New insights into restoring microbial communities by side-stream supersaturated oxygenation to improve the resilience of rivers affected by combined sewer overflows
文献类型：期刊论文
| 作者 | Zhu, Qiuheng; Li, Xiaoguang; Li, Guowen; Tang, Wenzhong ; Li, Caole; Li, Jiaxi; Zhao, Chen; Du, Caili; Liang, Xiaodan; Li, Wei
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-08-15 |
| 卷号 | 782页码:- |
| ISSN号 | 0048-9697 |
| 关键词 | Combined sewer overflow Side-stream Oxygenation Urban river restoration Microbial function |
| 英文摘要 | Combined sewer overflows (CSOs) are a dominant contributor to urban river pollution. Therefore, reducing the environmental impacts of CSOs and improving the self-purification capacity of water bodies are essential. In this study, the side-stream supersaturation (SSS) oxygenation was applied to restore microbial function of rivers which are affected by CSOs to improve the self-purification capacity. The results showed that apart from the dissolved organic matter inputs from CSO event, the sediment had become an important contributor to pollution in the studied river. After the long-term (46 d) implementation of SSS oxygenation, dissolved oxygen and the oxidation-reduction potential of the river water increased by 98% and 238%, respectively, compared to emergency control measures implemented following individual CSO events. The NH3-N concentrations and the chemical oxygen demand also decreased by 20% and 45%, respectively. In addition, the occurrence of microbial functions related to information storage and processing, and cellular process and signaling, increased by 1.87% and 0.82% in response to SSS oxygenation, respectively, and the Shannon index of the sediment microbial community increased by more than 15%. The frequencies of genes related to nitrification and sulfur oxidation also increased by 20-450% and >50%, respectively. This research provides new insights into the ecological restoration of rivers affected by CSOs. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45969]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China 2.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 3.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 5.Chinese Res Inst Environm Sci, Basin Res Ctr Water Pollut Control, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Qiuheng,Li, Xiaoguang,Li, Guowen,et al. New insights into restoring microbial communities by side-stream supersaturated oxygenation to improve the resilience of rivers affected by combined sewer overflows[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,782:-. |
| APA | Zhu, Qiuheng.,Li, Xiaoguang.,Li, Guowen.,Tang, Wenzhong.,Li, Caole.,...&Zhang, Lieyu.(2021).New insights into restoring microbial communities by side-stream supersaturated oxygenation to improve the resilience of rivers affected by combined sewer overflows.SCIENCE OF THE TOTAL ENVIRONMENT,782,-. |
| MLA | Zhu, Qiuheng,et al."New insights into restoring microbial communities by side-stream supersaturated oxygenation to improve the resilience of rivers affected by combined sewer overflows".SCIENCE OF THE TOTAL ENVIRONMENT 782(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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