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主要研究了处理含油污水用的聚砜超滤膜的分离、透过性能与制膜液配方(聚合物浓度、溶剂及添加剂的种类和配比)之间的关系.确定了最佳的制膜液配比.所制得的膜在操作压力为0.36MPa(绝)时,其纯水通量为750L/(m~2·h).处理含石油类36～100ppm的含油污水时透过液通量达130～355L/(m~2·h).透过液中含油量降至10ppm以下.透过液中的石油类、悬浮物及色度等都基本上达到国家排放标准及油田注水用标准.
The relationship between the separation and permeation performance of polysulfone ultrafiltration membrane used in oily wastewater treatment and the formulation of the membrane-forming solution (polymer concentration, species and ratio of solvent and additives) was mainly studied. The best membrane Liquid ratio The resulting membrane at a working pressure of 0.36MPa (absolute), the pure water flux of 750L / (m ~ 2 · h), when dealing with oil-containing sewage containing 36 ~ 100ppm oil through the liquid Flux of 130 ~ 355L / (m ~ 2 · h) through the liquid oil content decreased to below 10ppm through the liquid petroleum, suspended solids and color basically meet the national emission standards and oil field water injection Use standard.