气浮滤池用于城市污水深度处理的研究

STUDIES ON ADVANCED TREATMENT OF MUNICIPAL WASTEWATER BY AIR FLOATATIONFILTER

针对城市污水处理厂二级出水中残留的悬浮微粒不易沉淀的特点，选用气浮十过滤的方法对二级出水进行深度处理。通过采用新型的竖向逆流型气浮池，提高了气浮的去除率。在气浮池后紧接好氧生物滤池，充分利用了气浮时附带产生的充氧曝气作用，在滤池中通过生化反应进一步去除水中的有机物质。

A process of air floatation tank and biofilter is taken to deeply remove nonsettled microparticles remaining in the effluent from a scondary municipal wastewater treatment works. The efficiency of floatation is improved by use of a new type of air floatation tank--vertical countercurrent floatation tank. And the follow--up aerobic biofilter can fully utilize dissolved oxygen provided by the preceding floatation tank to further biodegrade organics remained in the effuent.