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学科主题: Ecology; Engineering ; Environmental; Environmental Sciences
题名: Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system
作者: Wei Liang ; Zhen-bin Wu ; Shui-ping Cheng ; Qiao-hong Zhou ; Hong-ying Hu
通讯作者: Liang, W, Tsing Hua Univ, Dept Environm Sci & Engn, State Key Joint Lab Environm Stimulat & Pollut Co, Beijing 100084, Peoples R China
关键词: substrate microorganisms ; urease activities ; purification effects ; correlation ; constructed wetland
刊名: ECOLOGICAL ENGINEERING
发表日期: 2003
卷: 21, 期:2-3, 页:191-195
收录类别: SCI
部门归属: Tsing Hua Univ, Dept Environm Sci & Engn, State Key Joint Lab Environm Stimulat & Pollut Co, Beijing 100084, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
摘要: A vertical/reverse-vertical flow constructed wetland system was set up in Wuhan, China, to study its treatment efficiency of polluted lake water. The numbers of substrate microorganisms and urease activities in the substrate of the constructed wetland were determined by plate counts and colorimetric analysis, respectively. The removal efficiencies of biochemical oxygen demands (BOD5). chemical oxygen demands (COD), total phosphorus (TP), total Kjeldahl nitrogen (TKN), and total suspended solids (TSS) were measured by EPA approved methodology. The results showed there were significant positive correlations (P < 0.05) between numbers of microorganism in the substrate and removal rates of TKN and CODCr. Meanwhile, there was significant positive correlation (P < 0.05) between urease activities and removal efficiencies of TKN and negative correlation between urease activities and removal efficiencies of BOD5. Substrate microorganisms and urease activities played key factors during purification processes and they could be utilized as indicator of wastewater treatment performances in the constructed wetland system. (C) 2004 Elsevier B.V. All rights reserved.
WOS记录号: WOS:000220454600007
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9532
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Wei Liang; Zhen-bin Wu; Shui-ping Cheng; Qiao-hong Zhou; Hong-ying Hu.Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system,ECOLOGICAL ENGINEERING,2003,21(2-3):191-195
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