Study on Treatment of Landfill Leachate Aided by Microwave Fenton Process

Microwave is an alternative way for traditional heating method to remove organic pollutants,and it has the advantages of rapidness,high efficiency and no secondary pollution.Microwave assisted Fenton process for the degradation of landfill leachate was investigated.Factors associated with COD removal ratio were studied following dosage of Fenton reagent,microwave power,microwave irradiation time,pH value.Results indicated that microwave can greatly improve the degradation efficiency of landfill leachate and this integrated process reduced the COD concentration.The optimal COD removal condition for 20 mL landfill leachate with 896 mg/L COD were testified following pH value below 3,6 mL FeSO4 at 6 mmol/L,1 mL H2O2,microwave irradiation 800 W for 4 min,and the COD concentration was below 200 mg/L for post-treated landfill leachate.