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  • 郭飞宏,汪龙眠,张继彪,郑正.蚯蚓生态滤池对农村生活污水的深度净化效果[J].环境工程学报,2012,6(3):714-718.DOI:    [点击复制]
  • Guo Feihong,Wang Longmian,Zhang Jibiao,Zheng Zheng.Study of earthworm ecology filter for rural sewage purification[J].,2012,6(3):714-718.DOI:   [点击复制]
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蚯蚓生态滤池对农村生活污水的深度净化效果
郭飞宏1, 汪龙眠1, 张继彪2, 郑正2
0
(1.南京大学环境学院污染控制与资源化研究国家重点实验室,南京 210093;2.复旦大学环境科学与工程系,上海 200433)
摘要:
本实验利用多级蚯蚓生态滤池对农村生活污水进行处理研究,分别考察了不同季节蚯蚓生态滤池对COD、TN、NH+4-N和TP的去除效果,同时利用PCR-DGGE技术对不同季节的微生物群落进行初步分析。结果表明,夏季COD、TN、NH+4-N和TP的平均去除率分别达到86.05%、89.02%、98.48%和99.1%;出水浓度17.86、4.96、0.605和0.047 mg/L。冬季COD、TN、NH+4-N和TP的平均去除率分别达到83.29%、93.26%、96.96%和92.7%;出水浓度22.68、2.63、1.02和0.37 mg/L。不同季节出水水质均达到了《城镇污水处理厂污染物排放标准》(GB18918-2002)一级A类标准。蚯蚓生态滤池内的微生物多样性冬季的要比夏季的丰富,且冬季滤池内微生物种类从上至下逐渐增加,符合污染物去除效率的变化。
关键词:  蚯蚓生态滤池  生活污水  季节  微生物  去除率  出水
DOI:
投稿时间:2010-09-15修订日期:2010-12-13
基金项目:国家“水体污染控制与治理”科技重大专项(2008ZX07101-004)
Study of earthworm ecology filter for rural sewage purification
Guo Feihong1, Wang Longmian1, Zhang Jibiao2, Zheng Zheng2
(1.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China;2.Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China)
Abstract:
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.
Key words:  earthworm ecology filter  sewage  season  microorganism  removal rate  effluent