近年来,油水分离技术不断进步,其中重力驱动过滤技术以油和水不混溶的特点可以快速的分离这两种液体,并且与其他需要能源的传统方法相比,这种方法更具有经济效益。但是,由于乳液体系比较稳定,且乳液的液滴尺寸更小,增大了分离难度。为了实现重力下的分离,乳液分离材料应该具有较高的孔隙度和合适的孔径,还应对乳液中的油相或水相具有特殊的润湿性。本文介绍了不同的乳液分离材料和影响乳液分离的因素,并且介绍了相应的修饰技术以及功能化策略,指出重力过滤下乳液分离膜的问题,并对其发展方向进行了展望。
In recent years,oil and water separation technology has been improved,among which gravity-driven filtration technology can quickly separate two kinds of liquids because oil and water are not miscible.Compared with other traditional methods that require energy,this method is more economical.However,the emulsion system is relatively stable and the particle size of the emulsion droplets is small,which increases the difficulty of separation.In order to achieve gravity separation,emulsion separation materials should have high porosity and suitable pore size,and should also have special wettability for the oil or water phases in the emulsion.Different emulsion separation materials and the factors affecting the emulsion separation were introduced,and introduced the corresponding modification technology and functional strategy.The existing problems of emulsion separation membrane under gravity filtration were pointed out,and prospected its development direction.
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基金资助
国家自然科学基金(22076021);省属本科高校“省杰青”培育基金(SJQHB201902);黑龙江省留学回国人员择优资助项目(2019QD0019);省属本科高校“国家基金”培育基金(2018GPQ2-06)
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