KINETICS OF AN AZO DYE DECOLOURIZATION USING UV/H2O2 TECHNIQUE

Abstract: Advanced oxidation process using UV/H2O2 was used to remove CI Reactive Red 195A from textile wastewater. UV radiation source was a low-pressure mercury arc lamp, 60W emitting at 253.7nm. In this work, the effects of initial hydrogen peroxide dosage, dye concentration, pH and temperature were examined to study the kinetics of dye decolourisation through UV/H2O2 process. The aim is to find the optimum treatment conditions for practical applications of dye removal from wastewater and to obtain information relevant for the possible scale-up of the degradation process. In general, the result demonstrates that the decolourization reaction was found to follow first order kinetics with respect to the dye concentration. Keywords: Azo-dye, Decolourization, Kinetics, Textile, UV/H2O