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Enhanced nitrate reduction in water by a combined bio-electrochemical system of microbial fuel cells and submerged aquatic plant Ceratophyllum demersum
Xu, Peng1; Xiao, Enrong2; Wu, Junmei2; He, Feng2; Zhang, Yi2; Wu, Zhenbin2
Corresponding AuthorXiao, Enrong(erxiao@ihb.ac.cn)
2019-04-01
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
ISSN1001-0742
Volume78Pages:338-351
AbstractHigh nitrate (NO3-) loading in water bodies is a crucial factor inducing the eutrophication of lakes. We tried to enhance NO3- reduction in overlying water by coupling sediment microbial fuel cells (SMFCs) with submerged aquatic plant Ceratophyllum demersum. A comparative study was conducted by setting four treatments: open-circuit SMFC (Control), closed-circuit SMFC (SMFC-c), open-circuit SMFC with C. demersum (Plant), and closed-circuit SMFC with C. demersum (P-SMFC-c). The electrochemical parameters were documented to illustrate the bio-electrochemical characteristics of SMFC-c and P-SMFC-c. Removal pathways of NO3- in different treatments were studied by adding quantitative (NO3-)-N-15 to water column. The results showed that the cathodic reaction in SMFC-c was mainly catalyzed by aerobic organisms attached on the cathode, including algae, Pseudomonas, Bacillus, and Albidiferax. The oxygen secreted by plants significantly improved the power generation of SMFC-c. Both electrogenesis and plants enhanced the complete removal of NO3- from the sediment-water system. The complete removal rates of added N-15 increased by 17.6% and 10.2% for SMFC-c and plant, respectively, when compared with control at the end of experiment. The electrochemical/heterotrophic and aerobic denitrification on cathodes mainly drove the higher reduction of NO3- in SMFC-c and plant, respectively. The coexistence of electrogenesis and plants further increased the complete removal of NO3- with a rate of 23.1%. The heterotrophic and aerobic denitrifications were simultaneously promoted with a highest abundance of Flavobacterium, Bacillus, Geobacter, Pseudomonas, Rhodobacter, and Arenimonas on the cathode. (c) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
KeywordSediment microbial fuel cells (SMFCs) Ceratophyllum demersum Power generation Nitrate (NO3-) removal Stable N isotopic Removal mechanisms
DOI10.1016/j.jes.2018.11.013
Funding OrganizationNational Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Key Research and Development Plan of China[2016YFC0500403-03] ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences[KFJ-STS-ZDTP-038]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000463377700032
WOS KeywordNITROGEN REMOVAL ; ELECTRICITY-GENERATION ; AMMONIUM ; SEDIMENT ; DENITRIFICATION ; COMMUNITIES ; PERFORMANCE ; BACTERIA ; RIVER ; FATE
PublisherSCIENCE PRESS
Funding OrganizationNational Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/27794
Collection水环境工程研究中心
Corresponding AuthorXiao, Enrong
Affiliation1.Wuhan Univ Technol, Coll Resources & Environm Engn, Wuhan 430070, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Xu, Peng,Xiao, Enrong,Wu, Junmei,et al. Enhanced nitrate reduction in water by a combined bio-electrochemical system of microbial fuel cells and submerged aquatic plant Ceratophyllum demersum[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2019,78:338-351.
APA Xu, Peng,Xiao, Enrong,Wu, Junmei,He, Feng,Zhang, Yi,&Wu, Zhenbin.(2019).Enhanced nitrate reduction in water by a combined bio-electrochemical system of microbial fuel cells and submerged aquatic plant Ceratophyllum demersum.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,78,338-351.
MLA Xu, Peng,et al."Enhanced nitrate reduction in water by a combined bio-electrochemical system of microbial fuel cells and submerged aquatic plant Ceratophyllum demersum".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 78(2019):338-351.
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