOT:PSS Dyed Silk Yarns for Electronic Textiles.

    Science.gov (United States)

    Ryan, Jason D; Mengistie, Desalegn Alemu; Gabrielsson, Roger; Lund, Anja; Müller, Christian

    2017-03-15

    Durable, electrically conducting yarns are a critical component of electronic textiles (e-textiles). Here, such yarns with exceptional wear and wash resistance are realized through dyeing silk from the silkworm Bombyx mori with the conjugated polymer:polyelectrolyte complex PEDOT:PSS. A high Young's modulus of approximately 2 GPa combined with a robust and scalable dyeing process results in up to 40 m long yarns that maintain their bulk electrical conductivity of approximately 14 S cm -1 when experiencing repeated bending stress as well as mechanical wear during sewing. Moreover, a high degree of ambient stability is paired with the ability to withstand both machine washing and dry cleaning. For the potential use for e-textile applications to be illustrated, an in-plane thermoelectric module that comprises 26 p-type legs is demonstrated by embroidery of dyed silk yarns onto a piece of felted wool fabric.

  16. Chlorine disinfection of dye wastewater: Implications for a commercial azo dye mixture

    Energy Technology Data Exchange (ETDEWEB)

    Vacchi, Francine Inforcato; Albuquerque, Anjaina Fernandes; Vendemiatti, Josiane Aparecida; Morales, Daniel Alexandre [Faculdade de Tecnologia, Universidade Estadual de Campinas, Limeira, SP, 13484-332 (Brazil); Ormond, Alexandra B.; Freeman, Harold S. [Department of Textile Engineering, Chemistry, and Science, North Carolina State University, Raleigh, NC 27695-8301 (United States); Zocolo, Guilherme Juliao; Zanoni, Maria Valnice Boldrin [Departamento de Quimica Analitica, Universidade Estadual Paulista Julio de Mesquita Filho, Instituto de Quimica de Araraquara, Araraquara, SP 14801-970 (Brazil); Umbuzeiro, Gisela, E-mail: giselau@ft.unicamp.br [Faculdade de Tecnologia, Universidade Estadual de Campinas, Limeira, SP, 13484-332 (Brazil)

    2013-01-01

    Azo dyes, the most widely used family of synthetic dyes, are often employed as colorants in areas such as textiles, plastics, foods/drugs/cosmetics, and electronics. Following their use in industrial applications, azo dyes have been found in effluents and various receiving waters. Chemical treatment of effluents containing azo dyes includes disinfection using chlorine, which can generate compounds of varying eco/genotoxicity. Among the widely known commercial azo dyes for synthetic fibers is C.I. Disperse Red 1. While this dye is known to exist as a complex mixture, reports of eco/genotoxicity involve the purified form. Bearing in mind the potential for adverse synergistic effects arising from exposures to chemical mixtures, the aim of the present study was to characterize the components of commercial Disperse Red 1 and its chlorine-mediated decoloration products and to evaluate their ecotoxicity and mutagenicity. In conducting the present study, Disperse Red 1 was treated with chlorine gas, and the solution obtained was analyzed with the aid of LC-ESI-MS/MS to identify the components present, and then evaluated for ecotoxicity and mutagenicity, using Daphnia similis and Salmonella/microsome assays, respectively. The results of this study indicated that chlorination of Disperse Red 1 produced four chlorinated aromatic compounds as the main products and that the degradation products were more ecotoxic than the parent dye. These results suggest that a disinfection process using chlorine should be avoided for effluents containing hydrophobic azo dyes such commercial Disperse Red 1. -- Highlights: Black-Right-Pointing-Pointer Aqueous solutions of Disperse Red 1 were treated with chlorine. Black-Right-Pointing-Pointer The chlorination products of Disperse Red 1 were identified using LC-ESI-MS/MS. Black-Right-Pointing-Pointer Daphnia and Salmonella/microsome were employed for eco/genotoxicity testing. Black-Right-Pointing-Pointer The chlorinated dye was more mutagenic

  17. Treatment of a simulated textile wastewater in a sequencing batch reactor (SBR) with addition of a low-cost adsorbent.

    Science.gov (United States)

    Santos, Sílvia C R; Boaventura, Rui A R

    2015-06-30

    Color removal from textile wastewaters, at a low-cost and consistent technology, is even today a challenge. Simultaneous biological treatment and adsorption is a known alternative to the treatment of wastewaters containing biodegradable and non-biodegradable contaminants. The present work aims at evaluating the treatability of a simulated textile wastewater by simultaneously combining biological treatment and adsorption in a SBR (sequencing batch reactor), but using a low-cost adsorbent, instead of a commercial one. The selected adsorbent was a metal hydroxide sludge (WS) from an electroplating industry. Direct Blue 85 dye (DB) was used in the preparation of the synthetic wastewater. Firstly, adsorption kinetics and equilibrium were studied, in respect to many factors (temperature, pH, WS dosage and presence of salts and dyeing auxiliary chemicals in the aqueous media). At 25 °C and pH 4, 7 and 10, maximum DB adsorption capacities in aqueous solution were 600, 339 and 98.7 mg/g, respectively. These values are quite considerable, compared to other reported in literature, but proved to be significantly reduced by the presence of dyeing auxiliary chemicals in the wastewater. The simulated textile wastewater treatment in SBR led to BOD5 removals of 53-79%, but color removal was rather limited (10-18%). The performance was significantly enhanced by the addition of WS, with BOD5 removals above 91% and average color removals of 60-69%. Copyright © 2015 Elsevier B.V. All rights reserved.

  18. Decoupling Water Consumption and Environmental Impact on Textile Industry by Using Water Footprint Method: A Case Study in China

    Directory of Open Access Journals (Sweden)

    Yi Li

    2017-02-01

    Full Text Available The rapid development of China’s textile industry has led to consumption and pollution of large volumes of water. Therefore, the textile industry has been the focus of water conservation and waste reduction in China’s 13th Five-Year Plan (2016–2020. The premise of sustainable development is to achieve decoupling of economic growth from water consumption and wastewater discharge. In this work, changes in the blue water footprint, grey water footprint, and the total water footprint of the textile industry from 2001 to 2014 were calculated. The relationship between water footprint and economic growth was then examined using the Tapio decoupling model. Furthermore, factors influencing water footprint were determined through logarithmic mean Divisia index (LMDI method. Results show that the water footprint of China’s textile industry has strongly decoupled for five years (2003, 2006, 2008, 2011, and 2013 and weakly decoupled for four years (2005, 2007, 2009, and 2010. A decoupling trend occurred during 2001–2014, but a steady stage of decoupling had not been achieved yet. Based on the decomposition analysis, the total water footprint mainly increased along with the production scale. On the contrary, technical level is the most important factor in inhibiting the water footprint. In addition, the effect of industrial structure adjustment is relatively weak.

  19. Comparative analysis of colour change measurement devices in textile industry

    Directory of Open Access Journals (Sweden)

    Paulina Gilewicz

    2014-08-01

    Full Text Available In the paper there is presented a trial of application of new measurement principle of colour change with the use of DigiEye device. Comparison of DigiEye with commonly use in the textile industry spectrophotometer Macbeth 2020 was an aim of determination of relationship between parameters of both measurement systems. Samples for the colour change assessment on both measurement systems were first aged in the Xenotest 150. Ageing process was done according to the method of blues scale. Results were obtained by the colour measurement devices before and after the ageing test each releasing the diaphragms during exposing the examined samples on the light. Result of colour change were obtained in the colour system CIE L*a*b*. The measurements were done for PES fabrics destined on the outer layers of clothing. [b]Keywords[/b]: textiles, spectrophotometer, colorimeter [b][/b

  20. THE COMPETITIVENESS OF TEXTILE INDUSTRY

    Directory of Open Access Journals (Sweden)

    PRUNEA ANA

    2014-05-01

    Full Text Available The role of this paper is to highlight the position of the European players in the textile market and the challenges to which they are subjected. In this paper are presented ways, taking the „diamond" model of M. Porter and are adapted to the situation of the textile market. These adaptations have outlined the main existing problems and the possible solutions that can ensure the long-term competitive advantage. Gaining a competitive advantage based on innovation, the development of production and outsourcing strategies using the "diamond" model of M. Porter, we can say that is one of the viable solutions for gaining competitive advantages necessary for proper European companies to face competition from countries outside Europe. As developing countries do not meet certain environmental standards or norms of European law, but in terms of product innovation and development of new materials, they do not have the necessity for technology. We conducted an analysis of the factors that play a key role in the production of textiles, representing how they are used in the favor of European companies such investments to be supplemented can be found in how these factors act on the total costs.

  1. Enhanced photocatalytic activity of ZnO/CuO nanocomposite for the degradation of textile dye on visible light illumination

    International Nuclear Information System (INIS)

    Saravanan, R.; Karthikeyan, S.; Gupta, V.K.; Sekaran, G.; Narayanan, V.; Stephen, A.

    2013-01-01

    The photocatalytic degradation of organic dyes such as methylene blue and methyl orange in the presence of various percentages of composite catalyst under visible light irradiation was carried out. The catalyst ZnO nanorods and ZnO/CuO nanocomposites of different weight ratios were prepared by new thermal decomposition method, which is simple and cost effective. The prepared catalysts were characterized by different techniques such as X-ray diffraction, transmission electron microscopy, field emission scanning electron microscopy, Fourier transform infrared spectroscopy and UV–visible absorption spectroscopy. Further, the most photocatalytically active composite material was used for degradation of real textile waste water under visible light illumination. The irradiated samples were analysed by total organic carbon and chemical oxygen demand. The efficiency of the catalyst and their photocatalytic mechanism has been discussed in detail. Highlights: ► Visible light active photocatalyst ► Degradation of methylene blue and methyl orange ► Preparation of composite materials is a simple, fast and cost effective method. ► Nano composite materials ► Degradation of textile waste water

  2. Treatment of wastewater dyeing agent by photocatalytic process in solar reactor

    Directory of Open Access Journals (Sweden)

    O. Zahraa

    2006-01-01

    Full Text Available The photocatalytic decolorization of industrial textile dyes has been studied. The treatment was carried out on a solar reactor consisting in a flat active plane, tilted so as to face the sun and to allow the trickling of the water to be treated. Alternatively the reactor could be irradiated by an artificial source. After checking the system using salicylic acid, a conventional model molecule, the photocatalytic decolorization of Orange II, Yellow Drimarene, and Black Drimarene dyes was investigated. Artificial and solar irradiation gave comparable results although the heating by the sun reduced the amount of adsorption. The kinetics agrees with the Langmuir-Hinshelwood model and a discrepancy between adsorption constants deduced from the kinetic and adsorption experiments was interpreted by considering various types of adsorption sites. Orange II and Drimarene dyes decolorization kinetics are opposite limiting cases of the above model, as being of order 0 and 1 with respect to the dye, respectively.

  3. Technological changes illustrated by the coal tar and tar dye industry; Die Wandlung der Technik am Beispiel der Steinkohlenteer- und Teerfarben-Chemie

    Energy Technology Data Exchange (ETDEWEB)

    Collin, G. [Deutsche Gesellschaft fuer Chemisches Apparatewesen, Chemische Technik und Biotechnologie e.V. (DECHEMA), Frankfurt am Main (Germany)

    2001-05-01

    Coal tar was detected in the 17th century in laboratory experiments based on empirical knowledge. In the 18th century industrial revolution, coal tar was an undesired by-product of iron production and coking plants. It was first used in the 19th century for impregnating railway sleepers. Later developments in atomic theory, new chemical symbols and organic element analysis provided the basis for discovering and chemical characterisation of coal tar constituents. Laboratory experiments with these tar constituents resulted in the first synthetic dyes, the postulation of tetravalent carbon and the resulting structural theory in organic chemistry for systematic synthesis of many tar dyes to substitute natural dyes in the textile industry. The technical application of these syntheses was part 2 of the industrial revolution and the foundation of the chemical industry in Germany, which developed rapidly in the 2nd half of the 19th century. Tar dye chemistry has made a significant contribution to Germany's economic growth and the change from an agricultural to an industrialized country. [German] Die Entdeckung des Steinkohlenteers im 17. Jahrhundert basiert auf durch Erfahrungswissen gepraegten Laboratoriumsexperimenten. Im Verlauf der 'Industriellen Revolution' des 18. Jahrhunderts ist der Steinkohlenteer zunaechst ein laestiges Abfallprodukt der Eisengewinnung im Kokshochofen und der Leuchtgasherstellung durch Kohlenverkokung. Erste technische Applikation finden Steinkohlenteeroele im 19. Jahrhundert durch den Eisenbahnbau zur Langzeit-Konservierung der dafuer benoetigten Holzschwellen. Die wissenschaftlichen Erfkenntnisse zur Atomtheorie, eine neue chemische Zeichensprache und die organische Elementaranalyse werden Voraussetzungen zur Entdeckung und chemischen Charakterisierung der Hauptinhaltsstoffe des Steinkohlenteers. Laboratoriumsexperimente mit den entdeckten Teerinhaltsstoffen fuehren zur Erfindung der ersten synthetischen Farbstoffe, die

  4. Influence of Czech textile-makers on development of textile industry in Serbia from the beginning to the second half of the 20th century

    Directory of Open Access Journals (Sweden)

    Menković Mirjana

    2017-01-01

    Full Text Available The main topic of this study is influence of Czech nationals, primarily as immigrants, with capital invested in production of textile and textile products or with expert knowledge and entrepreneurship ability contributing to certain special features of Yugoslav and Serbian textile industry during the period of its development between the two World Wars. In this period the first industrial businesses for ready-to-wear and knitwear clothes have appeared, due to availability of locally manufactured woven and knit fabric, mostly produced from imported thread material. Both their initial establishment and later development were crucially influenced by foreign investments and immigrant workforce, hand-in-hand with craft workshops and communal manufactures specializing in finishing the pre-made products and creating the recognizable brand products. In addition to the predominant foreign capital from Austria, primarily Vienna, the next most important share was that of capital from Czechia, only distantly followed by that from England and Italy, with a significant contribution by the Jewish community from several European countries. At the same time, most of the qualified workforce immigrated from Czechia, including both ethnic Germans and ethnic Czech.

  5. Waste metal hydroxide sludge as adsorbent for a reactive dye.

    Science.gov (United States)

    Santos, Sílvia C R; Vílar, Vítor J P; Boaventura, Rui A R

    2008-05-30

    An industrial waste sludge mainly composed by metal hydroxides was used as a low-cost adsorbent for removing a reactive textile dye (Remazol Brilliant Blue) in solution. Characterization of this waste material included chemical composition, pH(ZPC) determination, particle size distribution, physical textural properties and metals mobility under different pH conditions. Dye adsorption equilibrium isotherms were determined at 25 and 35 degrees C and pH of 4, 7 and 10 revealing reasonably fits to Langmuir and Freundlich models. At 25 degrees C and pH 7, Langmuir fit indicates a maximum adsorption capacity of 91.0mg/g. An adsorptive ion-exchange mechanism was identified from desorption studies. Batch kinetic experiments were also conducted at different initial dye concentration, temperature, adsorbent dosage and pH. A pseudo-second-order model showed good agreement with experimental data. LDF approximation model was used to estimate homogeneous solid diffusion coefficients and the effective pore diffusivities. Additionally, a simulated real effluent containing the selected dye, salts and dyeing auxiliary chemicals, was also used in equilibrium and kinetic experiments and the adsorption performance was compared with aqueous dye solutions.

