Abstract: In this paper refining wastewater containing phenol was disposed by photo/Fenton/ C2O42- system, the reaction mechanism was discussed and a kinetic equation was set up. The experimental results indicated that photo/Fenton/ C2O42- technology could enhance the removal of phenol by Fenton reagent effectively. When treating 250 mL of wastewater containing 500 mg/L phenol under the conditions of a H2O2 (30%) dosage of 0.5 mL，a Na2C2O4 (1 g/L) dosage of 10 mL, a FeSO4·7H2O dosage of 0.05 g, a pH value of 3, a reaction temperature of 40℃ and a reaction time of 30 min, the phenol removal rate reached more than 98%. And the experimental results indicated that the oxidizing reaction of wastewater containing phenol by Photo/Fenton/C2O42- technology was a first order reaction.

Key words: Fenton reagent, visible light, oxalate, refining wastewater containing phenol