Study on the Treatment of Effluents from Paint Industry by Modified Electro-Fenton Process

摘要

The main goal of this study is to investigate the effectiveness of modified Electro-Fenton process (EF-Fere) involving ferrous ions regeneration coupled with direct oxidation method on COD reduction of paint manufacturing wastewater. The present Electro-Fenton cell consisted of stainless steel porous cathode and lead anode covered by PbOsub2/sub film. The performance was measured through studying the effect of different parameters on the percentage of COD removal such as: ferric ions concentration, initial concentration of wastewater, current density and irradiation of UV light. The parameters showed high COD removal efficiency 99% for highly contaminated wastewater of 13000 mg/l COD in acidic medium pH=2 at continuous Hsub2/subOsub2/sub feeding dosage of 1.4 ml/min and current density = 19 mA/cmsup2/sup in presence of UV light.