Membrane Scaling and Wetting in Membrane Distillation: Mitigation Roles Played by Humic Substances
文献类型：期刊论文
| 作者 | Wang, Peizhi; Cheng, Wei ; Zhang, Xiaolei; Liu, Qianliang; Li, Ji; Ma, Jun; Zhang, Tao
|
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 56期号:5页码:3258-3266 |
| ISSN号 | 0013-936X |
| 关键词 | HYPERSALINE BRINE REVERSE-OSMOSIS GYPSUM DESALINATION NANOFILTRATION MECHANISMS ACID PRECIPITATION RESISTANCE MORPHOLOGY |
| 英文摘要 | Membrane scaling and wetting severely hinder practical applications of membrane distillation (MD) for hypersaline water/wastewater treatment. In this regard, the effects of feedwater constituents are still not well understood. Herein, we investigated how humic acid (HA) influenced gypsum-induced membrane scaling and wetting during MD desalination. At low concentrations (5-20 mg L-1), HA notably mitigated membrane scaling and wetting. The morphological characterization of scaled membranes revealed that the antiwetting behavior could be ascribed to the formation of a compact and protective gypsum/HA scale layer, which blocked the flow channel of scaling ions and suppressed the intrusion of scale particles into membrane pores. Based on the comprehensive analysis of the scaling process, the formation of the scale layer was related to the heterogeneous crystallization of gypsum on the membrane surface. Moreover, deprotonated HA interfered with the heterogeneous crystallization process by inhibiting the formation of gypsum nuclei and altering the orientation of crystal growth, thus delaying membrane scaling and altering the morphology of the scale layer. Thermodynamic and kinetic analyses further demonstrated the mitigation mechanism of HA. Furthermore, improved fouling reversibility and antiwetting ability in synthetic seawater treatment endowed by HA were observed. This study provides new insight into the roles played by the organic constituents of water/wastewater during membrane desalination, providing a valuable reference for developing novel strategies to improve the performance of MD. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47873]  |
| 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 |
| 通讯作者 | Li, Ji |
| 作者单位 | 1.Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 3.Harbin Inst Technol Shenzhen, Shenzhen Key Lab Water Resource Applicat & Enviro, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China 4.Harbin Univ Sci & Technol, Key Lab Green Chem Engn & Technol, Sch Mat Sci & Chem Engn, Coll Heilongjiang Prov, Harbin 150040, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Peizhi,Cheng, Wei,Zhang, Xiaolei,et al. Membrane Scaling and Wetting in Membrane Distillation: Mitigation Roles Played by Humic Substances[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022,56(5):3258-3266. |
| APA | Wang, Peizhi.,Cheng, Wei.,Zhang, Xiaolei.,Liu, Qianliang.,Li, Ji.,...&Zhang, Tao.(2022).Membrane Scaling and Wetting in Membrane Distillation: Mitigation Roles Played by Humic Substances.ENVIRONMENTAL SCIENCE & TECHNOLOGY,56(5),3258-3266. |
| MLA | Wang, Peizhi,et al."Membrane Scaling and Wetting in Membrane Distillation: Mitigation Roles Played by Humic Substances".ENVIRONMENTAL SCIENCE & TECHNOLOGY 56.5(2022):3258-3266. |
入库方式： OAI收割
来源：生态环境研究中心
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