Comparison of various advanced oxidation processes and chemical treatment methods for COD and color removal from a polyester and acetate fiber dyeing effluent
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Date
2004-04
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Pergamon-Elsevier Science Ltd.
Abstract
In this paper, a comparison of various advanced oxidation processes (O-3, O-3/UV, H2O2/UV, O-3/H2O2/UV, Fe2+/H2O2) and chemical treatment methods using Al-2(SO4)(3)(.)18H(2)O, FeCl3 and FeSO4 for the chemical oxygen demand (COD) and color removal from a polyester and acetate fiber dyeing effluent is undertaken. Advanced oxidation processes (AOPs) showed a superior performance compared to conventional chemical treatment, which maximum achievable color and COD removal for the textile effluent used in this study was 50% and 60%, respectively. Although O-3/H2O2/UV combination among other AOPs methods studied in this paper was found to give the best result (99% removal for COD and 96% removal for color), use of Fe2+/H2O2 seems to show a satisfactory COD and color removal performance and to be economically more viable choice for the acetate and polyester fiber dyeing effluent on the basis of 90% removal. (C) 2003 Elsevier Ltd. All rights reserved.
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Keywords
Textile dyeing, Advanced oxidation, UV radiation, Ozone, Fenton's reagent, Azo dyes, Degradation, Decolorization, Water, Ozonation, Reduction, Environmental sciences & ecology
Citation
Azbar, N. vd. (2004). “Comparison of various advanced oxidation processes and chemical treatment methods for COD and color removal from a polyester and acetate fiber dyeing effluent”. Chemosphere, 55(1), 35-43.