Studies on Advance Oxidation Processes for Treatment of Dye Effluent

Abstract

Textile industry generates highly polluting wastewater which contains dyes and their decomposition is creating very serious problem to wastewater treatment plant. High color, TDS, toxic metals are present in textile effluents which have been responsible for decrease the capacity of self-degradation of pollutants in wastewater. Degradation of dyes from textile effluent is very tricky because of complex structure and recalcitrant nature of dyes. Advance oxidation processes (AOPs) has great potential to degrade the dyes than conventional methods and it has proved itself as a promising alternative to conventional technique to remove the dyes from textile effluents. In this study the Reactive Read 120 dye was used and the dye degradation was observed by three methods which are Ozonation, Ozone/ UV, Ozone/ UV/ Persulfate in which efficiency was measured in terms of Color removal and Total Organic Carbon removal, for different different pH and different flow rate of ozone in different reactors which were: Bubble Column reactor and Venturi Injector. Finally Ozone/ UV/ Persulfate> Ozone/ UV> Ozonation was observed.