Review: Treatment and reuse of wastewater from the textile wet‐processing industry: review of emerging technologies

Vandevivere, Philippe; Bianchi, R.; Verstraete, Willy

doi:10.1002/(sici)1097-4660(199808)72:4<289::aid-jctb905>3.3.co;2-r

Cited by 163 publications

(194 citation statements)

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“…Since discharge of colored wastewater adversely affects aquatic life, much attention has been focused on the effective treatment of dyes discharged from the dying and textile industries. Many different chemical, physical and biological techniques have been studied to remove dyes from wastewaters [3][4][5][6][7][8][9]. Biological methods are commonly considered to be the most effective treatment applications, since they present lower operating costs and improved applicability [10,11].…”

Section: Introductionmentioning

confidence: 99%

The effect of cyclic anaerobic–aerobic conditions on biodegradation of azo dyes

Semra

Cırık

Çınar

2011

Bioprocess Biosyst Eng

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The effect of cyclic anaerobic-aerobic conditions on the biodegradative capability of the mixed microbial culture for the azo dye Remazol Brilliant Violet 5R (RBV-5R) was investigated in the sequencing batch reactor (SBR) fed with a synthetic textile wastewater. The SBR had a 12-h cycle time with anaerobic-aerobic periods of 3/9, 6/6 and 9/3 h. General SBR performance was assessed by measurement of catabolic enzymes (catechol 2,3-dioxygenase, azo reductase), chemical oxygen demand (COD), color and amount of aromatic amines. In this study, under steady-state conditions, the anaerobic period of the cyclic SBR was found to allow the reductive decolorization of azo dye. Longer anaerobic periods resulted in higher color removal efficiencies, approximately 71% for the 3-h, 87% for 6-h and 92% for the 9-h duration. Total COD removal efficiencies were over 84% under each of the cyclic conditions and increased as the length of the anaerobic period was increased; however, the highest color removal rate was attained for the cycle with the shortest anaerobic period of 3 h. During the decolorization of RBV-5R, two sulfonated aromatic amines (benzene based and naphthalene based) were formed. Additionally, anaerobic azo reductase enzyme was found to be positively affected with the increasing duration of the anaerobic period; however; it was vice versa for the aerobic catechol 2,3-dioxygenase (C23DO) enzyme.

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Section: Introductionmentioning

confidence: 99%

The effect of cyclic anaerobic–aerobic conditions on biodegradation of azo dyes

Semra

Cırık

Çınar

2011

Bioprocess Biosyst Eng

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“…Reactive dyes are both highly water soluble due to a high degree of sulfonation, and non-degradable under the typical aerobic conditions found in conventional, biological treatment systems (Beydilli et al 2000;Hao et al 2000;Kalyuzhnyi & Sklyar 2000;Pagga & Brown 1986;Pagga & Taeger 1994;Pearce et al 2003;Vandevivere et al 1998). Additionally, reactive dyes adsorb very poorly to biological solids, resulting in residual color in discharged effluents, and creating major aesthetic problems (Pagga & Taeger 1994;Pierce 1994).…”

Section: Introductionmentioning

confidence: 99%

Decolorization kinetics of the azo dye Reactive Red 2 under methanogenic conditions: effect of long-term culture acclimation

Beydilli

Pavlostathis

2005

Biodegradation

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The biological decolorization of the textile azo dye Reactive Red 2 was investigated using a mixed, mesophilic methanogenic culture, which was developed with mixed liquor obtained from a mesophilic, municipal anaerobic digester and enriched by feeding a mixture of dextrin/peptone as well as media containing salts, trace metals and vitamins. Batch decolorization assays were conducted with the unacclimated methanogenic culture and dye decolorization kinetics were determined as a function of initial dye, biomass, and carbon source concentrations. Dye decolorization was inhibited at initial dye concentrations higher than 100 mg l(-1) and decolorization kinetics were described based on the Haldane model. The effect of long-term culture exposure to the reactive dye on decolorization kinetics, culture acclimation, as well as possible dye mineralization was tested using two reactors fed weekly for two years with an initial dye concentration of 300 mg l(-1) and a mixture of dextrin/peptone. The maximum dye decolorization rate after a 2-year acclimation at an initial dye concentration of 300 mg l(-1) was more than 10-fold higher as compared to that obtained with the unacclimated culture. Aniline and the o-aminohydroxynaphthalene derivative resulting from the reductive azo bond cleavage of the dye were detected, but further transformation(s) leading to dye mineralization were not observed. Reactive Red 2 did not serve as the carbon and energy source for the mixed culture, and dye decolorization was sustained by the continuous addition of dextrin and peptone. Thus, biological decolorization of reactive azo dyes is feasible under conditions of low redox potential created and maintained in overall methanogenic systems, but supply of a biodegradable carbon source is necessary.

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“…A range of conventional treatment technologies for dye removal has been investigated extensively (Chu and Tsui 1999;Ganesh et al 1994;Lin and Lin 1993;Vandevivere et al 1998;Walker and Weatherley 1997) such as the trickling filter, activated sludge, chemical coagulation, carbon adsorption and photodegradation processes. Adsorption can handle fairly large flowrates, producing a high quality effluent and does not result in the formation of harmful substances, such as ozone and free radicals during the photodegradation process using UV.…”

mentioning

confidence: 99%

Effect of temperature, particle size and percentage deacetylation on the adsorption of acid dyes on chitosan

et al. 2007

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The adsorption of five acidic dyes on chitosan-a by-product from waste crustacean shell-has been studied. The equilibrium data have been studied using Langmuir, Freundlich and Redlich-Peterson equations. The best correlations are obtained using the Langmuir isotherm suggesting the mechanism involves one process step of dyes complexing with the free amino group. The effect of chitosan particle size was investigated and showed an increase in adsorption capacity with decreasing particle size indicating that the available external surface was an important factor. Increasing solution temperature resulted in an increase in adsorption capacity indicating an exothermic process with a negative H. Finally, the effect of varying the percentage degree of deacetylation showed that from 52% to 97% resulted in decrease in the dye adsorption capacity suggesting that more amorphisation may cause changes in the internal structure of chitosan and reduce the capacity.

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Review: Treatment and reuse of wastewater from the textile wet‐processing industry: review of emerging technologies

Cited by 163 publications

References 0 publications

The effect of cyclic anaerobic–aerobic conditions on biodegradation of azo dyes

The effect of cyclic anaerobic–aerobic conditions on biodegradation of azo dyes

Decolorization kinetics of the azo dye Reactive Red 2 under methanogenic conditions: effect of long-term culture acclimation

Effect of temperature, particle size and percentage deacetylation on the adsorption of acid dyes on chitosan

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