城市污水回用技术中气水反冲洗滤池布水均匀性研究

在城市污水作为水资源回用的技术中，气水反冲洗滤池是重要的工艺过程，它对布水（ 气）均匀性的要求相当高，传统的支母管系穿孔管大阻力配水（ 气） 系统达不到如此高的要求．当采用不锈钢梯形绕丝布水（气） 装置后，可以使孔口微分为若干细缝隙布水（ 气），由于其加工精度可以得到有效的控制，使得Ｓ１ 值的相同性得以实现，经工程使用，达到了相当满意的布水（气）均匀性效果．

Research on the uniformity of water distribution in the filter of gas-water backwashing

Use of the trapezoid stainless steel wire-wound nozzle in the filter of gas-water backwashing when treating the city waste water,would divide the hole on the pipe system into many fine chinks for water distribution.It's manufacture accuracy may be effectivly controled,so the S 1 value can be equal.The enginnering practice has proved the effect of the uniforming of water distribution in the filter of gas-water backwashing.