垃圾渗滤液膜过滤浓缩液处理的研究进展

Research progress in the treatment of concentrated solution produced from landfill leachate treated by membrane filtration

填埋是现阶段我国垃圾处理的主要方式,采用填埋法处置垃圾会产生大量的垃圾渗滤液,其是一种成分复杂的高浓度有机废水。近年来,利用以反渗透和纳滤为代表的新型膜分离技术处理垃圾渗滤液在欧美等发达国家和地区得到广泛应用,但在膜分离垃圾渗滤液的过程中会不可避免产生污染性极强的浓缩液,对浓缩液的处理成为一个难题。对当前关于垃圾渗滤液膜过滤浓缩液的处理研究进行了综述。

Landfill is the main way of garbage disposal in China at present stage. The landfill method for garbage disposal can produce lots of garbage leachate. In fact,landfill leachate is a kind of highly concentrated organic wastewater with complicated components. In recent years, a new type of membrane separation technology for garbage disposal,represented by reverse osmosis and nano-filtration,has widely been used in Europe,the USA and other developed countries and regions. However, concentrated solution with very strong toxicity will inevitably be produced in the process of membrane separation of landfill leachate. Therefore,the disposal of concentrated solution has become a problem. The current research on the treatment of concentrated solution by landfill leachat membrane filtration process is summarized.