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

doi:10.5004/dwt.2019.24233

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 山东省海岸带环境工程技术研究中心

	Simultaneous nitrification and denitrification using a novel up-flow bio-electrochemical reactor
	Tang, Q ; Zheng, M ; Sheng, YQ ; Mortimer, RJG
刊名	DESALINATION AND WATER TREATMENT
	2019-08
卷号	158 页码:97-104
关键词	Nitrification and denitrification Bio-electrochemical reactor Biofilm Sulfate
ISSN号	1944-3994
DOI	10.5004/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
内容类型	期刊论文
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.Nottingham Trent Univ, Sch Anim Rural & Environm Sci, Brackenhurst Campus, Southwell NG25 0QF, Notts, England 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai 264003, Peoples R China;
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.