单层滤料直接过滤截污特征与反冲洗效果研究  

Study on Intercept Characteristic of Direct Filtration and Effect of Backwash for Single-layer Filtering Medium

作　　者：周慧芳[1] 童祯恭[2] 唐朝春[2] 夏相华[3] 戴红玲[2] 

机构地区：[1]华东交通大学职业技术学院,江西南昌330013 [2]华东交通大学土木建筑学院,江西南昌330013 [3]南昌铁路局鹰潭水电段,江西鹰潭335500

出　　处：《南方冶金学院学报》2005年第1期43-46,共4页Journal of Southern Institute of Metallurgy

摘　　要：以单层滤料直接过滤为例,测试分析滤层中水头损失的变化规律,结果表明,滤池中绝大部分悬浮颗粒均被截留在表层滤料中,用少量空气先冲洗表层滤料,再用少量水反冲洗滤层,可以取得满意的冲洗效果.Based on the example of direct filtration of single-layer filtering medium , the change law of head loss in the filter layer is analyzed. The result show that the majority of suspended solids in the filter are lived in the surface filtering medium. A satisfying effect can be achieved by a new method that firstly small quality of air is used to wash surface filtering medium and then small quality of water is used to backwash filtering medium repeatealy.

关 键 词：单层滤料 截污 反冲洗 

分 类 号：TU991.24[建筑科学—市政工程]