Exploration of redox method for effective removal of vinyl sulphone based reactive azo dye

Study depicted here involved the removal of reactive red 195 from synthetic wastewater by some oxidizing and reducing agents involving potassium permanganate (kmno4),hydrogen peroxide (h2o2) ferrioxalate (fe(ox)) and sodium sulphite (na2so3) under various experimental conditions. in order to get maximum removal of dye some operational factors like ph,initial concentration of dye and concentration of oxidizing and reducing agents were varied. results indicated that the efficiency of kmno4,h2o2,fe(ox) and na 2so3 under optimized conditions was 99.31,49.67,52 and 46.15 %,respectively,for removal of dye under study. effectiveness of these redox reagents for the treatment of colored wastewater was also monitored by chemical oxygen demand (cod) and total organic carbon (toc) content. there was decrease in cod and toc values after redox treatment which showed chemical decomposition of complex dye molecule. ft-ir examination of products obtained after treatment under optimized experimental conditions also confirmed the chemical degradation of selected reactive azo dye.