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题名: How Temperature Affects Wastewater Nitrate Removal in a Bioelectrochemically Assisted Constructed Wetland System
作者: Xu, Dan1, 2; Xiao, Enrong2; Xu, Peng2, 3; Zhou, Yin2, 3; Zhou, Qiaohong2; Xu, Dong2; Wu, Zhenbin2
关键词: constructed wetland ; bioelectrochemically ; nitrate removal ; temperature
刊名: POLISH JOURNAL OF ENVIRONMENTAL STUDIES
发表日期: 2018
DOI: 10.15244/pjoes/75958
卷: 27, 期:2, 页:953-958
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: A novel bioelectrochemically assisted constructed wetland system (BECW) was investigated using a laboratory-scale experimental apparatus for treating nitrate-contaminated water without an organic carbon source. The BECW was operated at 29 +/- 1 and 18 +/- 1 degrees C, respectively, to explore the effects of temperature on the autotrophic denitrification process. The results showed that higher TN removal efficiency (76.30 +/- 5.08%) was obtained at higher temperature when compared to a lower temperature (48.18 +/- 4.40%). The effluent concentrations of NO2--N and NH4+-N at 18 +/- 1 degrees C were 0.40 +/- 0.11 and 0.50 +/- 0.42 mg N whereas those at 29 +/- 1 degrees C could be neglected. Besides, significant accumulations of NO2--N and NH4+-N were observed in the cathode region at 18 +/- 1 degrees C through quantifying different forms of nitrogen that varied along the flow path.
关键词[WOS]: CARBON SOURCE ; AUTOTROPHIC DENITRIFICATION ; DRINKING-WATER ; SECONDARY EFFLUENT ; GROUNDWATER ; PERFORMANCE ; NITROGEN ; BACTERIA
语种: 英语
项目资助者: National Natural Science Foundation of China(51308530) ; Key Research Program of the Chinese Academy of Sciences(KFZD-SW-302-02) ; National Key Research and Development Plan of China(2016YFC0500403-03) ; Provincial Natural Science Foundation of Hubei Province(2015CFB558)
WOS记录号: WOS:000424111300050
ISSN号: 1230-1485
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/50671
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.Wuhan Univ Technol, Coll Resources & Environm Engn, Wuhan 430070, Hubei, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
3.Grad Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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