Advanced treatment of landfill leachate by Fenton oxidation process

In order to remove organic matters that is hard to be biodegraded,Fenton oxidation process was used in the advanced treatment of landfill leachate.The results of the test indicated that,the best reaction condition was:H2O2 and Fe2+ were added separately three times,the mass ratio of H2O2 and Fe2+ was 2 ∶ 1,the concentration of Fe2+ was 0.04 mol/L.When the mass concentration of CODCr of the influent water was 1 521 mg/L,after 3 h of reaction under the optimal condition,the mass concentration of CODCr in the effluent water was 120 mg/L,which met the standard for wastewater discharge.The cost of the Fenton reagent was 6 yuan/t.