Comparison of various advanced oxidation processes and chemical treatment methods for COD and color removal from a polyester and acetate fiber dyeing effluent.
In this paper, a comparison of various advanced oxidation processes (O3, O3/UV, H2O2/UV, O3/H2O2/UV, Fe2+/H2O2) and chemical treatment methods using Al2(SO4)3.18H2O, 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 O3/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.
Azbar
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N
Department of Environmental Engineering, Balikesir University, Muh-Min Fak Cevre Muh Bolumu, Cagis Balikesir 10145, Turkey. nuriazbar@yahoo.com
Yonar
T
T
Kestioglu
K
K
D004396:Coloring Agents / Q000737:chemistry*; D006861:Hydrogen Peroxide; D006863:Hydrogen-Ion Concentration; D007501:Iron; D007700:Kinetics; D010084:Oxidation-Reduction; D010100:Oxygen; D013783:Textile Industry; D014466:Ultraviolet Rays; D018508:Water Purification / Q000379:methods*
D004396:Coloring Agents; D006861:Hydrogen Peroxide; D007501:Iron; D010100:Oxygen