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Bioelectrochemical approach for control of methane emission from wetlands
Liu, Shentan1,2,4; Feng, Xiaojuan3; Li, Xianning2
2017-10-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume241Pages:812-820
Corresponding AuthorLiu, Shentan(liushentan@seu.edu.cn)
AbstractTo harvest electricity and mitigate methane emissions from wetlands, a novel microbial fuel cell coupled constructed wetland (MFC-CW) was assembled with an anode placing in the rhizosphere and a cathode on the water surface. Plant-mediated methane accounted for 71-82% of the total methane fluxes. The bioanode served as an inexhaustible source of electron acceptors and resulted in reduced substantial methane emissions owing to electricigens outcompeting methanogens for carbon and electrons when substrate was deficient. However, when supplying sufficient organic carbon, both electricity and methane increased, indicating that electrogenesis and methanogenesis could co-exist in harmony. Direct methane emission (diffusion/ebullition) and plant-mediated methane emission were affected by operating conditions. Methanogenesis was significantly suppressed (similar to 98%) at HRT of 96 h and with external resistance of 200 X, accompanied with improved coulombic efficiency of 14.9% and current density of 187 mA/m(2). Contrarily, change of electrode polarity in the rhizosphere led to more methane efflux. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordMethane Constructed wetland Coulombic efficiency Current density Rhizosphere
DOI10.1016/j.biortech.2017.06.031
WOS KeywordMICROBIAL FUEL-CELL ; FLOW CONSTRUCTED WETLAND ; ELECTRICITY PRODUCTION ; WASTE-WATER ; METHANOGENESIS ; REMOVAL ; CATHODE ; STIMULATION ; ENHANCEMENT ; PERFORMANCE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21277024] ; China Postdoctoral Science Foundation[2016M601049]
Funding OrganizationNational Natural Science Foundation of China ; China Postdoctoral Science Foundation
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000405502400096
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/62882
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Shentan
Affiliation1.Tsinghua Univ, Minist Educ China,Key Lab Solid Waste Management, Sch Environm,State Key Joint Lab Environm Simulat, Beijing Key Lab Emerging Organ Contaminants Contr, Beijing 100084, Peoples R China
2.Southeast Univ, Sch Energy & Environm, Nanjing 210096, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China
4.Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Liu, Shentan,Feng, Xiaojuan,Li, Xianning. Bioelectrochemical approach for control of methane emission from wetlands[J]. BIORESOURCE TECHNOLOGY,2017,241:812-820.
APA Liu, Shentan,Feng, Xiaojuan,&Li, Xianning.(2017).Bioelectrochemical approach for control of methane emission from wetlands.BIORESOURCE TECHNOLOGY,241,812-820.
MLA Liu, Shentan,et al."Bioelectrochemical approach for control of methane emission from wetlands".BIORESOURCE TECHNOLOGY 241(2017):812-820.
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