采用高锰酸钾预氧化/粉末活性炭吸附/混凝气浮/超滤组合工艺处理微污染水源水，实验结果显示超滤前处理工艺对浊度、藻类、CODMn和UV254的去除率分别为91.7％、90.6％、45.9％和19.2％，超滤系统对上述指标的去除率分别为98.8％、84.9％、22.4％、3.1％，对NH3-N没有明显的去除效果。组合工艺出水主要水质指标均稳定达到《生活饮用水卫生标准》（GB5749-2006）指标限值，可作为现有水厂升级改造的推荐工艺。

In this study, potassium permanganate pre-oxidation / powdered activated carbon adsorption / flotation / ultrafiltration combined process was used for treating micro-polluted source water. The experimental results show that treated by potassium permanganate pre-oxidation / powdered activated carbon adsorption / flotation the removal rate on the turbidity, algae, CODMn and UV254 were 91.7%, 90.6%, 45.9% and 19.2% respectively. The removal rate of ultrafiltration unit on the turbidity, algae, CODMn and UV254 were 98.8%, 84.9%, 22.4%, 3.1% respectively. The NH3-N removal efficiency is not obvious. The water quality treated by the combined process can reach "sanitary standard for drinking water" (GB5749-2006) stably, and such a combined process can be recommended as the process for upgrading the existing water plant.

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