BAF净化尿素废水的启动特性研究  

Experimental Study on Start-up of BAF Used to Treat Ureacontaining Wastewater

作　　者：闫立龙[1] 张颖[1] 任源[2] 李伟光[2] 

机构地区：[1]东北农业大学资源环境学院,黑龙江哈尔滨150030 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《环境科学与技术》2009年第9期173-176,共4页Environmental Science & Technology

基　　金：东北农业大学博士启动基金(08-10);黑龙江省博士后基金(LBH-Z08262);哈尔滨科技创新人才专项(2007RFLXN005)

摘　　要：文章以曝气生物滤池(Biological Aerated Filter,BAF)净化尿素废水为研究对象,考察了曝气方式、载体特性及运行方式对BAF启动特性的影响。试验结果表明,预曝气方式对加快BAF启动进程有利,但以预曝气运行3～4d为宜;作为BAF的载体,活性炭较陶粒更有利于BAF的启动,只需运行4d,前者对尿素去除率便可稳定在75%以上,且表现出较强的抗冲击负荷能力;相比于低滤速启动运行,高滤速(2.8m/h)运行方式能够加快BAF启动进程。A bench scale experimental biological aerated filter （BAF） was erected, with which urea-containing wastewater was treated. The study focuses on the factors affecting BAF start-up such as aeration method, carder media＇s characteristics and operation mode. Result shows that pre-aeration facilitates start-up and activated carbon is better than ceramic beads as carder media with shorter start-up time and stable removal of urea（around 75%）. In addition, higher filter velocity can accelerate BAF start-up.

关 键 词：曝气生物滤池 尿素 启动 污水处理 

分 类 号：X703[环境科学与工程—环境工程]