Study on treatment of Eosin B by the photo-Fenton processes in different ionic solutions

UV/Fenton Catalyst system was used to treat Eosin B in simulated dye wastewater developed here.Studies showed that when the initial concentration was 50mg/L,at 25℃,the best condition was that pH=4.5 =0.54mol/L /≈1/29(Mol ratio) t=100min.Under this optimized condition,the decolorization rate was 99.7% above.The initial concentration of Eosin B and different effect of cation and anion on its decolorization were studied.Finally,comparing before and after UV spectrum,the results showed that the degradation of Eosin B was completed.