| Simultaneous nitrification and denitrification using a novel up-flow bio-electrochemical reactor | |
Tang, Q; Zheng, M; Sheng, YQ ; Mortimer, RJG
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| 发表期刊 | DESALINATION AND WATER TREATMENT
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| ISSN | 1944-3994 |
| 2019-08 | |
| 卷号 | 158页码:97-104 |
| 关键词 | Nitrification and denitrification Bio-electrochemical reactor Biofilm Sulfate |
| 研究领域 | Engineering, Chemical ; Water Resources |
| 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 |
| 作者部门 | 海岸带环境工程技术研究与发展中心 |
| 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. |
| 文章类型 | Article |
| 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 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | NITROGEN-REMOVAL ; MICROBIAL COMMUNITY ; DISSOLVED-OXYGEN ; BIOFILM ; NITRATE |
| 研究领域[WOS] | Engineering, Chemical ; Water Resources |
| WOS记录号 | WOS:000472923900010 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24897 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心 中国科学院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn Technol Shandong Pr, Yantai 264003, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, 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. |
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