新型脱氮生物反应器填埋场的启动特性研究  

Study on the Startup Characteristics of the New-style Nitrogen Removal Landfill Bioreactor

作　　者：刘海春[1] 沈东升[2] 龙焰[2] 于现荣[2] 

机构地区：[1]扬州环境职业技术学院,扬州225127 [2]浙江大学环境与资源学院,杭州310029

出　　处：《科技通报》2007年第5期747-750,754,共5页Bulletin of Science and Technology

基　　金：国家自然科学基金资助项目(No.50478083);浙江省科技计划重项目(No.2006C23071);杭州市科技发展计划(No.20061123B09)

摘　　要：根据生活垃圾填埋场中存在厌氧、兼氧及好氧环境区域的特点和硝化反硝化的生物脱氮理论,构建了一种新型的具有脱氮功能的生物反应器填埋场。对新型脱氮生物反应器填埋场启动特性研究表明,通过48 d的启动运行,产甲烷生物反应器M1,M2对进水COD去除率已稳定在80%以上;硝化反应器N出水COD去除率、NH+4-N去除率均达到80%以上,硝化细菌的数量已达2.39×105(个.g.干垃圾-1)。这将有助于后续稳定运行阶段新型脱氮生物反应器填埋场对垃圾的降解,实现垃圾脱碳、脱氮的目的。A new-type nitrogen removal bioreactor landfill was setup based on the MSW landfill characteristics that anaerobic,facultative anaerobic and aerobic areas can coexist as well as the nitration and anti-nitration theory.It was shown that after the 48-day startup experiment, the COD removal rate of the inlet leachate in the methane-producing bioreactor （Ml and M2） was stabilized at 80%; the removal rates of COD and NH^＋4-N of the outlet leachate by nitrifying-bioreactor（N） were both higher than 80% and the nitrifying bacteria has amounted to 2.39×10^5 in per gram dry waste. These would contribute to the degradation and the removal of both carbon and nitrogen of MSW in the following stable operation.

关 键 词：生物反应器 填埋场 渗滤液 产甲烷 硝化 脱氮 

分 类 号：X799.3[环境科学与工程—环境工程]