Investigation of water decolorization by Fenton oxidation process in batch and continuous systems

Abstract

AbstractNowadays, advanced oxidation methods such as Fenton and modified Fenton processes draw considerable attention to dye removal in textile wastewater. In Fenton process, low concentrations of Fe+2 and H2O2 solutions are used and these Fenton reagents generate radicals including high oxidation potential. The Fenton process, in which non-toxic and harmless reagents are applied at low concentrations, is very useful for decolorization of wastewater since it is very effective and less polluting. In this study, decolorization of the water samples containing azo dyes like Acid Red 88 (AR 88) was performed by Fenton oxidation process on a laboratory-scale setup. The aqueous solutions prepared by AR 88 dye were used for effective decolorization by Fenton oxidation method in batch process under various reaction conditions. By this method, the effects of solution temperature, pH, stirring speed, and concentration on the decolorization of the samples were investigated. The decolorization reaction kinetics of AR ...