The microfiltration membrane separation process in oil effluent treatment was investigated experimentally. The flux of poly(styrene-co-acrylonitrile) with 25 wt % (SAN25) and 30 wt % (SAN30) of acrylonitrile fraction using different solvents in two different feed types (distilled water and 5000 mg L⁻¹ stabilized oil-in-water (O/W) emulsion) was studied. In the case of the O/W emulsion, the performance of the membranes was evaluated using oil rejection. The chemical oxygen demand test was used to analyze the oil concentration in the permeate and to calculate the rejection. The results show a decline in the O/W treatment flux in comparison with the distilled water. The water permeate of SAN25 using dimethylformamide and N-methyl-2-pyrrolidone was 200 and 170 L m⁻²h⁻¹, respectively, and permeate flux values of 290 and 210 L m⁻²h⁻¹ were obtained using SAN30.

中文翻译：

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用于高效水包油乳液分离的共聚物膜制备

对微滤膜分离处理石油废水的过程进行了实验研究。在两种不同的进料类型（蒸馏水和 5000 mg L ^-1稳定的油包油）中使用不同溶剂的聚（苯乙烯-共聚-丙烯腈）与 25 wt% (SAN25) 和 30 wt% (SAN30) 丙烯腈馏分的通量水 (O/W) 乳液）进行了研究。在 O/W 乳液的情况下，膜的性能是通过隔油率来评估的。化学需氧量测试用于分析渗透液中的油浓度并计算截留率。结果表明，与蒸馏水相比，O/W 处理通量下降。使用二甲基甲酰胺和N-甲基-2-吡咯烷酮的 SAN25 的水渗透率为 200 和 170 L m ^-2ħ ^-1，分别与290和210 L M渗透通量的值^-2 ħ ^-1使用SAN30获得。