  6. A Review on Adsorption of Cationic Dyes using Activated Carbon

    Directory of Open Access Journals (Sweden)

    Corda Nikita Chrishel

    2018-01-01

    Full Text Available In this article efficiency of activated carbon as a potent adsorbent of cationic dyes has been reviewed. Non-biodegradable nature of pollutants and their removal in the present generation is a great challenge. Therefore, extensive study on adsorption of these classes of pollutants from water bodies is being carried out. Methylene blue (majorly a dye seen in the effluent streams of textile, printing, paper industries along with some of the commonly used cationic dyes in process industries and their sorption on activated carbon are reviewed here. High cost of commercially activated carbon which is a limitation to its extensive use have paved way for study of adsorption by naturally obtained and extracted activated carbon from agricultural wastes and various other sources. The purpose of this review paper is to summarize the available information on the removal of cationic dyes using naturally extracted and commercially obtained activated carbon. Various parameters such as temperature, initial dye concentration, pH, contact time, adsorbent dosage, particle size, stirring, agitation etc. were studied and the optimum parameters were determined based on the experimental outcomes. Equilibrium data was examined using Langmuir, Freundlich, Temkin and Dubinin–Radushkevich and few other isotherm models. Kinetic studies also have been carried out to find the most suitable way of expressing the adsorption process.

  7. Preferential treatment in transition economy the case of state-owned enterprises in the textile and garment industry in Vietnam

    OpenAIRE

    Knutsen, Hege Merete; Nguyen, Cuong Manh

    2004-01-01

    The article examines the role and contribution of preferential treatment of state enterprises to growth in the textile and garment industry. State enterprises are still the largest single sector in the textile and garment industry in Vietnam, but are losing market shares to private Vietnamese enterprises and foreign-owned enterprises despite the benefits that they enjoy. However, in the present context of economic transition and keen competition in the global market, well-managed state enterp...

  8. Pengaruh konsentrasi pigmen indigo pada pewarnaan (dyeing dan pengulangan warna (topping pada kulit bludru

    Directory of Open Access Journals (Sweden)

    Emiliana Kasmudjiastuti

    2007-06-01

    Full Text Available Paste indigo pigment having blue colour was produced from fermentation of indigofera tinctoria leaves and twigs. Having was very popular dye and was used especially in textile industries and leather industries of fur. The aim of the study was to the optimum concentration of indigo pigmen on dyeing of suede leather. The materials used in study were crust suede leather, indigo pigmen, wetting agent, soda ash, ammonia, formic acid sulfonated oil, and redactors such as palm sugar. The dying of leather using indigo pigmen was principally similar with common dyeing and pH of indigo is 11.5, however pH on several steps must adjusted. Variation of the concentration of in dyeing was 0.5, 1, and 1.5% respectively. Performance test were of conducted for dye penetration, colour rub fastness (dry, wet, sweat resistant, and sun light resistant for 6, 13, and 20 hours respectively. The results showed that the optimum concentration of pigmen indigo was 9% dyeing and 1 % for topping with level dye, indicated appropriate penetration dye into the cross-section leather, no fading was performed by dry colour fastness test (score 4/5 and wet colour fastness test (score 4, good sweat resistant (score 5, no colour fading on the exposure to sun light for 20 hours (score 4.

  9. Irradiation treatment of textile dyes: Apollofix-red

    International Nuclear Information System (INIS)

    Wojnarovits, L.; Palfi, T.; Takacs, E.

    2004-01-01

    The UV-VIS absorption spectra of azo dyes in aqueous solutions strongly overlap with the spectra of intermediates produced in reaction with the intermediates of water radiolysis. This overlap complicates the investigation of reaction mechanisms. The paper describes a method for the separation of the two spectra on the example of Apollofix-Red, a triazine and H-acid containing dye. The reactivity of water radiolysis intermediates (e aq - , OH, H, O 2 /HO 2 ) with the dye is also discussed. The most intensive decolouration was found in the reaction of e aq - and H which is due to the fast reaction of these intermediates with the -N=N-azo group of the unreacted molecule and their slow reaction with the transformed molecules. (author)

  10. Treatment of textiles industrial wastewater by electron beam and biological treatment (sbr)

    International Nuclear Information System (INIS)

    Khomsaton Abu Bakar; Khairul Zaman Mohd Dahlan; Zulkafli Ghazali; Ting Teo Ming

    2008-08-01

    Study of treating textiles industrial wastewater with combined of electron beam and Tower Style Biological Treatment (TSB) was investigated in Korea. In this project, textiles wastewater was also treated with electron beam, but hybrid with Sequencing Batch Reactor (SBR). The purpose of this research is to develop combined electron beam treatment with existing biological treatment facility (SBR), of textile industries in Malaysia. The objectives of this project are to determine the effective irradiation parameter for treatment and to identify effective total retention time in SBR system. To achieve the objective, samples fill in polypropyle tray were irradiated at 1 MeV, 20 mA and 1 MeV ,5 mA at doses 11, 20, 30, 40 and 50 kGy respectively. Raw effluent and two series of irradiated effluent at 1 MeV 20 mA (11, 20, 30, 40 and 50 kGy) and 1 MeV 5 mA (11, 20, 30, 40 and 50 kGy) were then treated in SBR system. Samples were analysed at 6, 14 and 20 hrs after aeration in the SBR. The results show that, average reduction in BOD was about 2-11% after irradiated at 5 mA, and the percentage increased to 21-73% after treatment in SBR system. At 20 mA, BOD reduced to 7-29% during irradiation and the value increased to 57-87% after treatment in SBR system. (Author)

  11. Investigation of Heating Behaviour of E-textile Structures

    OpenAIRE

    H. Sezgin; S. Kursun Bahadır; Y. E. Boke; F. Kalaoğlu

    2015-01-01

    By textile science incorporating with electronic industry, developed textile products start to take part in different areas such as industry, military, space, medical etc. for health, protection, defense, communication and automation. Electronic textiles (e-textiles) are fabrics that contain electronics and interconnections with them. In this study, two types of base yarns (cotton and acrylic) and three types of conductive steel yarns with different linear resistance valu...

  12. Decolorization of Remazol Black-B azo dye in soil by fungi

    Directory of Open Access Journals (Sweden)

    Azeem Khalid*, Sadia Batool, Muhammad Tariq Siddique, Zilli Huma Nazli, Riffat Bibi, Shahid Mahmood and Muhammad Arshad

    2011-04-01

    Full Text Available Textile industry is known to release huge amount of dyes in the water and soil environments during the dyeingprocess. The present study was planned with the aim to remove azo dye toxicants from the soil using fungal strains.The fungi were isolated by using Remazol Black-B azo dye as the sole source of C and N. Ten isolates were initiallyselected for testing their decolorization potential in the liquid medium. Three most effective strains were used tostudy the decolorization of Remazol Black-B in soil. The strain S4 was found to be very effective in removing thedye Remazol Black-B from liquid medium as well as in soil suspension. More than 95% decolorization by the strainS4 was observed in soil under optimal incubation conditions. Overall, the dye decolorization was maximum at 100mg dye kg-1 soil at pH 7-8 under static conditions. Glucose, moisture and aeration also affected the decolorizationefficacy of the fungal strain in soil. This study implies that fungi could be used for bioremediation of dyecontaminatedsites.

  13. Comparison of Moringa stenopetala seed extract as a clean coagulant with Alum and Moringa stenopetala-Alum hybrid coagulant to remove direct dye from Textile Wastewater.

    Science.gov (United States)

    Dalvand, Arash; Gholibegloo, Elham; Ganjali, Mohammad Reza; Golchinpoor, Najmeh; Khazaei, Mohammad; Kamani, Hossein; Hosseini, Sara Sadat; Mahvi, Amir Hossein

    2016-08-01

    In this study, the efficiency of Moringa stenopetala seed extract was compared with alum and M. stenopetala-alum hybrid coagulant to remove Direct Red 23 azo dye from textile wastewater. The effects of parameters such as pH, coagulant dose, type of salt used for the extraction of coagulant and initial dye concentration on dye removal efficiency were investigated. Moreover, the existing functional groups on the structure of M. stenopetala coagulant (MSC) were determined by Fourier transform infrared spectroscopy, and the morphology of sludge produced by MSC, alum, and hybrid coagulant was characterized by scanning electron microscopy. Ninhydrin test was also used to determine the quantity of primary amines in the MSC and Moringa oleifera coagulant (MOC). According to the results, with increasing the coagulant dose and decreasing the initial dye concentration, dye removal efficiency has increased. The maximum dye removal of 98.5, 98.2, and 98.3 % were obtained by using 240, 120, and 80 mg/L MSC, alum and hybrid coagulant at pH 7, respectively. The results also showed MSC was much more effective than MOC for dye removal. The volume of sludge produced by MSC was one fourth and half of those produced by alum and hybrid coagulant, respectively. Based on the results, hybrid coagulant was the most efficient coagulant for direct dye removal from colored wastewater.

  14. Inconsistent Norms in Buyer-Supplier Relations – A Study of Sustainability Introduction in the Textile and Apparel Industry

    DEFF Research Database (Denmark)

    Christensen, Ulla Normann

    2016-01-01

    affected the applied exchange norms. We find thatsuppliers have experienced that the behavior of buying companies has become more transactional,since the textile and apparel industry started requiring sustainability. The norm set of buyingcompanies has changed and may be separated into two: A previous set...... a significant role in determining the behavior characteristics in contractual andrelational exchanges. In this study, we interviewed 30 suppliers/manufacturers in the textile andapparel industry in India, Bangladesh and China, to shed light on how the introduction ofsustainability requirements from buyers has...

  15. Removal of reactive dyes from wastewater by shale

    Directory of Open Access Journals (Sweden)

    Jareeya Yimrattanabovorn

    2012-02-01

    Full Text Available Colored textile effluents represent severe environmental problems as they contain mixture of chemicals, auxiliariesand dyestuffs of different classes and chemical constitutions. Elimination of dyes in the textile wastewater by conventionalwastewater treatment methods is very difficult. At present, there is a growing interest in using inexpensive and potentialmaterials for the adsorption of reactive dyes. Shale has been reported to be a potential media to remove color from wastewaterbecause of its chemical characteristics. In this study, shale was used as an adsorbent. The chosen shale had particlesizes of : A (1.00 < A < 2.00 mm, B (0.50 < B < 1.00 mm, C (0.25 < C < 0.50 mm, D (0.18 < D < 0.25 mm and E (0.15 < E < 0.18mm. Remazol Deep Red RGB (Red, Remazol Brilliant Blue RN gran (Blue and Remazol Yellow 3RS 133% gran (Yellow wereused as adsorbates. Batch adsorption experiments were performed to investigate the effect of contact time, pH, temperatureand initial dye concentration. It was found that the equilibrium data were best described by the Langmuir isotherm model,with the maximum monolayer adsorption capacities of 0.0110-0.0322 mg/g for Red, 0.4479-1.1409 mg/g for Blue and 0.0133-0.0255 mg/g for Yellow, respectively. The maximum adsorption capacity of reactive dye by shale occurred at an initial pH of 2,initial concentration of 700 Pt-Co and temperature 45°C. Reactive dye adsorption capacities increased with an increase of theinitial dye concentration and temperature whereas with a decrease of pH. The fixed bed column experiments were appliedwith actual textile wastewater for estimation of life span. The results showed that COD and color removal efficiencies of shalefix bed column were 97% and 90%, respectively. Also the shale fixed bed columns were suitable for using with textile effluentfrom activated sludge system because of their COD and color removal efficiencies and life expectancy comparison using withdyebath wastewater and raw

  16. An integrated (electro- and bio-oxidation) approach for remediation of industrial wastewater containing azo-dyes: Understanding the degradation mechanism and toxicity assessment

    Energy Technology Data Exchange (ETDEWEB)

    Aravind, Priyadharshini, E-mail: priya.bdu07@gmail.com [Corrosion and Materials Protection Division (CMPD), CSIR—Central electrochemical research institute (CECRI), Karaikudi 630 003 (India); Selvaraj, Hosimin [Corrosion and Materials Protection Division (CMPD), CSIR—Central electrochemical research institute (CECRI), Karaikudi 630 003 (India); Ferro, Sergio [Ecas4 Australia, Unit 8, 1 London Road, Mile End, South Australia 5031 (Australia); Sundaram, Maruthamuthu [Corrosion and Materials Protection Division (CMPD), CSIR—Central electrochemical research institute (CECRI), Karaikudi 630 003 (India)

    2016-11-15

    Highlights: • Firstly, the mediated electro-oxidation allows rapid discoloration of the effluent. • Cost effective sunlight-mediated removal of bio-toxic active chlorine species. • Electrochemical pretreatment enhances the biodegradability of textile wastewater. • About 90% COD removal was achieved by a subsequent biodegradation. • By-products from degradation of dyes have shown to be ecofriendly and non-toxic. - Abstract: A hybrid approach for the remediation of recalcitrant dye wastewater is proposed. The chlorine-mediated electrochemical oxidation of real textile effluents and synthetic samples (using Ti/IrO{sub 2}-RuO{sub 2}-TiO{sub 2} anodes), lead to discoloration by 92% and 89%, respectively, in 100 min, without significant mineralization. The remediation was obtained through biodegradation, after removing the residual bio-toxic active chlorine species via sunlight exposition. Results show that the electrochemical discoloration enhances the effluent biodegradability with about 90% COD removal employing acclimatized naphthalene-degrading bacterial consortia, within 144 h. Based on results obtained through FT-IR and GC–MS, it is likely that azo group stripping and oxidative cleavage of dyes occur due to the nucleophilic attack of active chlorine species during electro-oxidation. This leads to generation of aromatic intermediates which are further desulfonated, deaminated or oxidized only at their functional groups. These aromatic intermediates were mineralized into simpler organic acids and aldehydes by bacterial consortia. Phyto-toxicity trials on Vigna radiata confirmed the toxic nature of the untreated dye solutions. An increase in root and shoot development was observed with the electrochemically treated solutions, the same was higher in case of bio-treated solutions. Overall, obtained results confirm the capability of the proposed hybrid oxidation scheme for the remediation of textile wastewater.

  17. ACHIEVEMENT OF THE HIGHEST LEVEL OF SAFETY AND HEALTH AT WORK AND THE SATISFACTION OF EMPLOYEES IN THE TEXTILE INDUSTRY

    Directory of Open Access Journals (Sweden)

    Snezana Urosevic

    2016-12-01

    Full Text Available Safety and health at work involves the exercise of such working conditions that take certain measures and activities in order to protect the life and health of employees. The interest of society, of all stakeholders and every individual is to achieve the highest level of safety and health at work, to unwanted consequences such as injuries, occupational diseases and diseases related to work are reduced to a minimum, and to create the conditions work in which employees have a sense of satisfaction in the performance of their professional duties. Textile industry is a sector with higher risk, because the plants of textile industry prevailing unfavorable microclimate conditions: high air temperature and high humidity, and often insufficient illumination of rooms and increased noise. The whole line of production in the textile industry, there is a risk of injury, the most common with mechanical force, or gaining burns from heat or chemicals. All of these factors are present in the process of production and processing of textiles and the same may affect the incidence of occupational diseases of workers, absenteeism, reduction of their working capacity and productivity. With the progress of the textile industry production increases in the number of hazardous and harmful substances that may pose a potential danger to the employee in this branch of the economy as well as the harmful impact on the environment. Therefore, it is important to give special attention to these problems.

