【摘要】 介绍了悬移式气水同时反冲洗方式的冲洗过程及其表现出的水力特征。分析了在反冲洗过程中气泡相在流化滤层中的主要行为，认为气泡高速浮升产生的泡振作用和气泡尾迹的混掺作用以及气泡在浮升过程中出现的尾迹效应是气水同时反冲洗效果较佳的主要原因。并推荐出不同品种滤料层的各项设计参数。更多还原

【Abstract】 Abstract The principles and hydraulic feature of suspended moving simultaneous air water backwashing of filters are presented in this paper.The behavior of air bubble at the fluidized filtration bed in the course of backwash has been discussed.It is considered that the synthetic effects of bubble oscillation,the mixing infiltration of bubble tail and the trail force of high speed upward moving air bubbles improve the performance of backwash of this unit operation.Also some design parameters for different filtrating media are recommended.更多还原