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Simultaneous nitrification and denitrification using a novel up-flow bio-electrochemical reactor

文献类型：期刊论文

作者Tang, Q; Zheng, M; Sheng, YQ; Mortimer, RJG
刊名DESALINATION AND WATER TREATMENT
出版日期2019-08
卷号158页码:97-104
关键词Nitrification and denitrification Bio-electrochemical reactor Biofilm Sulfate
ISSN号1944-3994
DOI10.5004/dwt.2019.24233
产权排序[Tang, Qi ; Zheng, Meng ; Sheng, Yanqing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai 264003, Peoples R China ; [Tang, Qi] Univ Chinese Acad Sci, Beijing, Peoples R China ; [Mortimer, Robert J. G.] Nottingham Trent Univ, Sch Anim Rural & Environm Sci, Brackenhurst Campus, Southwell NG25 0QF, Notts, England
文献子类Article
英文摘要Nitrogen removal is a problem in the field of water treatment, especially in the presence of sulfate. Conventional nitrification and denitrification are usually carried out in two separate reactors. In addition, the effect of sulfate on hydrogenotrophic denitrification is not clear. In this study, simultaneous nitrification and denitrification (SND) for nitrogen removal from water was conducted using a single novel up-flow bio-electrochemical reactor (UBER). The influence of dissolved oxygen (DO) on nitrogen removal was investigated. When influent DO was 7.0-8.0 mg L-1, a heterotrophic nitrification zone (with DO 3.2-5.5 mg L-1) and a hydrogenotrophic denitrification zone (with DO 1.6-4.2 mg L-1) were obtained within the reactor, and the removal rates of NH4+-N and TN reached more than 90%. The distribution of DO inside developing biofilms was measured using microelectrodes. When DO in the hydrogenotrophic denitrification zone was 2.9 mg L-1, DO inside the biofilm was just 0.5 mg L-1. The effect of sulfate on hydrogenotrophic denitrification was studied by regulating the S/N ratio of influent water. Simultaneous removal of nitrate and sulfate can be achieved at low S/N, and the removal rates of nitrate and sulfate were similar to 80%. With increasing S/N ratio, sulfide produced by sulfate reduction inhibited both denitrification and further sulfate reduction.
WOS关键词NITROGEN-REMOVAL ; MICROBIAL COMMUNITY ; DISSOLVED-OXYGEN ; BIOFILM ; NITRATE
WOS研究方向Engineering, Chemical ; Water Resources
语种英语
WOS记录号WOS:000472923900010
资助机构Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDA23050203] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41373100] ; CAS Key Technology Talent Program
源URL[http://ir.yic.ac.cn/handle/133337/24897]  
专题烟台海岸带研究所_山东省海岸带环境工程技术研究中心
烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China;
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai 264003, Peoples R China;
3.Nottingham Trent Univ, Sch Anim Rural & Environm Sci, Brackenhurst Campus, Southwell NG25 0QF, Notts, England
推荐引用方式
GB/T 7714		 Tang, Q,Zheng, M,Sheng, YQ,et al. Simultaneous nitrification and denitrification using a novel up-flow bio-electrochemical reactor[J]. DESALINATION AND WATER TREATMENT,2019,158:97-104.
APA Tang, Q,Zheng, M,Sheng, YQ,&Mortimer, RJG.(2019).Simultaneous nitrification and denitrification using a novel up-flow bio-electrochemical reactor.DESALINATION AND WATER TREATMENT,158,97-104.
MLA Tang, Q,et al."Simultaneous nitrification and denitrification using a novel up-flow bio-electrochemical reactor".DESALINATION AND WATER TREATMENT 158(2019):97-104.

入库方式： OAI收割

来源：烟台海岸带研究所

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