  18. Multiwalled carbon nanotube coated polyester fabric as textile based flexible counter electrode for dye sensitized solar cell.

    Science.gov (United States)

    Arbab, Alvira Ayoub; Sun, Kyung Chul; Sahito, Iftikhar Ali; Qadir, Muhammad Bilal; Jeong, Sung Hoon

    2015-05-21

    Textile wearable electronics offers the combined advantages of both electronics and textile characteristics. The essential properties of these flexible electronics such as lightweight, stretchable, and wearable power sources are in strong demand. Here, we have developed a facile route to fabricate multi walled carbon nanotube (MWCNT) coated polyester fabric as a flexible counter electrode (CE) for dye sensitized solar cells (DSSCs). A variety of MWCNT and enzymes with different structures were used to generate individual enzyme-dispersed MWCNT (E-MWCNT) suspensions by non-covalent functionalization. A highly concentrated colloidal suspension of E-MWCNT was deposited on polyester fabric via a simple tape casting method using an air drying technique. In view of the E-MWCNT coating, the surface structure is represented by topologically randomly assembled tubular graphene units. This surface morphology has a high density of colloidal edge states and oxygen-containing surface groups which execute multiple catalytic sites for iodide reduction. A highly conductive E-MWCNT coated fabric electrode with a surface resistance of 15 Ω sq(-1) demonstrated 5.69% power conversion efficiency (PCE) when used as a flexible CE for DSSCs. High photo voltaic performance of our suggested system of E-MWCNT fabric-based DSSCs is associated with high sheet conductivity, low charge transfer resistance (RCT), and excellent electro catalytic activity (ECA). Such a conductive fabric demonstrated stable conductivity against bending cycles and strong mechanical adhesion of E-MWCNT on polyester fabric. Moreover, the polyester fabric is hydrophobic and, therefore, has good sealing capacity and retains the polymer gel electrolyte without seepage. This facile E-MWCNT fabric CE configuration provides a concrete fundamental background towards the development of textile-integrated solar cells.

  19. Modified Multiwalled Carbon Nanotubes for Treatment of Some Organic Dyes in Wastewater

    Directory of Open Access Journals (Sweden)

    M. I. Mohammed

    2014-01-01

    Full Text Available In Iraq, a large quantity of basic orange and methyl violet dyes contaminated wastewater from textile industries is discharged into Tigris River. So the aim of this work is to found an efficient and fast technique that can be applied directly for removal of such dyes from the wastewater before discharging into river. Accordingly, CNTs as a new approach prepared by CCVD technique were purified, functionalized, and used as adsorption material to remove dyes from wastewater. The effect of pH, contact time, CNTs dosage, and dyes concentration on removal of pollutants was studied. The removal percentage of both dyes was proportional to the contact time, CNTs dosage, and pH and inversely proportional to the dyes concentration. The results show that the equilibrium time was 20 and 30 min for basic orange and methyl violet dyes, respectively, and the maximum removal percentage for all dyes concentrations was at pH = 8.5 and CNTs dosage of 0.25 g/L and 0.3 g/L for methyl violet and basic orange dye, respectively. The adsorption isotherm shows that the correlation coefficient of Freundlich model was higher than Langmuir model for both dyes, indicating that the Freundlich model is more appropriate to describe the adsorption characteristics of organic pollutants.

  20. Characterization of waste waters of tannery, fertilizer and textile industries in Multan region

    International Nuclear Information System (INIS)

    Ansan, T.M.; Malik, S.A.

    2001-01-01

    This study evaluates various physico-chemical characteristics such as pH, electrical conductivity, dissolved solids, hardness, apparent color, odor, elemental concentrations, chloride contents, carbonates, bicarbonates, residual sodium carbonate and sodium absorption ratio of waste waters of three major industries, i.e. tannery, fertilizer and textile, situated in Multan District of the Punjab province, Pakistan. Waste waters, in general, have been found to be hard, alkaline in nature and contain variable amounts of dissolved solids. High concentration of chromium (10.7 mg 1-1) was found in tannery wastewater. Zinc and copper concentrations were not quantifiable. Water quality classes (C4-S4), (C4-S1) and (C4-S1, C3-S1, C3-S4 and C3-S2) have been assigned to tannery, fertilizer and textile waste waters respectively. Results indicate that these untreated industrial waste waters are potential hazards to human health and unsuitable for irrigation usage. (author)

  1. Photocatalytic degradation of textile azo dye over Ce{sub 1-x}Sn {sub x}O{sub 2} series

    Energy Technology Data Exchange (ETDEWEB)

    Borker, Pritam [Department of Chemistry, Goa University, Goa 403 206 (India); Salker, A.V. [Department of Chemistry, Goa University, Goa 403 206 (India)]. E-mail: sal_arun@rediffmail.com

    2006-08-25

    Ce{sub 1-x}Sn {sub x}O{sub 2} (x = 0, 0.1, 0.2, 0.3 and 1.0) have been prepared by co-precipitation method and characterized by XRD, FTIR, BET surface area and TG/DSC methods. The solid state studies such as electrical resistivity, magnetic susceptibility and diffuse reflectance measurements have been carried out and are attempted to correlate with the photocatalytic activity of these compositions. Solar radiation induced degradation of the textile diazo dye Naphthol Blue Black (NBB) has been carried out on these semiconductor compositions. The surface adsorbed oxygen plays an important role in scavenging photogenerated electrons thus preventing the recombination between electron and hole, inducing effective photodegradation.

  2. A study by non-isothermal thermal methods of spruce wood bark materialss after their application for dye removal

    Directory of Open Access Journals (Sweden)

    VIORICA DULMAN

    2005-11-01

    Full Text Available This paper deals with a study of some materials obtained from spruce bark (Picea abies, Romania, after retention of some dyes frequently used in dyeing processes in the textile industry and waste water treatment. These materials obtained by dye retention exhibit a particular thermal behavior which is different from that of the blank sample (spruce bark. The characteristic temperatures, weight losses, the residue remaining after thermo-oxidative degradation, as well as the activation energies of the significant thermo-destruction stages, estimated from non-isothermal thermogravimetric data, together with the thermal quantities calculated from DTAdata support the conclusion presented in a previous study on dye retention from aqueous solution. The obtained results made evident that, under optimal retention conditions, spruce bark shows the highest retention capacity for the Basic Blue dye, followed by Direct Brown 95 and Direct Brown 2.

  3. The Potential of RFID Technology in the Textile and Clothing Industry: Opportunities, Requirements and Challenges

    Science.gov (United States)

    Legnani, Elena; Cavalieri, Sergio; Pinto, Roberto; Dotti, Stefano

    In the current competitive environment, companies need to extensively exploit the use of advanced technologies in order to develop a sustainable advantage, enhance their operational efficiency and better serve customers. In this context, RFID technology has emerged as a valid support for the company progress and its value is becoming more and more apparent. In particular, the textile and clothing industry, characterised by short life-cycles , quick response production , fast distribution, erratic customer preferences and impulsive purchasing, is one of the sectors which can extensively benefit from the RFID technology. However, actual applications are still very limited, especially in the upstream side of the supply network. This chapter provides an insight into the main benefits and potentials of this technology and highlights the main issues which are currently inhibiting its large scale development in the textile and clothing industry. The experience of two industry-academia projects and the relative fallouts are reported.

  4. Adsorption of a textile dye "Indanthrene Blue RS (C.I. Vat Blue 4)" from aqueous solutions onto smectite-rich clayey rock.

    Science.gov (United States)

    Chaari, Islem; Feki, Mongi; Medhioub, Mounir; Bouzid, Jalel; Fakhfakh, Emna; Jamoussi, Fakher

    2009-12-30

    The adsorption of a textile dye, namely, Indanthrene Blue RS (C.I. Vat Blue 4) onto smectite-rich clayey rock (AYD) and its sulphuric acid-activated products (AYDS) in aqueous solution was studied in a batch system with respect to contact time, pH, and temperature. The adsorbents employed were characterized by X-ray diffraction, infrared spectroscopy and specific surface area, cation exchange capacity and point of zero charge were also estimated. The effect of contact time on dye adsorption showed that the equilibrium was reached after a contact time of 40 min for the both adsorbents. The optimum pH for dye retention was found 6.0 for AYDS and 7.3 for AYD. The equilibrium adsorption data were analysed using the Langmuir and Freundlich isotherms. The adsorption capacities (Q(m)) for AYD and AYDS were found 13.92 mg/g and 17.85 mg/g, respectively. The effect of temperature on the adsorption was also investigated; adsorption of Indanthrene Blue RS is an endothermic process. This study demonstrates that all the considered adsorbents can be used as an alternative emerging technology for water treatment.

  5. TEXTILE SURFACE MODIFICATION BY PYHSICAL VAPOR DEPOSITION – (REVIEW

    Directory of Open Access Journals (Sweden)

    YUCE Ismail

    2017-05-01

    Full Text Available Textile products are used in various branches of the industry from automotive to space products. Textiles produced for industrial use are generally referred to as technical textiles. Technical textiles are nowadays applied to several areas including transportation, medicine, agriculture, protection, sports, packaging, civil engineering and industry. There are rapid developments in the types of materials used in technical textiles. Therefore, modification and functionalization of textile surfaces is becoming more crucial. The improvements of the properties such as anti-bacterial properties, fire resistivity, UV radiation resistance, electrical conductivity, self cleaning, and super hydrophobic, is getting more concern with respect to developments in textile engineering. The properties of textile surfaces are closely related to the fiber structure, the differences in the polymer composition, the fiber mixture ratio, and the physical and chemical processes applied. Textile surface modifications can be examined in four groups under the name mechanical, chemical, burning and plasma. Surface modifications are made to improve the functionality of textile products. Textile surface modifications affect the properties of the products such as softness, adhesion and wettability. The purpose of this work is to reveal varieties of vapor deposition modifications to improve functionality. For this purpose, the pyhsical vapor deposition methods, their affects on textile products and their end-uses will be reviewed.

  6. Applying of artificial intelligence in the textile industry as factor of innovative development of the branch

    OpenAIRE

    Yuldashev N.; Tursunov B.

    2018-01-01

    In the article, the authors carried out a theoretical analysis of the practical applications of artificial intelligence in various fields. It is concluded that the use of artificial intelligence in the textile industry, in particular in management, will serve as a jerk to the innovative development of the industry.

  7. DECOLORIZATION OF AZO DYES AND MINERALIZATION OF PHENANTHRENE BY TRAMETES SP. AS03 ISOLATED FROM INDONESIAN MANGROVE FOREST

    Directory of Open Access Journals (Sweden)

    Asep Hidayat

    2014-04-01

    Full Text Available Textile industry contributes the most disposals of synthetic dyes, and about 40% of textile dyes has been generating high amount of colored wastewater. Polycyclic aromatic hydrocarbons (PAHs, such as phenanthrene, is a group of organic compounds, that structurally comprised of two or more benzene rings, which persist in air, water, and soil. The organic pollutants of dyes and PAHs have adversely effects the food chain and are potentially toxic, mutagenic, and carcinogenic to the environment. The objective of this research is to screen and investigate the potential fungus from mangrove forest to degrade azo dyes and phenanthrene.  In this study, fungi were collected from mangrove forest in Riau Province – Sumatra – Indonesia. Previously, Trametes sp. AS03 is one of the fungi isolated from mangrove forest in Riau Province, that was able to decolorize Remazol Brilliant Blue R (RBBR. The capability of Trametes sp. AS03 to decolorize four azo dyes, Remazol B. Violet (V5, Levafix Orange E3GA (Or64, Levafix B. Red E-6BA (R159, and Sumifix S. Scarlet 2GF (R222, were further evaluated. The result shows that Trametes sp. AS03 decolorized 91, 60, 48, and 31 of V5, R222, R159, and Or64, respectively. By showing its capability to decolorize some of the dyes, Trametes sp. AS03 was used to break down phenanthrene. AS03 degraded more than 70% of phenanthrene in 15 days.

  8. Energy conservation potential in Taiwanese textile industry

    International Nuclear Information System (INIS)

    Hong, Gui-Bing; Su, Te-Li; Lee, Jenq-Daw; Hsu, Tsung-Chi; Chen, Hua-Wei

    2010-01-01

    Since Taiwan lacks sufficient self-produced energy, increasing energy efficiency and energy savings are essential aspects of Taiwan's energy policy. This work summarizes the energy savings implemented by 303 firms in Taiwan's textile industry from the on-line Energy Declaration System in 2008. It was found that the total implemented energy savings amounted to 46,074 ton of oil equivalent (TOE). The energy saving was equivalent to 94,614 MWh of electricity, 23,686 kl of fuel oil and 4887 ton of fuel coal. It represented a potential reduction of 143,669 ton in carbon dioxide emissions, equivalent to the annual carbon dioxide absorption capacity of a 3848 ha plantation forest. This study summarizes energy-saving measures for energy users and identifies the areas for making energy saving to provide an energy efficiency baseline.

  9. Enhanced photocatalytic performance of CeO2-TiO2 nanocomposite for degradation of crystal violet dye and industrial waste effluent

    Science.gov (United States)

    Zahoor, Mehvish; Arshad, Amara; Khan, Yaqoob; Iqbal, Mazhar; Bajwa, Sadia Zafar; Soomro, Razium Ali; Ahmad, Ishaq; Butt, Faheem K.; Iqbal, M. Zubair; Wu, Aiguo; Khan, Waheed S.

    2018-03-01

    This study presents the synthesis of CeO2-TiO2 nanocomposite and its potential application for the visible light-driven photocatalytic degradation of model crystal violet dye as well as real industrial waste water. The ceria-titania (CeO2-TiO2) nanocomposite material was synthesised using facile hydrothermal route without the assistance of any template molecule. As-prepared composite was characterised by SEM, TEM, HRTEM, XRD, XPS for surface features, morphological and crystalline characters. The formed nanostructures were determined to possess crystal-like geometrical shape and average size less than 100 nm. The as-synthesised nanocomposite was further investigated for their heterogeneous photocatalytic potential against the oxidative degradation of CV dye taken as model pollutant. The photo-catalytic performance of the as-synthesised material was evaluated both under ultra-violet as well as visible light. Best photocatalytic performance was achieved under visible light with complete degradation (100%) exhibited within 60 min of irradiation time. The kinetics of the photocatalytic process were also considered and the reaction rate constant for CeO2-TiO2 nanocomposite was determined to be 0.0125 and 0.0662 min-1 for ultra-violet and visible region, respectively. In addition, the as-synthesised nanocomposite demonstrated promising results when considered for the photo-catalytic degradation of coloured industrial waste water collected from local textile industry situated in Faisalabad region of Pakistan. Enhanced photo-catalytic performance of CeO2-TiO2 nanocomposite was proposed owing to heterostructure formation leading to reduced electron-hole recombination.

