Enhanced nitrate reduction in water by a combined bio-electrochemical system of microbial fuel cells and submerged aquatic plant Ceratophyllum demersum

doi:10.1016/j.jes.2018.11.013

CORC > 水生生物研究所 > 中科院水生所知识产出（2009年前） > 水环境工程研究中心

	Enhanced nitrate reduction in water by a combined bio-electrochemical system of microbial fuel cells and submerged aquatic plant Ceratophyllum demersum
	Xu, Peng 1; Xiao, Enrong 2; Wu, Junmei 2; He, Feng 2; Zhang, Yi 2; Wu, Zhenbin 2
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2019-04-01
卷号	78 页码:338-351
关键词	Sediment microbial fuel cells (SMFCs) Ceratophyllum demersum Power generation Nitrate (NO3-) removal Stable N isotopic Removal mechanisms
ISSN号	1001-0742
DOI	10.1016/j.jes.2018.11.013
通讯作者	Xiao, Enrong(erxiao@ihb.ac.cn)
英文摘要	High 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.
资助项目	National 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关键词	NITROGEN REMOVAL ; ELECTRICITY-GENERATION ; AMMONIUM ; SEDIMENT ; DENITRIFICATION ; COMMUNITIES ; PERFORMANCE ; BACTERIA ; RIVER ; FATE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000463377700032
资助机构	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 ; 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
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/27793]
专题	水生生物研究所_水环境工程研究中心
通讯作者	Xiao, Enrong
作者单位	1.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
推荐引用方式 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.