采用聚砜中空纤维超滤膜,十二烷基硫酸钠(SDS)、十二烷基苯磺酸钠(SDBS)为表面活性剂,对含锰废水进行胶团强化超滤.研究了运行时间、表面活性剂浓度、膜操作压力、溶液pH、溶液中电解质等因素对该工艺的影响,以及化学清洗的效果.结果表明,SDS和SDBS对锰都有较好的去除效果,去除率都在92%以上,化学清洗能够有效清除膜表面及膜孔内的沉积物.但该工艺不适用于强酸性废水,电解质的存在会降低截留率.
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