  10. Quinolines in clothing textiles--a source of human exposure and wastewater pollution?

    Science.gov (United States)

    Luongo, Giovanna; Thorsén, Gunnar; Ostman, Conny

    2014-05-01

    A production process in which the use of various types of chemicals seems to be ubiquitous makes the textile industry a growing problem regarding both public health as well as the environment. Among several substances used at each stage, the present study focuses on the quinolines, a class of compounds involved in the manufacture of dyes, some of which are skin irritants and/or classified as probable human carcinogens. A method was developed for the determination of quinoline derivatives in textile materials comprising ultrasound-assisted solvent extraction, solid phase extraction cleanup, and final analysis by gas chromatography/mass spectrometry. Quinoline and ten quinoline derivatives were determined in 31 textile samples. The clothing samples, diverse in color, material, brand, country of manufacture, and price, and intended for a broad market, were purchased from different shops in Stockholm, Sweden. Quinoline, a possible human carcinogen, was found to be the most abundant compound present in almost all of the samples investigated, reaching a level of 1.9 mg in a single garment, and it was found that quinoline and its derivatives were mainly correlated to polyester material. This study points out the importance of screening textiles with nontarget analysis to investigate the presence of chemicals in an unbiased manner. Focus should be primarily on clothing worn close to the body.

  11. Identifying potential environmental impacts of waste handling strategies in textile industry.

    Science.gov (United States)

    Yacout, Dalia M M; Hassouna, M S

    2016-08-01

    Waste management is a successful instrument to minimize generated waste and improve environmental conditions. In spite of the large share of developing countries in the textile industry, limited information is available concerning the waste management strategies implemented for textiles on those countries and their environmental impacts. In the current study, two waste management approaches for hazardous solid waste treatment of acrylic fibers (landfill and incineration) were investigated. The main research questions were: What are the different impacts of each waste management strategy? Which waste management strategy is more ecofriendly? Life cycle assessment was employed in order to model the environmental impacts of each waste streaming approach separately then compare them together. Results revealed that incineration was the more ecofriendly approach. Highest impacts of both approaches were on ecotoxicity and carcinogenic potentials due to release of metals from pigment wastes. Landfill had an impact of 46.8 % on human health as compared to 28 % by incineration. Incineration impact on ecosystem quality was higher than landfill impact (68.4 and 51.3 %, respectively). As for resources category, incineration had a higher impact than landfill (3.5 and 2.0 %, respectively). Those impacts could be mitigated if state-of-the-art landfill or incinerator were used and could be reduced by applying waste to energy approaches for both management systems In conclusion, shifting waste treatment from landfill to incineration would decrease the overall environmental impacts and allow energy recovery. The potential of waste to energy approach by incineration with heat recovery could be considered in further studies. Future research is needed in order to assess the implementation of waste management systems and the preferable waste management strategies in the textile industry on developing countries.

  12. Heavy metals in handloom-dyeing effluents and their biosorption by agricultural byproducts.

    Science.gov (United States)

    Nahar, Kamrun; Chowdhury, Md Abul Khair; Chowdhury, Md Akhter Hossain; Rahman, Afzal; Mohiuddin, K M

    2018-03-01

    The Madhabdi municipality in the Narsingdi district of Bangladesh is a well-known area for textile, handloom weaving, and dyeing industries. These textile industries produce a considerable amount of effluents, sewage sludge, and solid waste materials every day that they directly discharge into surrounding water bodies and agricultural fields. This disposal poses a serious threat to the overall epidemic and socio-economic pattern of the locality. This research entailed the collection of 34 handloom-dyeing effluent samples from different handloom-dyeing industries of Madhabdi, which were then analyzed to determine the contents of the heavy metals iron (Fe), zinc (Zn), copper (Cu), chromium (Cr), manganese (Mn), lead (Pb), and cadmium (Cd). Average concentrations of Fe, Cr, Cu, Pb, Mn, and Zn were 3.81, 1.35, 1.70, 0.17, 0.75, and 0.73 mg L -1 , respectively, whereas Cd content was below the detectable limit of the atomic adsorption spectrophotometer. The concentrations of Fe, Cr, Cu, Pb, and Mn exceed the industrial effluent discharge standards (IEDS) for inland surface water and irrigation water guideline values. A biosorption experiment of the heavy metals (Fe, Cr, Cu, Mn, and Zn) was conducted without controlling for any experimental parameters (e.g., pH, temperature, or other compounds present in the effluent samples) by using four agricultural wastes or byproducts, namely rice husk, sawdust, lemon peel, and eggshell. Twenty grams of each biosorbent was added to 1 L of effluent samples and stored for 7 days. The biosorption capacity of each biosorbent is ranked as follows: eggshell, sawdust, rice husk, and lemon peel. Furthermore, the biosorption affinity of each metal ion was found in the following order: Cu and Cr (both had similar biosorption affinity), Zn, Fe, Mn. The effluents should not be discharged before treatment, and efficient treatment of effluents is possible with eggshell powder or sawdust at a rate of 20 g of biosorbent per liter of effluents.

  13. Removal of Triphenylmethane Dyes by Bacterial Consortium

    Directory of Open Access Journals (Sweden)

    Jihane Cheriaa

    2012-01-01

    Full Text Available A new consortium of four bacterial isolates (Agrobacterium radiobacter; Bacillus spp.; Sphingomonas paucimobilis, and Aeromonas hydrophila-(CM-4 was used to degrade and to decolorize triphenylmethane dyes. All bacteria were isolated from activated sludge extracted from a wastewater treatment station of a dyeing industry plant. Individual bacterial isolates exhibited a remarkable color-removal capability against crystal violet (50 mg/L and malachite green (50 mg/L dyes within 24 h. Interestingly, the microbial consortium CM-4 shows a high decolorizing percentage for crystal violet and malachite green, respectively, 91% and 99% within 2 h. The rate of chemical oxygen demand (COD removal increases after 24 h, reaching 61.5% and 84.2% for crystal violet and malachite green, respectively. UV-Visible absorption spectra, FTIR analysis and the inspection of bacterial cells growth indicated that color removal by the CM-4 was due to biodegradation. Evaluation of mutagenicity by using Salmonella typhimurium test strains, TA98 and TA100 studies revealed that the degradation of crystal violet and malachite green by CM-4 did not lead to mutagenic products. Altogether, these results demonstrated the usefulness of the bacterial consortium in the treatment of the textile dyes.

  14. Portuguese Child Labour: Manufacturing for Change or Continuing Exploitation in the Textiles Industry?

    Science.gov (United States)

    Eaton, Martin; da Silva, Carlos Pereira

    1998-01-01

    Provides an overview of the role of Portuguese child laborers, focusing on the textile, clothing, and footwear industries. Argues that in the long term, positive outcomes will be based upon improved education; an alteration in the views of the factory owners, parents, and their children; and greater knowledge of innovative working practices among…

  15. La industria textil y su regulación en el siglo XVI: caso particular de Toledo = The textile industry and its regulation in the XVI century: Toledo, a particular case

    Directory of Open Access Journals (Sweden)

    María Ángela Jiménez Montañés

    2012-01-01

    Full Text Available ResumenEl sector al que correspondió el mayor protagonismo dentro de la industria europea moderna fue, sin lugar a dudas, el textil. Ello no representaba, en realidad, novedad alguna, pues la industria medieval se desarrolló precisamente en función primordialmente de la fabricación de tejidos. El vestido, al tiempo que una necesidad inmediata, resulta expresión visual de distinción social, aún más que la decoración de la vivienda. Por ello la industria textil creció a expensas tanto de la necesidad como del lujo. Uno de los grandes cambios que se producen en este tipo de industria durante todo el siglo XV y se consolida en el XVI se centra en las relaciones de producción, en la utilización de mano de obra campesina y la consolidación del ciclo de producción artesano rural. La mano de obra rural comienza a trabajar por su cuenta o en dependencia del empresario-productor de la ciudad. Si bien, la profunda transformación de la industria textil tendrá lugar en el siglo XVIII, con la revolución industrial.La transformación de la industria textil del siglo XVI propició la expansión de una nueva figura en el ámbito mercantil, que se denomina mercader-empresario, y por tanto, del sistema doméstico de producción conocido como Verlagssystem. Este nuevo sistema implicará modificaciones de factores claves para el desarrollo de las futuras sociedades mercantiles como pueden ser: el capital, la utilización de la materia prima y su proceso de transformación, la formación de los costes de producción y comercialización, la obtención de beneficios y su distribución, la concentración del capital y la generación de rentes. En definitiva, la creación de una nueva clase social, la burguesía. Este trabajo se centra en la industria sedera de la ciudad de Toledo en el siglo XVI.AbstractThe textile sector, was the greater protagonist, without doubt, within the modern European industry. It did not represent, in fact, newness some

  16. RECYCLED TEXTILES USED IN AUTOMOTIVE INTERIORS. CASE STUDY- FORD MOTOR COMPANY

    Directory of Open Access Journals (Sweden)

    CUC Sunhilde

    2017-05-01

    Full Text Available The environmental movement is affecting all industries, but the textile and automotive industries are two of the few that are constantly being criticized. The automotive industry is the subject of much research, it is the largest manufacturing activity, there is a complex supply chain, is resource intensive and emits various hazardous gases and waste products. The article reviews the current state of automotive industry regarding the textile application. Automotive textiles have been classified as belonging to a category called “Mobiltech” which is one of the main streams of technical textiles. The term means all type of textile components e.g. fibers, filaments, yarns and the fabric used in automobiles. They are classed as technical textile because of the very high performance specifications and special properties required, different from those used in clothing and other applications. The performance of the automotive textiles depends on the fibre properties, fabric structures and various finishes used in the manufacturing processes. After a short presentation of used fibres in car interiors, with advantages and disadvantages it is presented the sustainable textile solutions for the automotive industry. The paper focuses in particular of the use of recycling of textile waste to highlight how the processes of recycled textiles and sustainable textiles production are linked in the automotive sector. A case study with Ford Motor Company outlines and examines their design, development and manufacture process for automotive textiles for car seat coverings and interiors

  17. Effect of Reactive Black 5 azo dye on soil processes related to C and N cycling

    Directory of Open Access Journals (Sweden)

    Khadeeja Rehman

    2018-05-01

    Full Text Available Azo dyes are one of the largest classes of synthetic dyes being used in textile industries. It has been reported that 15–50% of these dyes find their way into wastewater that is often used for irrigation purpose in developing countries. The effect of azo dyes contamination on soil nitrogen (N has been studied previously. However, how does the azo dye contamination affect soil carbon (C cycling is unknown. Therefore, we assessed the effect of azo dye contamination (Reactive Black 5, 30 mg kg−1 dry soil, bacteria that decolorize this dye and dye + bacteria in the presence or absence of maize leaf litter on soil respiration, soil inorganic N and microbial biomass. We found that dye contamination did not induce any change in soil respiration, soil microbial biomass or soil inorganic N availability (P > 0.05. Litter evidently increased soil respiration. Our study concludes that the Reactive Black 5 azo dye (applied in low amount, i.e., 30 mg kg−1 dry soil contamination did not modify organic matter decomposition, N mineralization and microbial biomass in a silty loam soil.

  18. Textile Supercapacitors

    Science.gov (United States)

    Jost, Kristy Alana

    Innovative and interdisciplinary solutions to wearable textile energy storage are explored as power sources for wearable electronics and smart textiles. Due to their long cycle life, non-toxic and inexpensive materials, supercapacitors were converted into textiles. Textile supercapacitors were developed using scalable fabrication methods including screen-printing, yarn making, and 3D computerized knitting. The electrode materials reported in this thesis undergo thorough electrochemical analysis, and are capable of storing up to 0.5 F/cm2 which is on par with conventionally solid supercapacitors (0.6 F/cm2). Capacitive yarns are capable of storing up to 37 mF/cm and are shown to be knittable on industrial knitting equipment. Both are some of the highest reported capacitance for all-carbon systems in the field. Yet both are the only systems composed of inexpensive and non-toxic activated carbon, the most commonly used electrode material used in supercapacitors, opposed to carbon nanotubes or graphene, which are typically more 10-100 times more expensive. However, all of the fabrication techniques reported here are also capable of incorporating a wide variety of materials, ultimately broadening the applications of textile energy storage as a whole. Fully machine knitted supercapacitors are also explored and electrochemically characterized in order to determine how the textile structure affects the capacitance. In conclusion, a wide variety of fabrication techniques for making textile supercapacitors were successfully explored.

  19. Ozone treatment of textile wastewaters for reuse.

    Science.gov (United States)

    Ciardelli, G; Capannelli, G; Bottino, A

    2001-01-01

    Treatment of textile wastewaters by means of an ozonation pilot plant are described. Wastewaters used were produced by a dyeing and finishing factory and were first treated in an active sludge plant and filtrated through sand. In the appropriate conditions very high colour removal (95-99%) was achieved and the effluent could be reused in production processes requiring water of high quality as dyeing yarns or light colorations. Even if the chemical oxygen demand of treated waters was still in a range (75-120 mg/l, a decrease of up to 60%) that was usually considered to be too high for recycling purposes, recycling experiments were successful. The economical viability of the techniques implementation was also demonstrated and the industrial plant is currently under realisation under an EU financed project. The paper considers also the possible improvement of ozone diffusion by means of membrane contactors realised in a second pilot plant, in order to further reduce operating costs of the technique. With respect to traditional systems, the gas/liquid contact surface is much higher being that of the membrane. Ozone at the interface is therefore immediately solubilized and potentially consumed with no additional resistance to the mass transfer.

  20. STRATEGIES FOR SHAOXING TEXTILE COMPANIES IN ECONOMIC CRISIS. CASE STUDY: BOLA TEXTILE COMPANY

    OpenAIRE

    Hu, Qing

    2010-01-01

    During the last decades, China witnesses the fastest growth in World’s economy, and has played the significant role, but in 2008, because of the global crisis, international market shrank dramatically. In this crisis, Shaoxing, located in the Yangtze River delta and the main area dealing with textile manufacturing and processing, got severe influence in the textile industry. Because of that, the recession on the international market results in the heavy burden to Shaoxing textile and garment ...

  1. Partner Selection in Supply Chain of Vietnam’s Textile and Apparel Industry: The Application of a Hybrid DEA and GM (1,1 Approach

    Directory of Open Access Journals (Sweden)

    Chia-Nan Wang

    2017-01-01

    Full Text Available Vietnam is currently among the top-five textile and apparel exporters, and the industry is considered quite attractive to foreign investors. Nevertheless, the global textile and garment industry is experiencing important changes. The three main producing regions in the world are China, Southwest Asia (India, Pakistan, Bangladesh, and Turkey, and ASEAN. In order to maintain its positioning and to establish stable and sustainable Vietnam textile and apparel development, there must be radical changes. Due to this necessity, the authors conducted this study by using grey forecasting to predict and reflect the condition of businesses in the period of 2017–2020, together with combining a DEA model to help businesses select the most appropriate strategic partner in the supply chain in order to achieve economic goals and promote the strength of the businesses partaking in the association. Besides, this helps businesses exploit market opportunities and take advantage of the capabilities of the textile and apparel industry.

  2. Basic dye decomposition kinetics in a photocatalytic slurry reactor

    International Nuclear Information System (INIS)

    Wu, C.-H.; Chang, H.-W.; Chern, J.-M.

