Tracking metal ion-induced organic membrane fouling in nanofiltration by adopting spectroscopic methods: Observations and predictions
文献类型：期刊论文
| 作者 | Su, Zhaoyang; Liu, Ting; Li, Xing; Graham, Nigel J. D.; Yu, Wenzheng
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020-03-15 |
| 卷号 | 708页码:1-8 |
| 关键词 | Natural organic matter Metal ions Complexation Nanofiltration Spectrophotometric method |
| ISSN号 | 0048-9697 |
| 英文摘要 | Natural organic matter (NOM) with the size approaching to membrane pore size is commonly considered as the crucial component leading to severe pore blocking and superfluous energy consumption. Aquatic metal ions coexisting with this NOM constituent (target NOM) exert a significant influence on membrane filtration performance; however, little work elucidated their interactions and the impacts on nanofiltration (NF). Therefore, we systematically investigated this issue by titrating three environmentally-relevant metal ions (Al3+, Fe3+ and Cu2+) into the target NOM sample obtained by pre-filtering using NF membrane. Fast spectrophotometric techniques were employed to observe the interactive performance. Results suggested that all metal ions at their critical concentrations caused severe flux decline; Cu2+ at a very low concentration of 5 mu M, Al3+ and Fe(3+)at 20 mu M. NF performance recovered when the concentrations were beyond their critical values, and was improved at excessive concentration when flocs formed. Relationship between spectroscopic characteristics and NF performance was particularly addressed. UV-vis spectrum can be expected to be useful and predictive in membrane fouling control when Al3+ or Fe3+ presented. However, fluorescence fingerprint was not likely that effective since fluorescence intensity continuously reduced with the increasing metal ion concentration, attributed to their quenching effect on NOM fluorophores. (C) 2019 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45374]  |
| 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 | Su, Zhaoyang,Liu, Ting,Li, Xing,et al. Tracking metal ion-induced organic membrane fouling in nanofiltration by adopting spectroscopic methods: Observations and predictions[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,708:1-8. |
| APA | Su, Zhaoyang,Liu, Ting,Li, Xing,Graham, Nigel J. D.,&Yu, Wenzheng.(2020).Tracking metal ion-induced organic membrane fouling in nanofiltration by adopting spectroscopic methods: Observations and predictions.SCIENCE OF THE TOTAL ENVIRONMENT,708,1-8. |
| MLA | Su, Zhaoyang,et al."Tracking metal ion-induced organic membrane fouling in nanofiltration by adopting spectroscopic methods: Observations and predictions".SCIENCE OF THE TOTAL ENVIRONMENT 708(2020):1-8. |
入库方式： OAI收割
来源：生态环境研究中心
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