摘要
垃圾渗滤液处理过程中COD居高不下的主要原因是其中含有大量难以生物降解的有机物,难降解有机物主要包括腐殖酸、棕黄酸和氨基酸等。小分子的腐殖质占据了大部分出水COD。物化法成为垃圾渗滤液处理工艺中必不可少的处理方法,介绍了混凝沉淀、膜处理技术、微电解、臭氧氧化、光催化氧化等几种对垃圾渗滤液中难降解物质的有效处理方法。阐述了垃圾渗滤液治理技术的发展方向,小分子难降解有机物的预处理或后续处理将成为研究热点。
The main reason of high COD in the landfill leachate is that it contains a great deal of recalcitrant contaminants .humic acid,fatty acid and amino acid are the main constituents. Physico-chemical treatments has been becoming the indispensable method in landfill leachate technology, in this paper, The emphasis was put on several physico- chemical treatment technologies for removal of recalcitrant contaminants. Development direction of landf＇tll leachate treatment is discussed. The pretreatment and aftertreatment of little recalcitrant contaminants will be the focus.
出处
《水科学与工程技术》
2008年第1期32-35,共4页
Water Sciences and Engineering Technology
关键词
垃圾渗滤液
腐殖质
反渗透
微电解
landfill leachate
humus
reverse osmosis（RO）
micro-electrolysis