    2006-01-01

    Wastewater effluent from textile plants using various dyes is one of the major water pollutants to the environment. Traditional chemical, physical and biological processes for treating textile dye wastewaters have disadvantages such as high cost, energy waste and generating secondary pollution during the treatment process. The photocatalytic process using TiO 2 semiconductor particles under UV light illumination has been shown to be potentially advantageous and applicable in the treatment of wastewater pollutants. In this study, the dye decomposition kinetics by nano-size TiO 2 suspension at natural solution pH was experimentally studied by varying the agitation speed (50-200 rpm), TiO 2 suspension concentration (0.25-1.71 g/L), initial dye concentration (10-50 ppm), temperature (10-50 deg. C), and UV power intensity (0-96 W). The experimental results show the agitation speed, varying from 50 to 200 rpm, has a slight influence on the dye decomposition rate and the pH history; the dye decomposition rate increases with the TiO 2 suspension concentration up to 0.98 g/L, then decrease with increasing TiO 2 suspension concentration; the initial dye decomposition rate increases with the initial dye concentration up to a certain value depending upon the temperature, then decreases with increasing initial dye concentration; the dye decomposition rate increases with the UV power intensity up to 64 W to reach a plateau. Kinetic models have been developed to fit the experimental kinetic data well

  3. An economic and environmental analysis of biomass-solar hybrid system for the textile industry in India

    OpenAIRE

    MAHADEVAN, MAHALAKSHMI; SALAI, LATHA

    2015-01-01

    This paper focuses on the design and analysis of a hybrid biomass-solar photovoltaic system for the textile industry with the goal of minimizing the cost and greenhouse gas emissions. The feasibility analysis of the hybrid system is performed based on the resource availability and the power generation potential of the existing biomass power plant near the textile plant at T.Kallupatti in Tamil Nadu, India. The power plant located at the site (9.66$^{\\circ}$N, 77.79$^{\\circ}$E) has an averag...

  4. Quirks of dye nomenclature. 5. Rhodamines.

    Science.gov (United States)

    Cooksey, C J

    2016-01-01

    Rhodamines were first produced in the late 19(th) century, when they constituted a new class of synthetic dyes. These compounds since have been used to color many things including cosmetics, inks, textiles, and in some countries, food products. Certain rhodamine dyes also have been used to stain biological specimens and currently are widely used as fluorescent probes for mitochondria in living cells. The early history and current biological applications are sketched briefly and an account of the ambiguities, complications and confusions concerning dye identification and nomenclature are discussed.

  5. The future of textile production in high wage countries

    Science.gov (United States)

    Kemper, M.; Gloy, Y.-S.; Gries, T.

    2017-10-01

    It is undisputed that smart production in the context of industry 4.0 offers significant potential for industrial production in Germany. Exploiting this potential provides an opportunity to meet the growing competitive pressure for textile production in high-wage Germany. The complete cross-linking of textile mills towards Textile Production 4.0 means substantial savings. However, currently there are still some challenges that have to be overcome on the long way to Textile Production 4.0. This paper initially reflects the particular challenges of textile production in high-wage Germany. Later, the vision of the future of smart textile production will be outlined. In addition, first pilot solutions and current research approaches which pave the way for Textile Production 4.0 are described.

  6. A Critical Comparison of Methods for the Analysis of Indigo in Dyeing Liquors and Effluents

    Directory of Open Access Journals (Sweden)

    Valentina Buscio

    2014-08-01

    Full Text Available Indigo is one of the most important dyes in the textile industry. The control of the indigo concentration in dyeing liquors and effluents is an important tool to ensure the reproducibility of the dyed fabrics and also to establish the efficiency of the wastewater treatment. In this work, three analytical methods were studied and validated with the aim to select a reliable, fast and automated method for the indigo dye determination. The first method is based on the extraction of the dye, with chloroform, in its oxidized form. The organic solution is measured by Ultraviolet (UV-visible spectrophotometry at 604 nm. The second method determines the concentration of indigo in its leuco form in aqueous medium by UV-visible spectrophotometry at 407 nm. Finally, in the last method, the concentration of indigo is determined by redox titration with potassium hexacyanoferrate (K3(Fe(CN6. The results indicated that the three methods that we studied met the established acceptance criteria regarding accuracy and precision. However, the third method was considered the most adequate for application on an industrial scale due to its wider work range, which provides a significant advantage over the others.

  7. FINANCIAL MANAGEMENT IN THE FAMILY AND NON-FAMILY SME´S IN THE TEXTILE INDUSTRY IN MEXICO

    OpenAIRE

    Martha Isabel Bojorquez Zapata; Antonio Emmanuel Perez Brito; Jorge Humberto Basulto Triay

    2014-01-01

    In this paper, we analyze differences in financial management practices between family and non-family Small and Medium Enterprises (SMEs) in the textile industry. We hypothesize that family SMEs use different sources of funding for new investments, tend to have less debt, are more profitable and use less financial and accounting information for decision making than non-family SMEs. We survey 24 textile SMEs located in Yucatan, Mexico. The results show that family SMEs rely more heavily on int...

  8. Photostability of low cost dye-sensitized solar cells based on natural and synthetic dyes

    Science.gov (United States)

    Abdou, E. M.; Hafez, H. S.; Bakir, E.; Abdel-Mottaleb, M. S. A.

    2013-11-01

    This paper deals with the use of some natural pigments as well as synthetic dyes to act as sensitizers in dye-sensitized solar cells (DSSCs). Anthocyanin dye extracted from rosella (Hibiscus sabdariffa L.) flowers, the commercially available textile dye Remazole Red RB-133 (RR) and merocyanin-like dye based on 7-methyl coumarin are tested. The photostability of the three dyes is investigated under UV-Vis light exposure. The results show a relatively high stability of the three dyes. Moreover, the photostability of the solid dyes is studied over the TiO2 film electrodes. A very low decolorization rates are recorded as; rate constants k = 1.6, 2.1 and 1.9 × 10-3 min-1 for anthocyanin, RR and coumarin dyes, respectively. The stability results favor selecting anthocyanin as a promising sensitizer candidate in DSSCs based on natural products. Dyes-sensitized solar cells are fabricated and their conversion efficiency (η) is 0.27%, 0.14% and 0.001% for the anthocyanin, RR and coumarin dyes, respectively. Moreover, stability tests of the sealed cells based on anthocyanin and RR dyes are done under continuous light exposure of 100 mW cm-2, reveals highly stable DSSCs.

  9. THE IMPACT OF FX (FOREIGN CURRENCY EXCHANGE) ON THE BOTTOM LINE OF TEXTILE/SHOES INDUSTRIES LISTED IN INDONESIA STOCK EXCHANGE 2006-2008

    OpenAIRE

    Subekti, Hendro

    2015-01-01

    During 2006-2008, Indonesia has been experiencing depreciation of IDR against world currency US$. The situation was triggered by global crisis October 2008, and IDR currency plunged. Furthermore, 17 textile/shoes industries publicly listed in ISX have been severely hit by depreciation of IDR The “Huge Loss of Bottom Line” in 2008 was recorded (IDR 617 billions) more than half of trillion IDR. To be curious the most of industry are manufacturer-exporter.Year 2007, national textile industry ove...

  10. The Integrated Approach for Sustainable Performance Evaluation in Value Chain of Vietnam Textile and Apparel Industry

    Directory of Open Access Journals (Sweden)

    Thi-Nham Le

    2017-03-01

    Full Text Available The impressive growth of the Vietnam textile and apparel industry has led to some concerns due to its insufficient value chain and fierce competition within the industry. Thus, performance evaluation is significant issue to estimate the values of companies over time. Firstly, the grey prediction is used to forecast future data for 20 largest enterprises in six years (2016–2021 based on actual indicators. Then, the paper uses Malmquist productivity index and its decomposition into efficiency and technical change to measure the past productivity growth. Finally, window analysis is applied to significantly detect the trends of performance in 12 years (2010–2021 from large number of inputs and outputs. The results are found that how technology changes is the determinant for productivity growth and undeveloped technology causes a huge barrier to industry. In addition, the results are illustrated that textile companies are predicted to be more stable due to the importance of supplying materials for the entire industry. This paper aims to prove in-depth analysis can be conducted through combined models and also provide some recommendations for enhancing the sustainability performance of the industry.

  11. ISOLASI DAN KARAKTERISASI JAMUR PENDEGRADASI ZAT PEWARNA TEKSTIL (Isolation and Characterization of dye-degrading Fungi

    Directory of Open Access Journals (Sweden)

    Erni Martani

    2011-07-01

    . ABSTRACT The aim of this study was to isolate textile dye degrading fungi from many kinds of sample. Isolation was done using surface plating method on Potato Dextrose Agar medium. Degradation ability was measured based on dye decolorization of agar medium. The selection of isolates was based on ability to decolorize some types of dye, rate of decolorization, and tolerance to dye concentration, respectively. Six kinds dye, namely Basic fuchsin, Crystal violet, Direct blue, Methylene blue, Rhodamine B, and Safranine were used in this study. Six species of lignin degrading white rot fungi were used as positive controls. More than 100 fungal strains could be isolated from waste water and solid wastes of textile and pulp & paper industries, peat soils from Central Kalimantan and Riau, and forest soil. Examination on dye decolorization resulted in 6 selected isolates (coded as JKNT-1, JKSC-1, KRMS 5, TPA-4, TPA-10, and JYGC-1; and 2 species of lignin degrading white rot fungi, namely Phanerochaete chrysosporium and Pleurotus ostreatus. Decolorization of dye was depended on the fungal species and type of dye, i.e. one species decolorized some dyes but not the others. Methylene Blue was decolorized more readily than other dyes. In general, dye decolorization activity of fungal isolates was lower than the lignin degrading fungi. Microscopic examination indicated that the isolates of JKNT 1 and KRMS-5 were come from the genus Penicillium, the genus of JKSC-1 was Stachybotrys, the TPA-4 and JYGC-1 were Cladosporium, and TPA-10 isolate was included in genus of Aspergillus.

  12. Using Eggshell in Acid Orange 2 Dye Removal from Aqueous Solution

    Directory of Open Access Journals (Sweden)

    Ahmad Reza Yari

    2015-05-01

    Full Text Available Background and purpose: Generated dye wastewater by the textile industry is usually toxic, non-biodegradable and resistant in the environment. Eggshell is one of the inexpensive material and for the reason the vesicular structures can be used as a proper adsorbent for pollutants removal. The aim of this study is to investigate the efficiency of eggshell for removal of acid orange 2 dye from aqueous solution. Materials and Methods: In the experimental study was determined the efficacy of variant variables such as contact time (15, 30, 60, 90 and 120 min, pH (3, 7 and 11, adsorbent dose (10, 25, 50 and 75 g/L, and initial dye concentration (25, 50 and 100 mg/L. The concentration of dye by spectrophotometer ultraviolet/visible in the wavelength 483 nm was examined. Results: The results showed that with increasing contact time and adsorbent dose, the dye removal efficiency was increased, but with increasing pH and initial dye concentration the removal efficiency was decreased. The maximum of removal efficiency of acid orange 2 dye got in the optimum pH: 3, contact time: 90 min, adsorbent dose: 50 g/L and initial dye concentration: 25 mg/L. Adsorption of acid orange 2 dye (R2 = 0.87 follow the Freundlich isotherm. Conclusion: Eggshells can be used as an inexpensive and effective adsorbent for the removal of acid orange 2 dye.

  13. [Simultaneous determination of 15 industrial synthetic dyes in condiment by solid phase extraction-high performance liquid chromatography].

    Science.gov (United States)

    Liu, Min; Li, Xiaolin; Bie, Wei; Wang, Minglin; Feng, Qian

    2011-02-01

    A new method was established for the determination of 15 industrial synthetic dyes in condiment by solid phase extraction-high performance liquid chromatography (SPE-HPLC). The samples were extracted by methanol-water (1:1, v/v) and purified by a solid phase extraction column. Then, the chromatographic separation was achieved on a Luna C18 column by linear gradient elution. The mobile phase was 10 mmol/L ammonium acetate-acetonitrile (containing 1% acetic acid). The results showed that the 15 industrial synthetic dyes can be separated efficiently. The recoveries of the 15 industrial synthetic dyes spiked in condiment were between 84.6% and 114.2% with the relative standard deviations of 0.9% - 10.3%. The limits of detection of this method was 0.05 - 0.18 mg/kg for the 15 industrial synthetic dyes. The method is simple, sensitive, accurate, repeatable and can be used for simultaneous determination of the 15 illegally added industrial synthetic dyes.

  14. Spatial pattern of foreign direct investment of China's textile enterprises

    Institute of Scientific and Technical Information of China (English)

    2018-01-01

    China textile industry has achieved encouraging achievements, becoming the primary industry of the integration of investment, production, consumption, employment increase and foreign exchange earnings. On the basis of reviewing studies on foreign direct investment of domestic textile enterprises, this paper come up with the structure analysis framework of spatial strategies of foreign investment of China's textile enterprises with the methods of statistical information, field research and interviews of senior managers. Besides, this paper analyze the spatial distribution and industry choices of foreign direct investment of China's textile enterprises.

  15. Combination of forward osmosis (FO) process with coagulation/flocculation (CF) for potential treatment of textile wastewater.

    Science.gov (United States)

    Han, Gang; Liang, Can-Zeng; Chung, Tai-Shung; Weber, Martin; Staudt, Claudia; Maletzko, Christian

    2016-03-15

    A novel combination of forward osmosis (FO) process with coagulation/flocculation (CF) (FO-CF) has been experimentally conceived for the treatment and reuse of textile wastewater. FO is employed to spontaneously recover water from the wastewater via osmosis and thus effectively reduces its volume with a dramatically enhanced dye concentration. CF is then applied to precipitate and remove dyes from the FO concentrated stream with much improved efficiency and reduced chemical dosage. The FO-CF hybrid system exhibits unique advantages of high water flux and recovery rate, well controlled membrane fouling, high efficiency, and minimal environmental impact. Using a lab-made thin-film composite (TFC) FO membrane, an initial water flux (Jw) of 36.0 L m(-2) h(-1) with a dye rejection of 99.9% has been demonstrated by using 2 M NaCl as the draw solution and synthetic textile wastewater containing multiple textile dyes, inorganic salts and organic additives as the feed under the FO mode. The Jw could be maintained at a high value of 12.0 L m(-2) h(-1) even when the recovery rate of the wastewater reaches 90%. Remarkable reverse fouling behavior has also been observed where the Jw of the fouled membrane can be almost fully restored to the initial value by physical flushing without using any chemicals. Due to the great dye concentration in the FO concentrated wastewater stream, the CF process could achieve more than 95% dye removal with a small dosage of coagulants and flocculants at 500-1000 ppm. The newly developed FO-CF hybrid process may open up new exploration of alternative technologies for the effective treatment and reuse of textile effluents. Copyright © 2016 Elsevier Ltd. All rights reserved.

  16. Funeral dress and textiles in 17th and 19th century burials in Ostrobothnia, Finland

    NARCIS (Netherlands)

    Lipkin, S.; Vajanto, K.; Kallio-Seppä, T.; Kuokkanen, T.; Niinimäki, S.; Väre, T.; van Bommel, M.; Grömer, K.; Pritchard, F.

    2015-01-01

    The 17th-19th-century burial materials from northern Ostrobothnia are studied in order to consider the value, origin and meaning of textiles especially in child burials. The focus is on the preservation, quality and dyes of burial textiles unearthed at the yard of Oulu Cathedral as well as the

  17. Addressing Workers' Rights in the Textile and Apparel Industries: Consequences for the Bangladesh Economy

    NARCIS (Netherlands)

    Ahmed, N.; Peerlings, J.H.M.

