YUYang,HEMeng-ting,LIRui,et al.Research Progress on Gravity-driven Oil-water Separation Membranes[J].China Water & Wastewater,2023,39(18):22-31.
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Research Progress on Gravity-driven Oil-water Separation Membranes

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第18期 Page: 22-31 Column: Date of publication: 2023-09-17
Author(s):
YU　Yang1;  HE　Meng-ting2;  LI　Rui2;  YAN　Bei-bei2;  LI　Ning2;  CHEN　Guan-yi2; 3;  HOU　Li-an2
（1. Tianjin International Engineering Institute， Tianjin University， Tianjin 300350， China； 2. School of Environmental Science & Engineering， Tianjin University， Tianjin 300350， China； 3. School of Mechanical Engineering， Tianjin University of Commerce， Tianjin 300134， China）
Keywords:
oily wastewater;  membrane separation;  gravity-driven
Abstract:
A large amount of oily wastewater is produced in production and life, which poses serious threats to the environment and human health. Membrane separation technology is regarded as an effective way to treat oily wastewater, among which the gravity-driven membranes exhibit high separation efficiency and low energy consumption, arousing widespread concern. At present, three types of gravity-driven oil-water separation membranes have been reported including super hydrophilic, super hydrophobic and amphiphilic membranes. High separation efficiency of oil-water mixture is realized, showing a broad application prospect. The preparation methods and separation efficiency of gravity-driven oil-water separation membranes in recent years were summarized. Besides, the type and mechanism of gravity-driven oil-water separation membranes were described systematically. Finally, the problems of gravity-driven oil-water separation membranes in the treatment of oily wastewater were summarized and the related future development trends were outlooked.
Last Update: 2023-09-17