Stimulating ammonia oxidizing bacteria (AOB) activity drives the ammonium oxidation rate in a constructed wetland (CW)
文献类型：期刊论文
| 作者 | Zhu, Guibing; Wang, Mengzi; Huang, Wei; Wu, Di; Wang, Weidong; Su, Yu |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2018-05-15 |
| 卷号 | 624页码:87-95 |
| 关键词 | Ammonia-oxidizing bacteria (AOB) Ammonium oxidation rate 1-octyne Microbial processes Riparian zone Source water treatment wetland |
| ISSN号 | 0048-9697 |
| 文献子类 | Article |
| 英文摘要 | An integrated approach to document high ammonium oxidation rate in Guanjinggang constructed wetland (GJG-CW) was performed and the results showed that the substantial ammonium oxidation rate could be obtained by enhancing Ammonia Oxidizing Bacteria (AOB) activity rather than Ammonia Oxidizing Archaea (AOA) activity. In the plant-bed/ditch system, ditch center and plant-bed fringe were two active zones for NH4+-N removal with ammonium oxidation rate peaking at 2.98 +/- 0.04 and 2.15 +/- 0.02 mg N kg(-1)d(-1), respectively. The enhanced AOB activity were achieved by increasing water level fluctuations, extending hydraulic retention time (HRT) and stimulating substrate availability, which subsequently enhanced NH4+-N removal by 34.06% in GJG-CW. However, the high AOB activity was not correlated with high AOB abundance, but was instead mostly determined by specific AOB taxa, particularly Nitrosomonas, which dominated in the active AOB. The increased cell-specific AOA activity and high AOA diversity were also achieved using those engineering measures. Although the AOA activity decreased overall with extended HRT and increased NH4+-N contents in GJG-CW, AOA still played a major role on ammonium oxidation in plant-bed soil. The study illustrated that artificially enhancing AOB activity and certain species in anthropogenically polluted water ecosystems would be an effective strategy to improve NH4+-N removal. (C) 2017 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41413]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhu, Guibing,Wang, Mengzi,Huang, Wei,et al. Stimulating ammonia oxidizing bacteria (AOB) activity drives the ammonium oxidation rate in a constructed wetland (CW)[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,624:87-95. |
| APA | Zhu, Guibing,Wang, Mengzi,Huang, Wei,Wu, Di,Wang, Weidong,&Su, Yu.(2018).Stimulating ammonia oxidizing bacteria (AOB) activity drives the ammonium oxidation rate in a constructed wetland (CW).SCIENCE OF THE TOTAL ENVIRONMENT,624,87-95. |
| MLA | Zhu, Guibing,et al."Stimulating ammonia oxidizing bacteria (AOB) activity drives the ammonium oxidation rate in a constructed wetland (CW)".SCIENCE OF THE TOTAL ENVIRONMENT 624(2018):87-95. |
入库方式： OAI收割
来源：生态环境研究中心
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