    2009-01-01

    This paper applies a CGE model to analyze the effects of better addressing worker¿s rights in Bangladesh¿s textile and apparel industries. Results show that an increased minimum wage for unskilled, low-, and medium-skilled workers has negative impacts for these workers in aggregate and also for the

  18. REMEDIATION OF TEXTILE DYES MIXTURES USING TIO2/VIS PHOTOCATALYSIS AND FENTON FE2+/H2O2

    Directory of Open Access Journals (Sweden)

    P. M. Andrade

    2015-12-01

    Full Text Available This study aimed to use the following treatment technology: TiO2 photocatalysis and Fenton reaction for the remediation of mixture of textile dyes.  For the photocatalytic treatment it was obtained a reduction in color of 80% and Chemical Oxygen Demand of 60% using for this 600 mg L-1 of TiO2, 1500  mL min-1 recirculation flow, temperature 40 oC/45 oC and pH = 6.3 for 60 minutes of treatment. By Fenton reaction it was reached color reduction at 95% and Chemical Oxygen Demand reduction at 75% employing 60 mg L-1 H2O2, 50 mg L-1 de Fe2+ and pH = 4.0 for 62 minutes of treatment.

  19. Optimized treatment conditions for textile wastewater reuse using photocatalytic processes under UV and visible light sources.

    Science.gov (United States)

    Starling, Maria Clara V M; Castro, Luiz Augusto S; Marcelino, Rafaela B P; Leão, Mônica M D; Amorim, Camila C

    2017-03-01

    In this study, photo-Fenton systems using visible light sources with iron and ferrioxalate were tested for the DOC degradation and decolorization of textile wastewater. Textile wastewaters originated after the dyeing stage of dark-colored tissue in the textile industry, and the optimization of treatment processes was studied to produce water suitable for reuse. Dissolved organic carbon, absorbance, turbidity, anionic concentrations, carboxylic acids, and preliminary cost analysis were performed for the proposed treatments. Conventional photo-Fenton process achieved near 99 % DOC degradation rates and complete absorbance removal, and no carboxylic acids were found as products of degradation. Ferrioxalate photo-Fenton system achieved 82 % of DOC degradation and showed complete absorbance removal, and oxalic acid has been detected through HPLC analysis in the treated sample. In contrast, photo-peroxidation with UV light was proved effective only for absorbance removal, with DOC degradation efficiency near 50 %. Treated wastewater was compared with reclaimed water and had a similar quality, indicating that these processes can be effectively applied for textile wastewater reuse. The results of the preliminary cost analysis indicated costs of 0.91 to 1.07 US$ m -3 for the conventional and ferrioxalate photo-Fenton systems, respectively. Graphical Abstract ᅟ.

  20. [Health problems and illness of female workers in textile industries].

    Science.gov (United States)

    Soonthorndhada, K

    1989-07-01

    This paper examines 3 major health-related issues: 1) existing health problems and illnesses resulting from physical environmental conditions at workplaces; 2) female workers' perception on illness and health protection; and 3) the relationship between illness and risk factors. The study area is textile factories in Bangkok and its peripheries. Data are drawn from the 1987 Survey of Occupational Health and Textile Industrial Development in Thailand: Effect on Health and Socioeconomics of Female Migrant Workers. This study shows that about 20% of female workers have ill-health problems and illness after a period of working mainly due to high levels of dust and noise, and inadequate light. These conditions are hazardous to the respiratory system (resulting in cough and chest tightness), the hearing system (pains as well as impaired and hearing loss), eye systems (irritation, reduced visual capacity) and skin allergy. Such illnesses are intensified in the long- run. The analysis of variances reveals that education, section of work, perception (particularly mask and ear plug) significantly affect these illnesses. This study concludes that health education and occupational health should be provided in factories with emphasis on health prevention and promotion.

  1. TEXTILE DYEING AND FINISHING JOURNAL Vol.34,No.1,Jan.2012 Contents and Abstracts%TEXTILE DYEING AND FINISHING JOURNAL Vol.34,No.1,Jan.2012 Contents and Abstracts

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    1 The Hydrophilic Property of Cotton Fabric Modified with Acrylamide by Ultravielet Grafting By Zhijun CHEN, Nianhua HANG, Zehui ZHANG( School of Textile Science and Engineering, Wuhan Textile, University, Wuhan,Hubei) Abstract: Acrylamide(AM) monomers were grafted onto the cotton fabric via ultraviolet(UV) radiation. Fourier Transform Infrared (FTIR), organic element analyzer, and thermogravimetric analysis (TGA) were used to characterize the grafted sample.

  2. The effect of surfactant on pollutant biosorption of Trametes versicolor

    Science.gov (United States)

    Gül, Ülküye Dudu; Silah, Hülya; Akbaş, Halide; Has, Merve

    2016-04-01

    The major problem concerning industrial wastewater is treatment of dye and heavy metal containing effluents. Industrial effluents are also contained surfactants that are used as levelling, dispersing and wetting agents. The purpose of this study was to investigate the effect of surfactant on textile dye biosorption properties of a white rot fungus named Trametes versicolor. Reactive dyes are commonly used in textile industry because of their advantages such as brightness and excellent color fastness. A recative textile dye, called Everzol Black, was used in this study. The low-cost mollasses medium is used for fungal growth. The usage of mollases, the sugar refinery effluent as a source of energy and nutrients, gained importance because of reducing the cost and also reusing another waste. In biosorption process the effect of surfactant on dye removal properties of T. versicolor was examined as a function of pH, dye consentration and surfactant concentration. The results of this study showed that the surfactant enhanced the dye removal capacity of Trametes versicolor. The dye and surfactant molecules were interacted electrostatically and these electrostatic interactions improved dye removal properties of filamentous fungus T. versicolor. The results of this study recommended the use of surfactants as an inducer in textile wastewater treatment technologies.

  3. Research Article Special Issue

    African Journals Online (AJOL)

    2018-01-15

    Jan 15, 2018 ... The textile industries produce large volume of wastewater and ... textile, cosmetics, paper, leather, food and other industries. Textile ..... UV/ZnO and photo-Fenton processes for the organic reactive dye degradation in aqueous.

  4. Graft polymerization using radiation-induced peroxides and application to textile dyeing

    Energy Technology Data Exchange (ETDEWEB)

    Enomoto, Ichiro, E-mail: enomoto.ichiro@iri-tokyo.j [Tokyo Metropolitan Industrial Technology Research Institute, KFC Bldg., 12F, 1-6-1, Yokoami, Sumida-ku, Tokyo 130-0015 (Japan); School of Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Katsumura, Yosuke [School of Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Ibaraki 319-1195 (Japan); Kudo, Hisaaki [School of Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Soeda, Shin [Tokyo Metropolitan Industrial Technology Research Institute, KFC Bldg., 12F, 1-6-1, Yokoami, Sumida-ku, Tokyo 130-0015 (Japan)

    2011-02-15

    To improve the dyeing affinity of ultra high molecular weight polyethylene (UHMWPE) fiber, surface treatment by radiation-induced graft polymerization was performed. Methyl methacrylate (MMA), acrylic acid (AA) and styrene (St) were used as the monomers. The grafting yields as a function of storage time after irradiation were examined. Although the grafting yield of St after the sulfonation processing was quite low compared with those of MMA and AA, it was successfully dyed to a dark color with a cationic dye. Some acid dyes can dye the grafted fiber with AA. The acid dye is distributed to the amorphous domains of the AA grafted fiber. The dyeing concentration depended on the grafting yield, and the higher the grafting yield the darker the dye color.

  5. Graft polymerization using radiation-induced peroxides and application to textile dyeing

    International Nuclear Information System (INIS)

    Enomoto, Ichiro; Katsumura, Yosuke; Kudo, Hisaaki; Soeda, Shin

    2011-01-01

    To improve the dyeing affinity of ultra high molecular weight polyethylene (UHMWPE) fiber, surface treatment by radiation-induced graft polymerization was performed. Methyl methacrylate (MMA), acrylic acid (AA) and styrene (St) were used as the monomers. The grafting yields as a function of storage time after irradiation were examined. Although the grafting yield of St after the sulfonation processing was quite low compared with those of MMA and AA, it was successfully dyed to a dark color with a cationic dye. Some acid dyes can dye the grafted fiber with AA. The acid dye is distributed to the amorphous domains of the AA grafted fiber. The dyeing concentration depended on the grafting yield, and the higher the grafting yield the darker the dye color.

  6. Application of cyclodextrins in textile processes;Aplicacao de ciclodextrinas em processos texteis

    Energy Technology Data Exchange (ETDEWEB)

    Andreaus, Juergen; Dalmolin, Mara C.; Oliveira Junior, Iguatemy B. de; Barcellos, Ivonete O., E-mail: jandr@furb.b [Universidade Regional de Blumenau, SC (Brazil). Dept. de Quimica

    2010-07-01

    Cyclodextrins (CDs) are water soluble cyclic sugars with a hydrophobic nanometric cavity that permits the formation of host/guest inclusion complexes with a large variety of molecules, alternating their physical-chemical properties. In the present review CD research related to the processing of textiles is revised and discussed. CDs may function as encapsulating, dispersing and levelling agents in the dyeing and washing of textiles. Furthermore they may be anchored to polymers and textile fibers in order to impart special properties such as odor reduction, UV protection or for the controlled release of perfumes, aromas, mosquito repellents or substances with therapeutical effects. (author)

  7. A Note on the Dyeing of Wool Fabrics Using Natural Dyes Extracted from Rotten Wood-Inhabiting Fungi

    Directory of Open Access Journals (Sweden)

    Vicente A. Hernández

    2018-02-01

    Full Text Available Fungal isolates obtained from rotten wood samples were identified and selected by their ability to produce fungal dyes in liquid media. Fungal isolates produced natural extracellular dyes with colors ranging from red to orange, yellow and purple. Dyes from two of these fungi, Talaromyces australis (red and Penicillium murcianum (yellow, were extracted and used to dye wool samples in a Data Color Ahiba IR Pro-Trade (model Top Speed II machine. The protein nature of wool interacted well with the fungal dyes producing colors suitable for textile applications when used to a concentration of 0.1 g·L−1. Results on color fastness when washing confirmed the affinity of the dyes with wool as the dyed samples kept their color in acceptable ranges after washing, without the implementation of mordanting pretreatments or the use of fixing agents.

  8. Effectiveness of business strategies in Brazilian textile industry

    OpenAIRE

    Batista, Paulo César de Sousa; Lisboa, João Veríssimo de Oliveira; Augusto, Mário Gomes; Almeida, Fátima Evaneide Barbosa de

    2016-01-01

    ABSTRACT This research analyses how the interaction between strategy capabilities, strategy types, strategy formulation quality and implementation capability affect organizational performance in Brazilian textiles companies. This article proposes and tests a conceptual framework, using a structural equation modeling of a set of 211 valid questionnaires on Brazilian textiles firms. The results support links between focus strategy and marketing capabilities, and between cost leadership strategy...

  9. Organofunctionalized Amazon smectite for dye removal from aqueous medium-Kinetic and thermodynamic adsorption investigations

    Energy Technology Data Exchange (ETDEWEB)

    Guerra, Denis L., E-mail: denis@cpd.ufmt.br [Universidade Federal de Mato Grosso, DRM-UFMT, Mato Grosso, Brasil 78060 900 (Brazil); Silva, Weber L.L. [Universidade Federal de Mato Grosso, DRM-UFMT, Mato Grosso, Brasil 78060 900 (Brazil); Oliveira, Helen C.P. [Universidade Estadual do Norte Fluminense, UENF, Rio de Janeiro, Brasil 28013 602 (Brazil); Viana, Rubia R. [Universidade Federal de Mato Grosso, DRM-UFMT, Mato Grosso, Brasil 78060 900 (Brazil); Airoldi, Claudio [Chemistry Institute, State University of Campinas, P.O. Box 6154, 13084-971 Campinas, Sao Paulo (Brazil)

    2011-02-15

    The objective of this study is to examine the adsorption behavior of Sumifix Brilliant Orange 3R textile dye from aqueous solution on smectite sample, an abundant Amazon clay. The original smectite clay mineral has been collected from Amazon region, Brazil. The compound 2-aminomethylpyridine was anchored onto smectite surface by heterogeneous route. The ability of these materials to remove the Sumifix Brilliant Orange 3R textile dye from aqueous solution was followed by a series of adsorption isotherms, using a batchwise process. The maximum number of moles adsorbed was determined to be 1.26 and 2.07 mmol g{sup -1} for natural and modified clay samples, respectively. The energetic effects caused by dye cations adsorption were determined through calorimetric titrations. Thermodynamics indicated the existence of favorable conditions for such dye-nitrogen interactions.

  10. Organofunctionalized Amazon smectite for dye removal from aqueous medium-Kinetic and thermodynamic adsorption investigations

    International Nuclear Information System (INIS)

    Guerra, Denis L.; Silva, Weber L.L.; Oliveira, Helen C.P.; Viana, Rubia R.; Airoldi, Claudio

    2011-01-01

    The objective of this study is to examine the adsorption behavior of Sumifix Brilliant Orange 3R textile dye from aqueous solution on smectite sample, an abundant Amazon clay. The original smectite clay mineral has been collected from Amazon region, Brazil. The compound 2-aminomethylpyridine was anchored onto smectite surface by heterogeneous route. The ability of these materials to remove the Sumifix Brilliant Orange 3R textile dye from aqueous solution was followed by a series of adsorption isotherms, using a batchwise process. The maximum number of moles adsorbed was determined to be 1.26 and 2.07 mmol g -1 for natural and modified clay samples, respectively. The energetic effects caused by dye cations adsorption were determined through calorimetric titrations. Thermodynamics indicated the existence of favorable conditions for such dye-nitrogen interactions.

  11. THE ROLE AND IMPORTANCE OF THE TEXTILE INDUSTRY IN THE NATIONAL ECONOMY OF THE REPUBLIC OF MACEDONIA: SHARE OF GDP, EXPORTS AND EMPLOYMENT

    Directory of Open Access Journals (Sweden)

    Elena Veselinova

    2013-07-01

    Full Text Available The focus of this paper is the analysis of the role of the textile industry in the national economy of the Republic of Macedonia. The main objective is to consider what determines the actual structure in this particular industry and how it affects the national economic categories, such as: the gross domestic product, exports and the level of employment. The research resultspresent that more than one third of the total exports, as well as more than one third of the employed population in the manufacturing sector accounted for the textile industry, but this industry creates only 3% of the national GDP. Conclusions reveal that the above mentioned statistics is due to the very low level of additional value among all the products that consist this industry’s exports. It is expected that the developed countrieswould tend to keep the creative activities of the manufacturing process in their own terms and transfer the basic production activities in other less developed countries. But the textile companies from the countries in the South-East Europe (among which is the Republic of Macedonia could play the role of a bridge between the modern textile brands and the niche producers in MiddleandFar East.

  12. An integrated (electro- and bio-oxidation) approach for remediation of industrial wastewater containing azo-dyes: Understanding the degradation mechanism and toxicity assessment.

