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Enzyme activities in pilot-scale constructed wetlands for treating urban runoff in China: temporal and spatial variations
Guo Weijie1,3; Li Zhu1,3; Cheng Shuiping2; Liang Wei1; Wu Zhenbin1
2015-12-11
Source PublicationDESALINATION AND WATER TREATMENT
ISSN1944-3994
Volume56Issue:11Pages:3113-3121
AbstractTwo pilot-scale integrated constructed wetland (ICW) systems were constructed to assess the feasibility of treating urban runoff in Hefei, P.R. China. Each ICW consisted of a down-flow chamber (50m(2), planted with Canna indica), an up-flow chamber (50m(2), planted with Iris pseudacorus), and a horizontal subsurface-flow chamber (50m(2), planted with Acorus calamus) in series. Substrate enzyme activities, growth of vegetation, and contaminant removal efficiencies were monitored during a one-year period. These two systems, achieved an average efficiency of 64.8% for total phosphorus (TP), 59.6% for total nitrogen (TN), 52.7% for ammonium (NH4+-N, and 72.7% for chemical oxygen demand (COD). There were significant correlations between the phosphatase (PP) activity and the removal efficiencies of TP and COD, as well as between the urease (UR) activity and TN removal. The activities of both nitrate reductase (NR) and PP were the highest in down-flow chamber (DFC), and then in up-flow chamber (UFC) and horizontal subsurface-flow chamber (HFC), successively. Meanwhile, the maximum enzyme activities of DFC and UFC occurred in summer or autumn when plants were in the vigorous growing stage. Furthermore, the enzyme activities of both PP and UR were significantly correlated with all growth parameters of C. indica in DFC. Significant correlations existed between the root number of I. pseudacorus, and PP and UR activities in UFC. In HFC, there were no significant correlations between the enzyme activities (PP, UR, and NR) and all growth parameters of A. calamus.
SubtypeArticle
KeywordPilot-scale Constructed Wetland Plant Growth Removal Efficiency Substrate Enzyme Activity Urban Runoff
DOI10.1080/19443994.2014.966327
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed BySCI
Funding OrganizationNational Major Program of Science and Technology in China(2008ZX07316-004 ; National Major Program of Science and Technology in China(2008ZX07316-004 ; National Nature Science Foundation of China(31123001) ; National Nature Science Foundation of China(31123001) ; 2011ZX07303-002 ; 2011ZX07303-002 ; 2012ZX07101007-005) ; 2012ZX07101007-005) ; National Major Program of Science and Technology in China(2008ZX07316-004 ; National Major Program of Science and Technology in China(2008ZX07316-004 ; National Nature Science Foundation of China(31123001) ; National Nature Science Foundation of China(31123001) ; 2011ZX07303-002 ; 2011ZX07303-002 ; 2012ZX07101007-005) ; 2012ZX07101007-005)
Language英语
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
WOS KeywordDOMESTIC SEWAGE-TREATMENT ; STORMWATER RUNOFF ; WASTE-WATER ; COMMUNITY STRUCTURE ; NITRATE REDUCTASE ; SALT-MARSH ; REMOVAL ; EFFICIENCY ; SOIL ; BIODEGRADATION
WOS IDWOS:000364207800034
Funding OrganizationNational Major Program of Science and Technology in China(2008ZX07316-004 ; National Major Program of Science and Technology in China(2008ZX07316-004 ; National Nature Science Foundation of China(31123001) ; National Nature Science Foundation of China(31123001) ; 2011ZX07303-002 ; 2011ZX07303-002 ; 2012ZX07101007-005) ; 2012ZX07101007-005) ; National Major Program of Science and Technology in China(2008ZX07316-004 ; National Major Program of Science and Technology in China(2008ZX07316-004 ; National Nature Science Foundation of China(31123001) ; National Nature Science Foundation of China(31123001) ; 2011ZX07303-002 ; 2011ZX07303-002 ; 2012ZX07101007-005) ; 2012ZX07101007-005)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27346
Collection水环境工程研究中心
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Tongji Univ, Minist Educ, Key Lab Yangtze River Water Environm, Shanghai 200092, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Guo Weijie,Li Zhu,Cheng Shuiping,et al. Enzyme activities in pilot-scale constructed wetlands for treating urban runoff in China: temporal and spatial variations[J]. DESALINATION AND WATER TREATMENT,2015,56(11):3113-3121.
APA Guo Weijie,Li Zhu,Cheng Shuiping,Liang Wei,&Wu Zhenbin.(2015).Enzyme activities in pilot-scale constructed wetlands for treating urban runoff in China: temporal and spatial variations.DESALINATION AND WATER TREATMENT,56(11),3113-3121.
MLA Guo Weijie,et al."Enzyme activities in pilot-scale constructed wetlands for treating urban runoff in China: temporal and spatial variations".DESALINATION AND WATER TREATMENT 56.11(2015):3113-3121.
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