Abstract: This paper summarized the types of hydrophobic porous membrane for oil/water separation，including conventional membranes and highly hydrophobic/superolephilic membranes. Conventional membranes are for microfiltration，ultrafiltration and nanofiltration process currently. With greater water contact angle (≥120°)，the highly hydrophobic/superolephilic membrane have highly hydrophobic surface and cover modified meshes，modified fibers，modified filter paper，composite membranes and asymmetry membranes. It is possible that the fouling resistant membrane for oil/water separation lies on highly hydrophobic/superolephilic membranes. Principles and current applications of oil/water separation process with hydrophobic membrane were discussed. In disposition process of oily wastewater，the membranes take part in demulsification of O/W emulsion，coalescence of oil droplets，filtration of oil droplets and adsorption of oil molecules respectively. In purification process of watery oil，the membranes act as selective media，where continuous oil phase is permeated and water droplets is rejected. The preparation of highly hydrophobic/superolephilic membranes，the systematic investigation to oil/water separation process and the large scale tests with industrial system，were also discussed.

Key words: membranes, oil, waste water, separation, highly hydrophobic, superolephilic

摘要： 油水分离是治理含油废水和含水油液的重要工业过程。本文概括了疏水性油水分离膜的类型与制备方法，包括常规分离膜和高度疏水/超亲油分离膜。前者为常规微滤、超滤及纳滤过程用膜；后者由构筑高度疏水（水滴接触角≥120°）表面方法得到，形式有金属网膜、纤维膜、滤纸、复合膜及不对称膜，其为制备耐污染的疏水性油水分离膜提供了新思路。指出了疏水性膜用于油水分离的过程原理及应用现状：含油废水除油中，疏水性膜可实现O/W乳液的破乳、粗粒化油滴、滤除油滴及吸附油分子几方面的功能；含水油液除水中，膜被用来截留水滴，可直接得到净化的油品。最后，指出了其过程规模化应用前尚需解决的重要问题，特别是高度疏水/超亲油分离膜的制备、相关过程研究的深入及其规模化试验等方面需着力加强。

关键词: 膜, 油, 废水, 分离, 高度疏水, 超亲油