Decolorization and degradation of sunset yellow in aqueous solutions by advanced Fenton oxidation
نویسندگان
چکیده
Decolorization of sunset yellow dye (SY) in an aqueous solution was investigated by Fenton reaction using H2O2/Fe 2+ system. Different parameters controlling the degradation efficiency as pH and H2O2 and Fe 2+ concentrations were evaluated. The optimal operational conditions were found to be [Fe] = 2.55x10 mmol, [H2O2] = 0.2425 mmol at pH 2.7. The study of the Kinetics of decolorization indicated that the degradation kinetics of SY followed the second-order kinetics with (K2 = 4.9x10 -4 mgLmin). The results of this study showed high efficiency for removal of SY by Fenton process which is a cheap, versatile and efficient method for removal of this kind of pollutants.
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