DAF+CW组合处理中小城镇生活污水  

Down Anaerobic Biofilter and Construct Wetland Process Treating Domestic Sewage in Medium and Small Towns

作　　者：叶亚玲[1] 何成达[1] 谈玲 鲁梦江[1] 

机构地区：[1]扬州大学水利与建筑工程学院环境工程系,江苏扬州225009

出　　处：《污染防治技术》2003年第z1期143-145,共3页Pollution Control Technology

基　　金：江苏省教育厅高校科研基金资助项目:DATB+CW处理乡镇生活污水及资源化研究(02KJFB610040)

摘　　要：阐述了降流式厌氧生物滤池(Down Anaerobic Biofilter)的特点和人工湿地(Constructed Wetland)的去污机理.DAF启动快,不需回流,水力停留时间3 h时,COD容积负荷率为1.12～1.38 kg/(m3·d),COD去除率为60%左右,其后续工艺CW能对COD进一步去除,而且能有效地脱N除P.经DAF+CW组合,出水水质达到GB18918-2002一级A标准,并能回用.The characters of (DAF) and the purification mechanism of constructed wetland (CW) is summarized. DAF is quick starting and backflow is unnecessary. When the volume loading rate ranges from 1.12 kg/(m3·d) to 1.38 kg/(m3·d), the hydraulic retention time is 3 h and the removal efficiency of COD is about 60% . The continuous process of CW can further remove COD and remove biological nitrogen and phosphorus effectively. After the treatment by integrated DAF and CW, the discharged water quality can meet the standards first class type A of GB18918-2002 and be recycled.

关 键 词：降流式厌氧生物滤池 人工湿地 中小城镇 生活污水 回用 

分 类 号：X703[环境科学与工程—环境工程]