    Science.gov (United States)

    Aravind, Priyadharshini; Selvaraj, Hosimin; Ferro, Sergio; Sundaram, Maruthamuthu

    2016-11-15

    A hybrid approach for the remediation of recalcitrant dye wastewater is proposed. The chlorine-mediated electrochemical oxidation of real textile effluents and synthetic samples (using Ti/IrO2-RuO2-TiO2 anodes), lead to discoloration by 92% and 89%, respectively, in 100min, without significant mineralization. The remediation was obtained through biodegradation, after removing the residual bio-toxic active chlorine species via sunlight exposition. Results show that the electrochemical discoloration enhances the effluent biodegradability with about 90% COD removal employing acclimatized naphthalene-degrading bacterial consortia, within 144h. Based on results obtained through FT-IR and GC-MS, it is likely that azo group stripping and oxidative cleavage of dyes occur due to the nucleophilic attack of active chlorine species during electro-oxidation. This leads to generation of aromatic intermediates which are further desulfonated, deaminated or oxidized only at their functional groups. These aromatic intermediates were mineralized into simpler organic acids and aldehydes by bacterial consortia. Phyto-toxicity trials on Vigna radiata confirmed the toxic nature of the untreated dye solutions. An increase in root and shoot development was observed with the electrochemically treated solutions, the same was higher in case of bio-treated solutions. Overall, obtained results confirm the capability of the proposed hybrid oxidation scheme for the remediation of textile wastewater. Copyright © 2016 Elsevier B.V. All rights reserved.

  13. FACTORS AFFECTING THE REMOVAL OF A BASIC AND AN AZO DYE FROM ARTIFICIAL SOLUTIONS BY ADSORPTION USING ACTIVATED CARBON

    Directory of Open Access Journals (Sweden)

    H Albroomi

    2014-10-01

    Full Text Available Decolourisation of wastewater, particularly from textile industries, is one of the major environmental concerns these days. Current methods for removing dyes from wastewater are costly and cannot effectively be used to treat wide range of such wastewater. This work describes the use of commercial available granular activated carbon (GAC as an efficient adsorbent material for dyes removal. Aqueous solutions of various basic dye Methylene Blue (MB and azo-dye Tartrazine with concentrations 5-20 mg l–1 and 10-100 mg l–1, respectively, were shaken with certain amount of GAC to determine the adsorption capacity and removal efficiencies. The effects of adsorbent dose, initial pH, initial dye concentration, agitation speed and contact time on dyes removal efficiencies have been studied. Maximum dye concentration was removed from the solution within 60-90 min after the beginning of every experiment. Adsorption parameters were found to fit well into Langmuir and Freundlich adsorption isotherms models with correlation coefficient (R2 > 0.99 in the concentration range of MB and TZ studied.

  14. Microbial Biotreatment of Actual Textile Wastewater in a Continuous Sequential Rice Husk Biofilter and the Microbial Community Involved

    OpenAIRE

    Forss, J?rgen; Lindh, Markus V.; Pinhassi, Jarone; Welander, Ulrika

    2017-01-01

    Textile dying processes often pollute wastewater with recalcitrant azo and anthraquinone dyes. Yet, there is little development of effective and affordable degradation systems for textile wastewater applicable in countries where water technologies remain poor. We determined biodegradation of actual textile wastewater in biofilters containing rice husks by spectrophotometry and liquid chromatography mass spectrometry. The indigenous microflora from the rice husks consistently performed >90% de...

  15. The Role of China in the UK Relative Imports from Three Selected Trading Regions: The Case of Textile Raw Material Industry

    Science.gov (United States)

    Xu, Junqian

    2017-01-01

    The UK textile industry was very prosperous in the past but in the 1970s Britain started to import textile materials from abroad. Since 1990, half of its textile materials have been imported from the EEA (European Economic Area), ASEAN (Association of Southeast Asian Nations) and North America countries. Meanwhile, UK imports from China have increased dramatically. Through comparisons, this paper calculates the trade competitiveness index and relative competitive advantages of regions and investigates the impact of Chinese textiles on UK imports from three key free trade regions across the textile sectors in the period 1990–2016 on the basis of United Nation Comtrade Rev. 3. We find that China’s textile prices, product techniques, political trade barriers and even tax system have made a varied impact on the UK’s imports across related sectors in the context of green trade and the strengthening of barriers, which helps us recognize China’s competitiveness in international trading and also provides advice on China’s sustainable development of textile exports. PMID:29189756

  16. Analysis of energetic efficiency in stenters of textile industry; Analise de eficiencia energetica em ramas de industria textil

    Energy Technology Data Exchange (ETDEWEB)

    Machado, Antonio Rogerio; Ferraz, Andre; Rocha, Ivan; Azevedo, Jorge; Oshiro, Hugo K.; Konishi, Ricardo; Piazza, Walter; Lehmkuhl, Willian [Companhia de Gas de Santa Catarina (SCGAS), Florianopolis, SC (Brazil)

    2011-12-21

    This paper presents the research on the use of alternative energy within the textile industry: a strategy aimed at reducing costs and securing market share. The use of natural gas allows for the direct heating and drying of textiles through convection, instead of the conventional indirect heating method of thermal fluids. This measure alone reduces significantly the energy costs and grants the process superior efficiency and sustainability. This case examines the improvements to the process of drying textiles through thermal equipment called stenters, whose purpose is to remove humidity from the cloth during its fabrication. As such, SCGAS, in association with FURB, has performed an operational and technological evaluation of the drying process used by a customer enterprise. The data collected enabled the researchers to map all sources (inputs and outputs) of mass and energy for each different stenter. This composed the basis for the analysis done and the subsequent proposal of improvements, which varied from the conversion of stenter from indirect to direct heating and the development of even more energy efficient solutions for the direct heating system. The data obtained shows that, for the indirect heating system, 28% of the thermal energy produced could be recovered, given the temperature of the exhaust gases reached 360 deg C. The indirect heating stenters presented energy efficiency between 24% and 27%, whiles the direct heating ones presented between 27,4% and 34,8%. Additionally, if an automated control system for the natural gas and oxidizing air flows was to be installed, it would guarantee greater quality combustion with a significant increase in energy efficiency, as well as a decrease in carbon monoxide emissions by a factor of eight. (author)

  17. Feasibility of Genetic Algorithm for Textile Defect Classification Using Neural Network

    OpenAIRE

    Habib, Md. Tarek; Faisal, Rahat Hossain; Rokonuzzaman, M.

    2012-01-01

    The global market for textile industry is highly competitive nowadays. Quality control in production process in textile industry has been a key factor for retaining existence in such competitive market. Automated textile inspection systems are very useful in this respect, because manual inspection is time consuming and not accurate enough. Hence, automated textile inspection systems have been drawing plenty of attention of the researchers of different countries in order to replace...

  18. Apparel and Textiles Production, Management, and Services. Reference Book.

    Science.gov (United States)

    Texas Tech Univ., Lubbock. Home Economics Curriculum Center.

    Developed with input from personnel in the industries, this reference book complements a matching curriculum guide for a course on the textiles and apparel industries. The book emphasizes job skills and the attitudes and interpersonal skills needed for successful employment in the textiles/apparel industry. Each of the 22 chapters of the book…

  19. Sustainable supply chain management implementation-enablers and barriers in the textile industry

    OpenAIRE

    Oelze, Nelly

    2017-01-01

    The distinct definition of accordance in the perceived barriers and enablers for sustainable supply chain management (SSCM) policy implementation has been the subject of various research studies, but a distinct focus on the textile sector has been the object of limited previous attention. However, it has been found that it affects the approach to developments in company approaches to sustainable supply chain management within that industry. This article presents the results of an in-depth com...

  20. Oligopolistic Reaction and Foreign Direct Investment: The Case of the U.S. Tire and Textiles Industries

    OpenAIRE

    Chwo-Ming J Yu; Kiyohiko Ito

    1988-01-01

    This paper empirically tests the impact of oligopolistic reaction and some firm–related and host country–related factors on FDI activities in the U.S. tire and textile industries. The results reveal that in an oligopolistic industry, firms' motivation of FDI is based on the behavior of rivals as well as host country–related and firm–related factors, while in a more competitively structured industry, firms do not actively counter the competitors' FDI activities.© 1988 JIBS. Journal of Internat...

  1. Roadmap to sustainable textiles and clothing regulatory aspects and sustainability standards of textiles and the clothing supply chain

    CERN Document Server

    2015-01-01

    This book covers the elements involved in achieving sustainability in textiles and clothing sector. The chapters covered in three volumes of this series title cover all the distinctive areas earmarked for achieving sustainable development in textiles and clothing industry. This third volume highlights the areas pertaining to the regulatory aspects and sustainability standards applicable to textiles and clothing supply chain. There are various standards earmarked for measuring the environmental impacts and sustainability of textile products. There are also plenty of certification schemes available along with the index systems applicable to textile sector. Brands and manufactures are also venturing into new developments to achieve sustainable development in textile sector. This third volume addresses all these important aspects.

  2. Implementation of a biotechnological process for vat dyeing with woad.

    Science.gov (United States)

    Osimani, Andrea; Aquilanti, Lucia; Baldini, Gessica; Silvestri, Gloria; Butta, Alessandro; Clementi, Francesca

    2012-09-01

    The traditional process for vat dyeing with woad (Isatis tinctoria L.) basically relies on microbial reduction of indigo to its soluble form, leucoindigo, through a complex fermentative process. In the 19th century, cultivation of woad went into decline and use of synthetic indigo dye and chemical reduction agents was established, with a consequent negative impact on the environment due to the release of polluting wastewaters by the synthetic dyeing industry. Recently, the ever-growing demand for environmentally friendly dyeing technologies has led to renewed interest in ecological textile traditions. In this context, this study aims at developing an environmentally friendly biotechnological process for vat dyeing with woad to replace use of polluting chemical reduction agents. Two simple broth media, containing yeast extract or corn steep liquor (CSL), were comparatively evaluated for their capacity to sustain the growth and reducing activity of the strain Clostridium isatidis DSM 15098(T). Subsequently, the dyeing capacity of the CSL medium added with 140 g L⁻¹ of woad powder, providing 2.4 g L⁻¹ of indigo dye, was evaluated after fermentation in laboratory bioreactors under anaerobic or microaerophilic conditions. In all fermentations, a sufficiently negative oxidation/reduction potential for reduction of indigo was reached as early as 24 h and maintained up to the end of the monitoring period. However, clearly faster indigo dye reduction was seen in the broth cultures fermented under strict anaerobiosis, thus suggesting the suitability of the N₂ flushing strategy for enhancement of bacterial-driven indigo reduction.

  3. Effect of ozonation on the biological treatability of a textile mill effluent.

    Science.gov (United States)

    Karahan, O; Dulkadiroglu, H; Kabdasli, I; Sozen, S; Babuna, F Germirli; Orhon, D

    2002-12-01

    Ozonation applied prior to biological processes, has proved to be a very effective chemical treatment step mostly for colour removal when soluble dyes are used in textile finishing operations. Its impact on biological treatability however has not been fully evaluated yet. This study evaluates the effect of ozonation on the quality of wastewater from a textile mill involving bleaching and reactive dyeing of cotton and synthetic knit fabric. The effect of ozonation on COD fractionation and kinetic coefficients defining major biological processes is emphasised. The results indicate that the extent of ozone applied greatly affects the remaining organic carbon composition in the wastewater. The relative magnitude of different COD fractions varies as a function of the ozone dose. Ozonation does not however exert a measurable impact on the rate of major biological processes.

  4. Dyes removal of textile wastewater onto surfactant modified zeolite from coal ash and evaluation of the toxic effects

    International Nuclear Information System (INIS)

    Ferreira, Patricia Cunico

    2015-01-01

    Zeolites synthesized from fly and bottom ashes and modified with hexadecyltrimethylammonium (HDTMA) were used as adsorbent to remove dyes - Solophenyl Navy (SN) and Solophenyl Turquoise (ST) and their hydrolysed forms Solophenyl Navy Hydrolysed (SNH) and Solophenyl Turquoise Hydrolysed (STH), from simulated textile wastewater. The HDTMA-modified fly zeolite (ZMF) and HDTMA-modified bottom zeolite (ZMB) were characterized by different techniques, as X-ray fluorescence spectrometry, X-ray diffraction and scanning electron microscopy, etc. The ZMF and ZMB presented negative charge probably due to the formation of a partial bilayer of HDTMA on exchangeable active sites on the external surface of unmodified zeolite. Initial dye concentration, contact time and equilibrium adsorption were evaluated. The adsorption kinetic for SN, ST, SNH and STH onto the zeolites followed the pseudo second-order model. The equilibrium time was 20 min for SN and ST and 30 min for SNH and STH, respectively. Langmuir, Freundlich and Temkin models were applied to describe the adsorption isotherms. Adsorption of the dyes were best described by the Langmuir model, with exception to SN/ZPM, SNH/ZPM and SNH/ZLM systems that followed Freundlich model. The maximum adsorption capacities were 3,64; 3,57; 2,91 e 4,93 for SN, ST, SNH e STH by ZLM, respectively and 0,235; 0,492; 1,26 e 1,86 by ZPM, in this order. The best performance for hydrolyzed dyes has been attributed to reduction of the size of dyes molecules during the hydrolysis process. Acute toxicity of the dyes to a different organism were evaluated by different test-organisms. Waterflea, Ceriodaphnia dubia showed EC50 value of 1,25; 54,5; 0,78 and 2,56 mgL -1 for SN, ST, SNH and STH, respectively. The plant Lemna minor showed EC50 values of 18,9; 69,4; 10,9 and 70,9 mgL -1 for SN, ST, SNH and STH, respectively. Midges larvae of Chironomus tepperi showed EC50 values of 119 and 440 mgL -1 for SN and ST, respectively. Regarding the adsorption

  5. Combination of physico-chemical analysis, Allium cepa test system and Oreochromis niloticus erythrocyte based comet assay/nuclear abnormalities tests for cyto-genotoxicity assessments of treated effluents discharged from textile industries.

    Science.gov (United States)

    Hemachandra, Chamini K; Pathiratne, Asoka

    2016-09-01

    Bioassays for cyto-genotoxicity assessments are generally not required in current textile industry effluent discharge management regulations. The present study applied in vivo plant and fish based toxicity tests viz. Allium cepa test system and Oreochromis niloticus erythrocyte based comet assay and nuclear abnormalities tests in combination with physico-chemical analysis for assessing potential cytotoxic/genotoxic impacts of treated textile industry effluents reaching a major river (Kelani River) in Sri Lanka. Of the treated effluents tested from two textile industries, color in the Textile industry 1 effluents occasionally and color, biochemical oxygen demand and chemical oxygen demand in the Textile industry 2 effluents frequently exceeded the specified Sri Lankan tolerance limits for discharge of industrial effluents into inland surface waters. Exposure of A. cepa bulbs to 100% and 12.5% treated effluents from both industries resulted in statistically significant root growth retardation, mito-depression, and induction of chromosomal abnormalities in root meristematic cells in comparison to the dilution water in all cases demonstrating cyto-genotoxicity associated with the treated effluents. Exposure of O. niloticus to the 100% and 12.5% effluents, resulted in erythrocytic genetic damage as shown by elevated total comet scores and induction of nuclear abnormalities confirming the genotoxicity of the treated effluents even with 1:8 dilution. The results provide strong scientific evidence for the crucial necessity of incorporating cyto-genotoxicity impact assessment tools in textile industry effluent management regulations considering human health and ecological health of the receiving water course under chronic exposure. Copyright © 2016 Elsevier Inc. All rights reserved.

