微波催化氧化法处理垃圾渗滤液的正交试验

Orthogonal experiment on treatment of landfill leachate by catalytic oxidation under microwave radiation

在微波辐射条件下,采用活性炭与Fenton试剂处理垃圾渗滤液,并通过正交试验考察了微波辐射时间、pH、活性炭用量、硫酸亚铁用量和H2O2用量对处理效果的影响。结果表明:pH对处理效果的影响最大,其次为活性炭用量、微波辐射时间、硫酸亚铁用量和H2O2用量;在100mL水样中,最佳处理条件为活性炭2g、H2O20.2mL、硫酸亚铁0.834g、pH6、微波辐射时间10min,垃圾渗滤液中的COD去除率达到75.36%。

Landfill leachate was treated by activated carbon and Fenton agent in the presence of microwave radiation. The microwave radiation time, pH, dosage of activated carbon, dosage of FeSO4 and H2O2 on removal rate were studied through orthogonal experiment. The result showed that pH influenced most greatly on the removal rate, following activated carbon dosage, microwave radiation time, dosage of FeSO4, dosage of H2O2. The optimal removal conditions for 100 mL landfill leachate were activated carbon dosage 2.0 g, H2O2 0.2 mL, FeSO4 0.834 g, pH 6, and microwave radiation time 10 min, the COD in the landfill leachate was decreased by 75.36%.