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题名: Enhanced phosphorus reduction in simulated eutrophic water: a comparative study of submerged macrophytes, sediment microbial fuel cells, and their combination
作者: Xu, Peng1, 2; Xiao, Enrong1; Xu, Dan1, 3; Li, Juan1, 3; Zhang, Yi1; Dai, Zhigang1; Zhou, Qiaohong1; Wu, Zhenbin1
关键词: Sediment microbial fuel cell ; Vallisneria spiralis ; coupled system ; phosphorus reduction ; anode bacterial community
刊名: ENVIRONMENTAL TECHNOLOGY
发表日期: 2018
DOI: 10.1080/09593330.2017.1323955
卷: 39, 期:9, 页:1144-1157
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The phosphorus reduction in water column was attempted by integrating sediment microbial fuel cells (SMFCs) with the submerged macrophyte Vallisneria spiralis. A comparative study was conducted to treat simulated water rich in phosphate with a control and three treatments: SMFC alone (SMFC), submerged macrophytes alone (macophyte), and combined macrophytes and fuel cells (M-SMFC). All treatments promoted phosphorus flux from the water column to sediments. Maximum phosphorus reduction was obtained in proportion to the highest stable phosphorus level in sediments in M-SMFC. For the initial phosphate concentrations of 0.2, 1, 2, and 4mg/L, average phosphate values in the overlying water during four phases decreased by 33.3% (25.0%, 8.3%), 30.8% (5.1%, 17.9%), 36.5% (27.8%, 15.7%), and 36.2% (0.7%, 22.1%) for M-SMFC (macrophyte, SMFC), compared with the control. With macrophyte treatment, the obvious phosphorus release from sediments was observed during the declining period. However, such phenomenon was significantly inhibited with M-SMFC. The electrogenesis bacteria achieved stronger phosphorus adsorption and assimilation was significantly enriched on the closed-circuit anodes. The higher abundance of Geobacter and Pseudomonas in M-SMFC might in part explain the highest phosphorus reduction in the water column. M-SMFC treatment could be promising to control the phosphorus in eutrophic water bodies.
关键词[WOS]: WASTE-WATER ; ORGANIC-MATTER ; AQUATIC SEDIMENTS ; MARINE-SEDIMENTS ; LAKE-SEDIMENTS ; IRON ; REMOVAL ; PERFORMANCE ; PHOSPHATE ; ELECTRICITY
语种: 英语
项目资助者: National Natural Science Foundation of China(51308530) ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07101007-005) ; National Key Research and Development Plan of China(2016YFC0500403-03) ; Chinese Academy of Sciences(KFZD-SW-302-02)
WOS记录号: WOS:000427848000007
ISSN号: 0959-3330
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/50699
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Wuhan Univ Technol, Coll Resources & Environm Engn, Wuhan, Hubei, Peoples R China
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