摘要
根据石英砂均质滤料层气水反冲洗时不允许出现水力分级现象的特点 ,应用滤料层有效应力的概念和微小孔口注入液体压缩空气压力与空气流量的关系 ,推导建立了石英砂均质滤料层气水同时反冲洗时气洗强度与水洗强度关系的数学模型。
At course of air-water backwashing operation of uniform quartz sand filtering media, any hydraulic grading of filtering material will not be allowed. Under this precondition, the mathematical model of air water backwashing for uniform quartz sand filtrating media was established to determine the relationship of air intensity and water intensity in backwashing course. This was deduced on the concept of effective stress of filtering layer and the relation between air flow and air pressure caused by the liquid pouring through a small pore.
出处
《给水排水》
CSCD
北大核心
2002年第8期26-28,共3页
Water & Wastewater Engineering
