%0 Journal Article
%T Study of earthworm ecology filter for rural sewage purification<br>蚯蚓生态滤池对农村生活污水的深度净化效果
%A Guo Feihong
%A Wang Longmian
%A Zhang Jibiao
%A Zheng Zheng
%A <br>郭飞宏
%A 汪龙眠
%A 张继彪
%A 郑正
%J 环境工程学报
%D 2012
%I 
%X In this study,multi-stage earthworm ecology filter was used for sewage treatment in rural areas.The removal efficiencies of COD,TN,NH+4-N,TP and analyst microbial communities by PCR-DGGE in different seasons were investigated.The results showed that removal efficiencies(COD,TN,NH+4-N and TP) reached 86.05%,89.02%,98.48% and 99.1% in summer and 83.29%,93.26%,96.96% and 92.7% in winter.The effluent concentrations of COD,TN,NH+4-N and TP were 17.86 mg/L,4.96 mg/L,0.605 mg/L,0.047 mg/L and 22.68 mg/L,2.63 mg/L,1.02 mg/L and 0.37 mg/L in the two different seasons,which met the need of "Urban Sewage Treatment Plant Pollutant Discharge Standard"(GB18918-2002) Class A.Microbial diversity in winter was richer than that in summer and species increased gradually from top to bottom,because of the same change of pollutant removal efficiency.
%K earthworm ecology filter
%K sewage
%K season
%K microorganism
%K removal rate
%K effluent<br>蚯蚓生态滤池
%K 生活污水
%K 季节
%K 微生物
%K 去除率
%K 出水
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=4B593C892672BD8CB7DC465F3811707C&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=38B194292C032A66&sid=C4B91B15F1F73E7E&eid=5A027C8E6C570AAB&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=0