污水处理厂旋流沉砂池的改造

Reconstruction of Rotational Flow Grit Chamber in Wastewater Treatment Plant

针对重庆市永川污水处理厂旋流沉砂池除砂量少、运行故障率高的问题,对其进行了技术改造,取消旋流器,增设导流板、中水射流管、吸砂喇叭口、放空系统,将分选区底部改为斜底,改变提砂气源,改造后除砂效率得到提高,污水处理厂的整体环境得到改善。

There were poor grit removal and high malfunction rate of rotational flow grit chamber in Yongchuan WWTP in Chongqing City.The rotational flow grit chamber was reconstructed by removing hydrocyclone,adding guide plate,water jet pipe,flared pipe and blowdown system,converting flat base into slope and changing air source.After the reconstruction,the efficiency of grit removal and the environment in the plant were improved.