Study on Modified Fenton Reagent in Processing Phenol Wastewater

Objectives To improve the removal rate of phenol in the wastewater.

Methods The ordinary Fenton reagent and the modified Fenton reagent(nano Fe₃O₄/H₂O₂ system) were used separately to process simulated phenol wastewater, to find the best reaction parameters and comparing the processing results of the two kinds of reagents.

Results The modified Fenton reagent in simulated phenol wastewater can eliminate (91.80 ±1.64)% COD when nanoFe₃O₄ and H₂O₂ were put in the reaction system with the proportion of m(COD):m(H₂O₂)=1:3, n(Feⁿ⁺):n(H₂O₂)=1:5 and pH=3 after stirring 60 min. But ordinary Fenton reagent's COD elimination rate is(81.31±1.83)% in the same condition.

Conclusions The treatment effect of modified Fenton reagent is better than ordinary Fenton reagent in processing wastewater containing phenol.