生态滤池处理城市污水小试研究  

Test research on microbial-earthworm ecofilter system for municipal sewage treatment

作　　者：韩润平[1] 张宗培[1] 石杰[1] 刘宏民[1] 杨健[2] 陆雍森[2] 

机构地区：[1]郑州大学化学系,郑州450052 [2]同济大学环境科学与工程学院,上海200092

出　　处：《环境污染治理技术与设备》2005年第7期58-62,共5页Techniques and Equipment for Environmental Pollution Control

基　　金：科技部中法合作项目资助(E9804);河南省科技攻关资助项目(0424290065)

摘　　要：生态滤池(MEEF)是利用由微生物和蚯蚓为代表的微型动物共同组成的人工生态系统,对城镇污水中的污染物进行降解处理的新型污水处理技术。采用单层滤池和复合床滤池进行实验,在相同的实验条件下,对生态滤池和无蚯蚓滤池的运行效果进行了比较。运行初期,生态滤池的出水水质稍优于无蚯蚓滤池,特别是悬浮物浓度低;运行半月后,无蚯蚓滤池表面积泥,出现厌氧情况,出水水质变差,而生态滤池至少正常运行1个月。复合床生态滤池连续进水运行,水力负荷达到2.0m3/m2·d,COD去除率达80%以上,出水SS浓度<5mg/L。结果表明,蚯蚓在维持滤池的正常运行起着重要作用。最后介绍了生态滤池中各种生物的作用及生态滤池的工作原理。Microbial-earthworm ecofiher system（MEEF） with combination of microbe and earthworm as representative of micro-faunal to form artificial ecosystem is a new wastewater treatment technique to degrade pollutants for municipal sewage treatment. The filters, composed by simple layer of material deprived plant or double layer from material deprived plant and inert particle material, are employed in the trial experiments for comparison. During the first 10 days, the quality of the effluent from MEEF is a bit better than that of common filter, and SS is less than 5 mg/L. After operating for 15 days, sludge is accumulated in the common filter bed surface and the quality of the effluent from common filter is turbidity. For MEEF, the quality is steady at one month. MMEEF is better than SMEEF because MMEEF is in a continue-flow state and the hydraulic load rate is up to 2.0 m^3/m^2· d. The removal rate of COD is over 80%. The earthworms play an essential role for MEEF performance.

关 键 词：生态滤池 蚯蚓 污水处理 

分 类 号：X703[环境科学与工程—环境工程]