Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system

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	Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system
	Liang, W ; Wu, ZB ; Cheng, SP ; Zhou, QH ; Hu, HY
刊名	ECOLOGICAL ENGINEERING
	2003-12-01
卷号	21 期号:2-3 页码:191-195
关键词	substrate microorganisms urease activities purification effects correlation constructed wetland
ISSN号	0925-8574
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
中文摘要	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.
英文摘要	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.
学科主题	Ecology; Engineering ; Environmental; Environmental Sciences
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]	Ecology ; Engineering, Environmental ; Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology ; Engineering
关键词[WOS]	AQUATIC MACROPHYTES ; NITROGEN REMOVAL
收录类别	SCI
语种	英语
WOS记录号	WOS:000220454600007
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/9532]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	1.Tsing Hua Univ, Dept Environm Sci & Engn, State Key Joint Lab Environm Stimulat & Pollut Co, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Liang, W,Wu, ZB,Cheng, SP,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	Liang, W,Wu, ZB,Cheng, SP,Zhou, QH,&Hu, HY.(2003).Roles of substrate microorganisms and urease activities in wastewater purification in a constructed wetland system.ECOLOGICAL ENGINEERING,21(2-3),191-195.
MLA	Liang, W,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.