TREATMENT OF OILY WASTEWATER VIA FENTON OXIDATION UNITED WITH COAGULATION

摘要

This work investigated the degradation of oily wastewater via Fenton process. The effects of H2O2 dosage, Fe2+ dosage and reaction time on chemical oxygen demand (COD) removal are investigated during the oxidation and coagulation processes. The results show that the COD removal reached 53.9% under the optimum condition: H2O2 dosage of 170 mmol/l, Fe2+ dosage of 30 mmol/l and reaction time of 150 min, under which 46.2% COD was removed via oxidation process and 7.7% COD was removed via coagulation process.