Effect of plant harvest on methane emission from two constructed wetlands designed for the treatment of wastewater.

Effect of plant harvest on methane emission from two constructed wetlands designed for the treatment of wastewater. Research Abstract Details 

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Effect of plant harvest on methane emission from two constructed wetlands designed for the treatment of wastewater. Abstract Text:

Nanwen Zhu,Ping An,B Krishnakumar,Ling Zhao,Liwei Sun,Motoyuki Mizuochi,Yuhei Inamori,Nanwen Zhu,Ping An,B Krishnakumar,Ling Zhao,Liwei Sun,Motoyuki Mizuochi,Yuhei Inamori,

The emission of methane from two constructed wetlands [a free water surface flow system (FWS) and a subsurface flow system (SF)], constructed for the treatment of waste water, was evaluated at different sites inhabited by reeds (Phragmites communis), to test the effects of plant harvest. High methane emission was recorded immediately after harvesting in both wetlands. Several days after harvesting, the emission decreased in the FWS but remained high in the SF. The variation was significantly influenced by temperature, with lower emission and higher dissolved CH(4) in water occurring at lower temperatures. Both the emission and concentration of dissolved CH(4) were also influenced significantly by water quality, wetland design, level of stalk butt left above the water level, etc. The methane flux was explained on the basis of rizhospheric methanogenic and methanotrophic microbial populations. FISH analysis indicated the presence of Type A and Type B methanotrophs in both wetlands, and the methane flux was directly influenced by the quantitative variation in methanogenic and methanotrophic bacteria in both wetlands.

Effect of plant harvest on methane emission from two constructed wetlands designed for the treatment of wastewater. Publishing Authors By Initials

N Zhu,P An,B Krishnakumar,L Zhao,L Sun,M Mizuochi,Y Inamori,N Zhu,P An,B Krishnakumar,L Zhao,L Sun,M Mizuochi,Y Inamori,

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Effect of plant harvest on methane emission from two constructed wetlands designed for the treatment of wastewater. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of environmental management

VOLUME: 85

Page Numbers: 936-43

Journal Abbreviation: J. Environ. Manage.

ISSN: 0301-4797

DAY: 26

MONTH: 12

YEAR: 2006

Effect of plant harvest on methane emission from two constructed wetlands designed for the treatment of wastewater. Information

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LANGUAGE: eng

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AFFILIATION: School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, China. nwzhu@sjtu.edu.cn

Country: England

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MEDLINETA: J Environ Manage

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