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Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system
Wei Liang; Zhen-bin Wu; Shui-ping Cheng; Qiao-hong Zhou; Hong-ying Hu; Liang, W, Tsing Hua Univ, Dept Environm Sci & Engn, State Key Joint Lab Environm Stimulat & Pollut Co, Beijing 100084, Peoples R China
2003
Source PublicationECOLOGICAL ENGINEERING
Volume21Issue:2-3Pages:191-195
AbstractA 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.
KeywordSubstrate Microorganisms Urease Activities Purification Effects Correlation Constructed Wetland
DepartmentTsing 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
Subject AreaEcology ; Environmental ; Engineering ; Environmental Sciences
Indexed BySCI
WOS IDWOS:000220454600007
Citation statistics
Cited Times:49[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9532
Collection期刊论文
Corresponding AuthorLiang, W, Tsing Hua Univ, Dept Environm Sci & Engn, State Key Joint Lab Environm Stimulat & Pollut Co, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Wei Liang,Zhen-bin Wu,Shui-ping Cheng,et al. Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system[J]. ECOLOGICAL ENGINEERING,2003,21(2-3):191-195.
APA Wei Liang,Zhen-bin Wu,Shui-ping Cheng,Qiao-hong Zhou,Hong-ying Hu,&Liang, W, Tsing Hua Univ, Dept Environm Sci & Engn, State Key Joint Lab Environm Stimulat & Pollut Co, Beijing 100084, Peoples R China.(2003).Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system.ECOLOGICAL ENGINEERING,21(2-3),191-195.
MLA Wei Liang,et al."Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system".ECOLOGICAL ENGINEERING 21.2-3(2003):191-195.
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