三阶段厌氧/物化/生化技术处理垃圾渗滤液研究

介绍了生活垃圾渗滤液的三阶段厌氧／物化／生化处理技术。8个月的试运行结果表明，该技术对生活垃圾渗滤液中COD、BOD5、SS、Nn4^＋N、大肠菌群和色度的去除率均在96％以上，第一、二、三阶段对COD和BOD5的去除率分别为89．5％和90．3％、8．7％和8．3％、1．8％和1．4％；在厌氧／物化／生化工序中，生化过程对生活垃圾渗滤液中污染物的去除起到了最主要的净化作用，而处理效果所能达到的最佳程度则依赖于物化、厌氧和水解的综合作用；采用组合式射流曝气器，能够使各阶段中的生化池发挥最佳的功能。

Study on Treatment of Domestic Landfill Leachate by Three-stage Anaerobic, Physicochemical and Biochemical Technology

It was introduced that the three-stage anaerobic,physicochemical and biochemical technology was applied to treat domestic landfill leachate.The results from eight months test show that the removal rates of COD,BOD_5,SS,NH~+_4-N,colibacillus and color are over 96%,in which the removal rates of COD and BOD_5 in the first stage,second stage and third stage are 89.5% and 90.3%,8.7% and 8.3%,1.8% and 1.4%,respectively.In the working procedures,the biochemical process plays a most important role in removing the pollutants.The removal efficiency is dependent on the favorable conditions created by the anaerobic,physicochemical and hydrolytic processes.Every process is able to give the best function using the combined efflux and mixed-flow aerator.