  6. Current technologies for biological treatment of textile wastewater--a review.

    Science.gov (United States)

    Sarayu, K; Sandhya, S

    2012-06-01

    The release of colored wastewater represents a serious environmental problem and public health concern. Color removal from textile wastewater has become a big challenge over the last decades, and up to now, there is no single and economically attractive treatment method that can effectively decolorize the wastewater. Effluents from textile manufacturing, dyeing, and finishing processes contain high concentrations of biologically difficult-to-degrade or even inert auxiliaries, chemicals like acids, waxes, fats, salts, binders, thickeners, urea, surfactants, reducing agents, etc. The various chemicals such as biocides and stain repellents used for brightening, sequestering, anticreasing, sizing, softening, and wetting of the yarn or fabric are also present in wastewater. Therefore, the textile wastewater needs environmental friendly, effective treatment process. This paper provides a critical review on the current technology available for decolorization and degradation of textile wastewater and also suggests effective and economically attractive alternatives.

  7. Organofunctionalized Amazon smectite for dye removal from aqueous medium--kinetic and thermodynamic adsorption investigations.

    Science.gov (United States)

    Guerra, Denis L; Silva, Weber L L; Oliveira, Helen C P; Viana, Rúbia R; Airoldi, Claudio

    2011-02-15

    The objective of this study is to examine the adsorption behavior of Sumifix Brilliant Orange 3R textile dye from aqueous solution on smectite sample, an abundant Amazon clay. The original smectite clay mineral has been collected from Amazon region, Brazil. The compound 2-aminomethylpyridine was anchored onto smectite surface by heterogeneous route. The ability of these materials to remove the Sumifix Brilliant Orange 3R textile dye from aqueous solution was followed by a series of adsorption isotherms, using a batchwise process. The maximum number of moles adsorbed was determined to be 1.26 and 2.07 mmol g(-1) for natural and modified clay samples, respectively. The energetic effects caused by dye cations adsorption were determined through calorimetric titrations. Thermodynamics indicated the existence of favorable conditions for such dye-nitrogen interactions. Copyright © 2010. Published by Elsevier B.V.

  8. Recent Advances in Soft E-Textiles

    Directory of Open Access Journals (Sweden)

    Kunal Mondal

    2018-04-01

    Full Text Available E-textiles (electronic textiles are fabrics that possesses electronic counterparts and electrical interconnects knitted into them, offering flexibility, stretchability, and a characteristic length scale that cannot be accomplished using other electronic manufacturing methods currently available. However, knitting is only one of the technologies in e-Textile integration. Other technologies, such as sewing, embroidery, and even single fiber-based manufacture technology, are widely employed in next-generation e-textiles. Components and interconnections are barely visible since they are connected intrinsically to soft fabrics that have attracted the attention of those in the fashion and textile industries. These textiles can effortlessly acclimatize themselves to the fast-changing wearable electronic markets with digital, computational, energy storage, and sensing requirements of any specific application. This mini-review focuses on recent advances in the field of e-textiles and focuses particularly on the materials and their functionalities.

  9. Photocatalytic decolorization of methyl orange dye using nano-photocatalysts

    Directory of Open Access Journals (Sweden)

    amin ahmadpour

    2015-10-01

    Full Text Available Environmental contamination, which is growing around the world, is a serious problem can not to be neglected. Among all contaminations, water pollution is a major problem. Azo dyes are one of the largest groups of pollutants found in the drinking water, coming from, and the food and textile industries. TiO2/Fe3O4 and TiO2/Fe2O3 nanocomposites with various ratios were synthesized by an ultrasonic-assisted deposition-precipitation method and their UV-light decolorization of methyl orange (MO dye was investigated. The effect of Fe3O4/TiO2 and Fe2O3-TiO2 nanocomposites ratio on the photocatalytic activity and magnetic property of the nanocomposites was studied by comparing their decolorization curves and magnetism in the presence of magnet, respectively. The results revealed that the decolorization efficiency of 1 wt% Fe3O4/TiO2 nanocomposite reached about 40% within 60 min UV irradiation at room temperature. However, this sample showed the least magnetism. Also, the ability of synthesized nanocomposites in holding the adsorbed methyl orange dye on their surface and the effect of pH were investigated.

  10. Lean six sigma implementation in a yarn textile industry

    Directory of Open Access Journals (Sweden)

    Rayra Rodrigues Nogueira

    2017-06-01

    Full Text Available Due to fierce competition from companies in achieving larger market share, there is an increasing interest regarding cost reduction, efficiency in business and processes, increase in quality and continuous improvement. Given these situations, companies are adopting some practices which seek to improve their strategies, increase understanding of the needs of their customers and promote business growth, the Lean Manufacturing and Six Sigma programs were adopted in order to enable businesses to succeed in achieving continuous improvement in their business. This paper presents a case study of a textile yarn industry which, in order to increase the sales of the business and the elimination of waste, used the methodology of Lean Six Sigma Program based on DMAIC method to assist in achieving these goals.

  11. Nanotechnology in Textiles.

    Science.gov (United States)

    Yetisen, Ali K; Qu, Hang; Manbachi, Amir; Butt, Haider; Dokmeci, Mehmet R; Hinestroza, Juan P; Skorobogatiy, Maksim; Khademhosseini, Ali; Yun, Seok Hyun

    2016-03-22

    Increasing customer demand for durable and functional apparel manufactured in a sustainable manner has created an opportunity for nanomaterials to be integrated into textile substrates. Nanomoieties can induce stain repellence, wrinkle-freeness, static elimination, and electrical conductivity to fibers without compromising their comfort and flexibility. Nanomaterials also offer a wider application potential to create connected garments that can sense and respond to external stimuli via electrical, color, or physiological signals. This review discusses electronic and photonic nanotechnologies that are integrated with textiles and shows their applications in displays, sensing, and drug release within the context of performance, durability, and connectivity. Risk factors including nanotoxicity, nanomaterial release during washing, and environmental impact of nanotextiles based on life cycle assessments have been evaluated. This review also provides an analysis of nanotechnology consolidation in the textiles market to evaluate global trends and patent coverage, supplemented by case studies of commercial products. Perceived limitations of nanotechnology in the textile industry and future directions are identified.

  12. Protease Enzyme Used for Artificial Ageing on Modern Cotton Fabric for Historic Textile Preservation and Restoration

    Directory of Open Access Journals (Sweden)

    Harby E. AHMED

    2013-06-01

    Full Text Available Some of Historical textiles objects in Egyptian museums are containing different types of adhesives from previous restoration processes. Furthermore, they may contain some protein stains such as blood stains, which could involve more damage for the historical textiles. In the context of removing the adhesives by various methods, one may cause damage in the textiles, therefore the biotechnological application of enzymes seems to be a very promising approach in the restoration of historical objects. Our results show that enzyme removing is the most effective method, among all tested methods, in the removing of resistant old adhesives and stains. The tested enzymes for the removing technique solved the problems caused by other traditional removing techniques of resistant old adhesives from museum textiles. The main fibers of the tested objects were cotton fibers dyed with some natural dyes. Thus, the fibers that were used in this study were cotton, dyed with Turmeric dye, madder dye mordanted with alum, CuSO4 or Ferric Citrate, as well as without mordant. Additionally,we studied the effect of the enzyme on the mechanical parameters of fibers (Tensile strength, Elongation, Crystallinity index, by FTIR, XRD and ASTM. Furthermore, the effect of enzymes on the morphology of the surface of the untreated and enzymatically treated dyed fabric was investigated by using SEM and Stereoscopy. The effect of enzymes as a function of enzyme concentration and time of treatment on the fabrics color parameters was extensively studied. There was no impact-destructive effect on cotton fibers after the enzyme treatment. Thus, we could conclude that the enzyme have a very slight effect on cotton fibers dyed with natural dyes.

  13. Socioeconomic impacts of natural gas curtailments: a study of the textile industry in the southeastern United States. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Jennings, D.M.

    1980-01-01

    A study was undertaken to identify the effects of fuel curtailments in the textile industry in North and South Carolina. Regional economic and social structures were affected with natural gas curtailments in 1976 and 1977. This document presents results of the effects of production shutdown resulting from the curtailments. Chapter II presents background information on the pipelines that service the region. Chapters III and IV describe the affected communities and the observed increase in government expenditures to counteract the impacts. Chapter V contains a complete list of textile plants in the study area that had to either work under abbreviated schedules or close entirely during the winter of 1976-1977. Attention was given to economic impacts at the industrial level that may have been attributable to the curtailment. Chapter VI covers these topics. In some instances, textile mills have relocated their plant facilities because they could not be guaranteed continuous fuel service at their original site. These data are the main concern of Chapter VII. Chapter VIII concentrates on social impacts; many facilities which provide services essential to human needs were subjected to gas curtailments so that the critical energy supplies could be diverted to industry. Chapter VIII also discusses an interesting geographic separation between social and economic impacts.

  14. Integrating Substrateless Electrospinning with Textile Technology for Creating Biodegradable Three-Dimensional Structures.

    Science.gov (United States)

    Joseph, John; Nair, Shantikumar V; Menon, Deepthy

    2015-08-12

    The present study describes a unique way of integrating substrateless electrospinning process with textile technology. We developed a new collector design that provided a pressure-driven, localized cotton-wool structure in free space from which continuous high strength yarns were drawn. An advantage of this integration was that the textile could be drug/dye loaded and be developed into a core-sheath architecture with greater functionality. This method could produce potential nanotextiles for various biomedical applications.

  15. An international comparison of productivity change in the textile and clothing industry: a bootstrapped Malmquist index approach

    NARCIS (Netherlands)

    Kapelko, M.; Oude Lansink, A.G.J.M.

    2015-01-01

    Firms in the textile and clothing industry operate in competitive international markets characterized by the liberalized trade after the removal of multi-fiber agreement quotas in 2005, and have to address rapid changes in consumer preferences and production technology. Hence, improving

  16. Decolorization of textile dye RB19 using volcanic rock matrix immobilized Bacillus thuringiensis cells with surface displayed laccase.

    Science.gov (United States)

    Wan, Juan; Sun, Xiaowen; Liu, Cheng; Tang, Mengjun; Li, Lin; Ni, Hong

    2017-06-01

    A triplicate volcanic rock matrix-Bacillus thuringiensis-laccase WlacD (VRMs-Bt-WlacD) dye decolorization system was developed. WlacD was displayed on the B. thuringiensis MB174 cell surface to prepare a whole-cell laccase biocatalyst by using two repeat N-terminal domains of autolysin Mbg (Mbgn) 2 as the anchoring motif. Immunofluorescence microscopic assays confirmed that the fusion protein (Mbgn) 2 -WlacD was anchored on the surface of the recombinant B. thuringiensis MB174. After optimization by a single factor test, L 9 (3 4 )-orthogonal test, Plackett-Burman test, steepest ascent method, and Box-Behnken response surface methodology, the whole-cell specific laccase activity of B. thuringiensis MB174 was improved to 555.2 U L -1 , which was 2.25 times than that of the primary culture condition. Optimized B. thuringiensis MB174 cells were further adsorbed by VRMs to prepare VRMs-Bt-WlacD, an immobilized whole-cell laccase biocatalyst. Decolorization capacity of as-prepared VRMs-Bt-WlacD toward an initial concentration of 500 mg L -1 of an textile dye reactive blue 19 (RB19) aqueous solution reached 72.36% at a solid-to-liquid ratio of 10 g-100 mL. Repeated decolorization-activation operations showed the high decolorization capacity of VRMs-Bt-WlacD and have the potential for large-scale or continuous operations.

  17. Caustic saving potentile in textile processing mills

    International Nuclear Information System (INIS)

    Latif, M.; Rehman, A.; Ghafar, A.; Hafeez, N.M.

    2010-01-01

    The textile processing industry of pakistan has great potential of improvement in resource consumption in various production processes. One major concern is the heavy usage of caustic soda (sodium hydroxide) especially during the mercerization process which incurs a significant cost to a textile processing mill. To reduce the unit fabric production cost and stay competitive, the industry need to minimize the caustic wastage and explore the caustic saving potential. This paper describe the detailed caustic consumption practices and saving potentials in woven textile sector based on the data base of 100 industries. Region wise caustic saving potential is also investigated . Three caustic conservation option including process improvement, reuse and recycling, and caustic recovery plants are discussed. Detailed technical and and financial requirements. saving potentials and paybacks of these options are provided. (author)

  18. Depression and Behavioral Problems Among Adolescent Girls and Young Women Employees of the Textile Industry in India.

    Science.gov (United States)

    Gnanaselvam, Nancy Angeline; Joseph, Bobby

    2018-01-01

    Stress and depression are common in textile industry employees due to inadequate working conditions and challenging socioeconomic conditions. The objective of the study was to assess depression and mental health among adolescent and young females currently employed in a textile factory located in Tamil Nadu compared with past employees and women who have never been employed. This cross-sectional study included a total of 107 participants in each study group who were interviewed. The Patient Health Questionnaire-9 and Strengths and Difficulties Questionnaire were administered to screen participants for depression and mental health. More current employees (16.82%) and past employees (15.88%) suffered from depression severe enough to require treatment compared with never employed girls and young women (2.8%). Of the study participants, 59.8% of current employees, 63.6% of past employees, and 32.7% of never employed women had mental health or behavior problems. In the regression model, history of abuse was significantly associated with depression. Participants who were current employees and reported family debt and a history of abuse were significantly more likely to have mental health or behavior problems. Mental health issues such as depression and behavior problems were more likely among adolescent girls currently employed in textile industries. Further studies into the causes of this phenomenon are needed.

  19. THE DYNAMICS OF THE TEXTILE MARKET. ANALYTICAL REFERENCES

    Directory of Open Access Journals (Sweden)

    Aliona CERNOVA

    2013-12-01

    Full Text Available During the transition to a market economy, the state of many countries’ economies and the international textile industry face considerable challenges. There are many uncertainties surrounding the global textile market, exacerbated by gloomy predictions that for a decade should have been eliminated, resulting in “free” trade flows. There is no doubt that manufacturers which have created niche markets will be better positioned to compete in the global marketplace and achieve higher margins for products while yielding greater profitability. This paper is an introduction of a reasearch that examines how some textile market niches have evolved. The goal of this paper is research and the role that textile niche markets will play by 2025. Specific objectives are: to give a broad overview of various trade theories, including classical, neo-classical, post-neo-classical, and modern, in order to determine what are the possibilities for development and protection. In particular, emphasis will be focused the special problems, due to the vector exchanges and commercial conjuncture, to illustrate how traditional marketing methods differ from market to market and to examine what role will play niche markets in the textiles industry and textile apparel industry in 2050. The results of this research study will help formulate a business strategy that can be used in market capitalization and will provide a framework for research for textile researchers at a global level.

  20. EXPORT-MARKETING PROBLEMS OF SMES: THE CASE OF LUDHIANA APPARELS AND TEXTILE INDUSTRY

    OpenAIRE

    Vohra, Karan

    2008-01-01

    Although, the benefits derived from exporting in an increasingly globalizes marketplace are enormous, but for many small-sized manufacturing firms, the internationalization path is beset by numerous challenges. This research seeks to investigate the perceived level of importance of export-marketing problems and its importance depending on the exporting experience of the firm. In light of certain gaps involving the dearth of major research in the context of Indian Apparel and Textile Industry,...