中文摘要：

采用微滤膜对老港填埋场新鲜渗滤液、实验室好氧曝气后调节池渗滤液和好氧塘出水进行了梯度分离，研究了各种渗滤液COD、氨氮和pH变化趋势与不同孔径膜之间的关系，结果表明：不同来源渗滤液的COD、氨氮随系列膜过滤进行而逐渐减少．但减少幅度并不一样，pH则最大可增加0.4pH单位.

英文摘要：

The fresh leaehate, leaehate in holding tank after aerobic treatmen and leaehate effluent in aerobic tank at Laogang landfill yeere separated gradient by MF membrane in this study, and the relationship between the variation trend of COD, NH3-N and pH were estabilished. It was fnund that COD, NH3-N in leaehate decreased slightly after filtered by the MF membrane, and the removal rate in different type leachate was different, while pH increased, with the maximum value of about 0.4 pH.