The optimal design study on new flofilter water-purification devices

The water quality characteristics of Jinan Queshan reservoir(all water from the Yellow River) is low in temperature and in turbidity,high in algae.Based on those characteristics,the flofilter,which joined flotation with filtration,was designed with many advantages,such as less area,no flocculation tank,flexible operation,coordinated water purification of flotation and filtration,etc.To enhance the effect of water purification,the system of pressurized dissolved air flotation was optimal in design.In the early running,the average removal rates of algae,chla were 76.31%,71.26% in the high algae phase.And in the conditions of low temperature and low turbidity,the average removal rates of turbidity,CODMn,UV254 were 86.49%,43.46%,63.51%,and the flofilter showed higher water purification effect.