Identifying active concentrations of biopolymers for enhancing membrane nanofiltration performance: From bench-scale tests to real production considerations
文献类型：期刊论文
| 作者 | Su, Zhaoyang ; Liu, Ting; Seviour, Thomas; Li, Shuo; Tian, Long; Zhang, Guotao; Yu, Wenzheng
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2022-04-20 |
| 卷号 | 818期号:0页码:151808 |
| 关键词 | WATER-TREATMENT SYSTEMS ALGAL ORGANIC-MATTER ULTRAFILTRATION MEMBRANES COAGULATION CALCIUM SLUDGE MICROFILTRATION MECHANISMS MODEL SUBSTANCES |
| ISSN号 | 0048-9697 |
| 英文摘要 | In the last decades, membrane-based nanofiltration (NF) technique has been widely applied for safe and high-quality drinking water production worldwide. NF membrane fouling has become one of the main obstacles in its application due to high operation cost, and thus numerous efforts have been made. However, there is still a large disconnect between academic findings and their applications. Hence, novel approaches for further exploitation and application are required based on feasibility of implementation. In this work, an optimized design of membrane-based NF plants was proposed, inspired by natural biopolymers present in feed water of NF unit. Specifically, we found beneficial functions of biopolymers, including NF membrane fouling alleviation and effluent quality improvement; these advantages could only be activated under a certain concentration range of biopolymers (0-1 mg C/L here), and less or more is not acceptable. This indicated that a NF unit is better to follow a microfiltration (MF) (instead of ultrafiltration (UF) which removes biopolymers) process during which natural biopolymers could be remained; also, this approach is suggested to be valid across different seasons when biopolymers' concentrations could be controlled within an activated range by mixing MF and UF permeates. Furthermore, three representative reference biopolymers with different, confirmed spatial structures and molecular weight (MW) were used to elucidate the micro-level functions of natural biopolymers on NF membranes, suggesting that cake layer structures shaped by various biopolymers determine the resulting NF performance. Overall, this innovative proposal is expected to be considered and adopted towards more energy-efficient NF technology for drinking water supply. (C) 2021 Elsevier B.V. All rights reserved. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47702]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 通讯作者 | Yu, Wenzheng |
| 作者单位 | 1.Duke Univ, Ctr Environm Implicat Nanotedrnol, Durham, NC 27708 USA 2.Beijing Inst Technol, Sch Chem & Chem Engn, Beijing 100081, Peoples R China 3.Aarhus Univ, Ctr Water Technol WATEC Biol & Chem Engn, DK-8000 Aarhus, Denmark 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 5.Nanyang Technol Univ, Singapore Ctr Environm Life Sci Engn, Singapore 637551, Singapore |
| 推荐引用方式 GB/T 7714 | Su, Zhaoyang,Liu, Ting,Seviour, Thomas,et al. Identifying active concentrations of biopolymers for enhancing membrane nanofiltration performance: From bench-scale tests to real production considerations[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,818(0):151808. |
| APA | Su, Zhaoyang.,Liu, Ting.,Seviour, Thomas.,Li, Shuo.,Tian, Long.,...&Yu, Wenzheng.(2022).Identifying active concentrations of biopolymers for enhancing membrane nanofiltration performance: From bench-scale tests to real production considerations.SCIENCE OF THE TOTAL ENVIRONMENT,818(0),151808. |
| MLA | Su, Zhaoyang,et al."Identifying active concentrations of biopolymers for enhancing membrane nanofiltration performance: From bench-scale tests to real production considerations".SCIENCE OF THE TOTAL ENVIRONMENT 818.0(2022):151808. |
入库方式： OAI收割
来源：生态环境研究中心
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