新型浮滤池处理微污染源水的研究

常规工艺对高藻、低浊微污染源水的处理效果较差,为了解决这个问题,将气浮与混凝、过滤技术相结合,开发出了一套新型浮滤池工艺（DAFF）,并以济南玉清湖水库水为处理对象进行中试,考察了对藻类及有机物的去除性能.试验结果表明：DAFF的处理效果明显优于常规工艺,对叶绿素a、高锰酸盐指数、UV254、浊度及氨氮的平均去除率分别为84.24%、59.76%、58.62%、85.2%、20.83%.该工艺结构紧凑、操作简便、占地面积小,适合新建的小水厂及老水厂的改造.

Dissolved Air Flotation-Filter Process for Treating Micropolluted Source Water

The conventional processes have limitations in treating the micropolluted source water with high algae and low turbidity. In order to resolve this problem, the technologies of the coagulation, dissolved air flotation and filtration were integrated into one process called Dissolved Air Flotation-Filter (DAFF). The functions of the process about removing algae and organic matters in the treatment of the water from the Yuqinghu Reservoir in Jinan, Shandong Province were studied. The results show that the removal rates are 84.24% for Chl-a , 59.76% for COD_ Mn, 58.62% for UV_ 254, 85.2% for turbidity and 20.83% for ammonia nitrogen with a significantly better treatment effect than that of the conventional processes. The new process has advantages of compact layout, simple operation and small occupancy area, and is suitable for newly constructed small waterworks and old waterworks to be renovated.