摘要：

进行中试试验考察了污泥回流—超滤组合工艺处理高藻期水库水的除污染效能和膜污染状况。试验结果表明，组合工艺对浊度、CODMn、UV254、藻类的去除效果要优于水厂常规处理工艺；污泥回流预处理可以使膜运行稳定，膜前压力在较长时间内保持恒定；该组合工艺可以作为高藻期水库水处理的一种有效方法。

关键词: 超滤膜, 污泥回流, 藻类, 膜污染

Abstract:

The pollution removal effect and membrane pollution status of reservoir water that has high algae content have been investigated. The water has been treated by the combined process of sludge reflow and ultrafiltration through pilot study. The results show that the combined process has more advantages than traditional water treatment in regard to the removal rates of turbidity, COD_Mn, UV₂₅₄ and algae. The pretreatment of sludge reflow could make the running of membrane stable and make the pressure preceding the membrane invariable for a long time. The combined process could be used as an efficient method of treating reservoir water having high algae content.

Key words: ultrafiltration membrane, sludge reflow, algae, membrane pollution

中图分类号: 

• TQ028.8