Characterization and release profile of (Mn, Al)-bearing deposits in drinking water distribution systems
文献类型：期刊论文
| 作者 | Shi, Baoyou ; Xu, Hongfu; Li, Guiwei; Ding, Yuanxun; Jin, Junwei
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 197页码:73-80 |
| 关键词 | Drinking water distribution system Pipe deposits Manganese Aluminum Release |
| ISSN号 | 0045-6535 |
| 文献子类 | Article |
| 英文摘要 | Inorganic contaminants accumulation in drinking water distribution systems (DWDS) is a great threat to water quality and safety. This work assessed the main risk factors for different water pipes and discovered the release profile of accumulated materials in a full scale distribution system frequently suffered from water discoloration problem. Physicochemical characterization of pipe deposits were performed using X-ray fluorescence, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. The metal release profile was obtained through continuous monitoring of a full-scale DWDS area. The results showed that aluminum and manganese were the main metals of deposits in nonmetallic pipes, while iron was dominant in iron based pipe corrosion scales. Manganese primarily existed as MnO2 without well crystalline form. The relative abundance of Mn and Fe in deposits changed with their distance from the water treatment plant. Compared with iron in corrosion scales, Mn and Al were more labile to be released back into bulk water during unidirectional flushing process. A main finding of this work is the co-release behavior of Mn and Al in particulate form and significant correlation exists between these two metals. Dual control of manganese and aluminum in treated water is proposed to be essential to cope with discoloration and trace metal contamination in DWDS. (C) 2018 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41327]  |
| 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 | Shi, Baoyou,Xu, Hongfu,Li, Guiwei,et al. Characterization and release profile of (Mn, Al)-bearing deposits in drinking water distribution systems[J]. CHEMOSPHERE,2018,197:73-80. |
| APA | Shi, Baoyou,Xu, Hongfu,Li, Guiwei,Ding, Yuanxun,&Jin, Junwei.(2018).Characterization and release profile of (Mn, Al)-bearing deposits in drinking water distribution systems.CHEMOSPHERE,197,73-80. |
| MLA | Shi, Baoyou,et al."Characterization and release profile of (Mn, Al)-bearing deposits in drinking water distribution systems".CHEMOSPHERE 197(2018):73-80. |
入库方式： OAI收割
来源：生态环境研究中心
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