垃圾渗滤液处理工艺技术研究

Research on the Leachate Treatment Technology

垃圾渗滤液是垃圾在填埋处理过程中产生的二次污染物。垃圾渗滤液如产生量过大则渗滤液中氨氮浓度过高,其可生化性差对水体及周边地区环境污染严重。垃圾渗滤液可以污染土壤及水体、大气等;垃圾渗滤液可以使地面水体缺氧、水质恶化和富营养化;垃圾渗滤液直接威胁饮用水和工农业用水水源可使地下水丧失利用价值;垃圾渗滤液有机污染物一旦进入食物链将直接威胁人类健康。但当前由于我国垃圾产量急剧增多,垃圾处理设施一时难以跟上社会的发展,垃圾渗滤液处理难度大,那么如何进行选择高效有利的垃圾渗滤液处理工艺技术并实现其经济有效处理已经成为当下亟待解决的一个工艺技术难题。

The leachate is a secondary pollutant generated in the landfill treatment process. If landfill leachate is too much and its ammonia concentration is too high, the leachate with poor biodegradability will bring serious harm to water body and the surrounding environment. However, waste output in China is increasing sharply, waste treatment facilities are outdated, and so it is difficult to treat the leaehate. Now how to choose efficient favorable landfill leachate treatment technology has become an urgent technical problem.