灰渣填埋场渗滤液处理技术研究

垃圾渗滤液,又称渗沥水或浸出液,是指垃圾在堆放和填埋过程中由于发酵和雨水的淋浴,冲刷,以及地表水和地下水的浸泡而滤出来的污水。垃圾填埋场渗滤液是一种高浓度有机废水,其化学特性与填埋场废物成分、填埋方式、填埋龄以及填埋场环境条件等密切相关,一般评价渗滤液的指标包括:COD Cr、BOD5、SS、总氮、氨氮、重金属等,主要污染物为溶解性有机物、氨氮,无机盐类物质含量较高,一般都极难处理而且会对周围环境造成严重的影响,特别是渗入到地下影响地下水,对周围的居民和植物的生存有很大的影响,渗出的渗滤液味道十分难闻也会产生沼气,影响大气环境。因此渗滤液的处理是城市垃圾填埋场正常运行的必不可少的环节之一。本次课题通过实验对渗滤液进行不同技术路线处理,探索渗滤液的有效方法。

Research ash landfill leachate treatment technology

Landfill leachate,also known as the percolating water or leachate,refers to garbage piling up in landfills and due process of fermentation and rain shower,washed,soaked in water and surface and groundwater and filter out of the water.Landfill leachate is a high concentration organic wastewater,which is closely related to the chemical characteristics of landfill waste composition,landfill,landfill age and environmental conditions such as landfill,leachate general evaluation indicators include:CODcr,BOD5,SS,total nitrogen,ammonia nitrogen,heavy metals and other pollutants are mainly dissolved organic matter,ammonia,higher material content of inorganic salts,and are generally very difficult to deal with a serious impact on the surrounding environment,particularly infiltration the impact of groundwater into the ground,have a great impact on the residents living around the plant and,leaking leachate taste is very unpleasant will produce biogas,the effect of atmospheric environment.So leachate treatment is one part of the normal operation of municipal landfills essential.In this project,different technical routes for the leachate were processed through experiments to explore effective methods of leachate.