【摘要】 以十六烷基氯化吡啶 (CPC)作为表面活性剂 ,利用聚醚酰亚胺 (PEI)中空纤维超滤膜 ,对含氯苯废水进行了胶束强化超滤 (MEUF)研究 ,讨论了 CPC浓度对氯苯脱除的影响 ,以及料液流速、操作压力和操作时间对膜污染的影响。在 CPC浓度 (Cf)为 3 .1 g/L～ 1 8.6 g/L的范围内 ,氯苯浓度为 0 .45 g/L时 ,CPC的截留率可大于 95 % ,而氯苯的脱除率可达 98.0 %以上 ,渗透通量可达 1 .0× 1 0 -10 m3/m2·s·Pa。采用去离子水对膜清洗 1 h后 ,膜纯水通量恢复率可达 95 %。更多还原

【Abstract】 Using hexadecylpyridinium chloride(CPC) as the surfactant, chlorobenzene as an organic pollutant to be separated, and the removal of chlorobenzene in wastewater stream was investigated by micellar-enhanced ultrafiltration(MEUF) with hollow fiber polyetherimide ultrafiltration membranes. The effect of CPC concentrations on the chlorobenzene removal and the effects of flow rates, operation pressures and operation time on membrane fouling were discussed. Within CPC concentrations of 3.1g/L～18.6g/L, the rejection rate of the surfactant (CPC) was more than 95%, the rejection of cholrobenbene was 98.0% and the permeation flux was 1.0×10-10m 3/m 2·s·Pa as the chlorobenzene concentration was 0.45g/L. After the membranes were cleaned for one hour by the deionized water, the recovery rate of pure water permeation flux reached to 95%.更多还原