Comparison of various advanced oxidation processes and chemical treatment methods for COD and color removal from a polyester and acetate fiber dyeing effluent


AZBAR N., Yonar T. , Kestioglu K.

CHEMOSPHERE, vol.55, no.1, pp.35-43, 2004 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 55 Issue: 1
  • Publication Date: 2004
  • Doi Number: 10.1016/j.chemosphere.2003.10.046
  • Title of Journal : CHEMOSPHERE
  • Page Numbers: pp.35-43
  • Keywords: textile dyeing, advanced oxidation, UV radiation, ozone, Fenton's reagent, AZO DYES, DEGRADATION, DECOLORIZATION, WATER, OZONATION, REDUCTION

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.