城市垃圾填埋场渗沥液中氨氮浓度影响因素分析  

Influencing Factors of Ammonia Nitrogen in Waste Leachate from Municipal Waste Landfill Sites

作　　者：夏旦凌 马泽宇[1] 金潇[1] 徐期勇[1] 

机构地区：[1]北京大学深圳研究生院环境与能源学院城市人居环境科学与技术重点实验室,广东深圳518055

出　　处：《环境卫生工程》2013年第6期27-32,共6页Environmental Sanitation Engineering

基　　金：教育部博士点新教师基金项目(20110001120114);深圳市新能源基础研究杰青项目(XNY201110021)

摘　　要：通过调查整理美国国家环保署渗沥液水质数据库中有关渗沥液氨氮的数据,并结合前期研究成果,探讨了填埋垃圾组分、填埋时间及填埋工艺对渗沥液中氨氮浓度的影响。结果表明:垃圾中易降解有机物含量越高,渗沥液氨氮浓度越高;传统卫生填埋场渗沥液中的氨氮浓度呈前期迅速升高、后期缓慢降低的特点。此外,填埋层空气状况对渗沥液氨氮浓度有较大影响,传统卫生填埋及厌氧生物反应器填埋方式下渗沥液氨氮浓度始终处于较高水平,而在好氧/准好氧填埋方式下渗沥液氨氮衰减迅速。According to the data of ammonia nitrogen derived from USEPA Leaching Database and previous researches, the influences of waste composition, landfill age, and landfill technology on ammonia nitrogen in waste leachate were discussed. The results showed that high content of biodegradable organic matters resulted in high concentration of ammonia nitrogen in waste leachate. It had the feature that the concentration of ammonia nitrogen in waste leachate from traditional waste sanitary landfill sites rised rapidly in the early stage and reduced slowly in the later stage. In addition, the air conditions in landfill layer could have a great effect on the concentration of ammonia nitrogen in waste leachate. The concentration of ammonia nitrogen in leaehate from traditional sanitary landfill and anaerobic bioreactor was always at a high level, and the concentration of ammonia nitrogen in leachate from aerobic or auasi-aerobic landfill attenuated ranidlv.

关 键 词：氨氮 渗沥液数据库 垃圾组分 填埋时间 填埋工艺 

分 类 号：X703[环境科学与工程—环境工程]