Systematic Design of a Flow-Through Titanium Electrode-Based Device with Strong Oil Droplet Rejection Property for Superior Oil-in-Water Emulsion Separation Performance
文献类型：期刊论文
| 作者 | Li, Xi ; Lan, Huachun; Zhang, Gong; Tan, Xiao; Liu, Huijuan
|
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2022-04-05 |
| 卷号 | 56期号:7页码:4151-4161 |
| 关键词 | WASTE-WATER MEMBRANE REMOVAL TECHNOLOGY SURFACE SPILL NANOSTRUCTURES FLOTATION FIELD FOAM |
| ISSN号 | 0013-936X |
| 英文摘要 | Oily wastewater treatment has been restricted by the existence of stable oil-in-water (O/W) emulsions containing micrometer-sized oil droplets. However, the strong adhesion and stacking of emulsified oil droplets on the surface of current separation media cause serious fouling of the treatment unit and the rapid decline of treatment efficiency. Herein, a novel flow-through titanium (Ti) electrode-based filtration device with remarkable oil droplet rejection property was well designed for the continuously separating O/W emulsion. In contrast to the pristine Ti foam, the permeance of the TiO2 nanoarray-coated Ti foam (NATF) increased from 2538 to 4364 L m(-2) h(-1) bar(-1) through gravity-driven flow. Further, more than similar to 70% permeability can be maintained after 6 h of O/W emulsion filtration using the current device, the value of which was markedly higher than that of conventional oil/water separation filters (less than 5%). According to the results of wettability test, the super-oil-repellent surface endowed by this nanoarray structure primarily avoided the formation of a compact oil fouling layer. When the voltage was applied, accompanied by the electrophoresis effect, redistribution of surfactant molecules on the surface of oil droplets induced by an electric field made them readily captured by the microbubbles continuously generated from the electrode, thereby rapidly migrating these bubble-adhered oil droplets far from the filtration medium. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47733]  |
| 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 | Zhang, Gong |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Environm Aquat Chem, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Tsinghua Univ, Ctr Water & Ecol, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xi,Lan, Huachun,Zhang, Gong,et al. Systematic Design of a Flow-Through Titanium Electrode-Based Device with Strong Oil Droplet Rejection Property for Superior Oil-in-Water Emulsion Separation Performance[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022,56(7):4151-4161. |
| APA | Li, Xi,Lan, Huachun,Zhang, Gong,Tan, Xiao,&Liu, Huijuan.(2022).Systematic Design of a Flow-Through Titanium Electrode-Based Device with Strong Oil Droplet Rejection Property for Superior Oil-in-Water Emulsion Separation Performance.ENVIRONMENTAL SCIENCE & TECHNOLOGY,56(7),4151-4161. |
| MLA | Li, Xi,et al."Systematic Design of a Flow-Through Titanium Electrode-Based Device with Strong Oil Droplet Rejection Property for Superior Oil-in-Water Emulsion Separation Performance".ENVIRONMENTAL SCIENCE & TECHNOLOGY 56.7(2022):4151-4161. |
入库方式： OAI收割
来源：生态环境研究中心
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