Abstract:

The study is based on the pilot test of the treatment of the secondary effluent in a wastewater treatment plant, Hebei Xingtai by using the BAF+highly efficient coagulation and sedimentation combined process. The results show that after the secondary effluent is treated by the combined technology, the average removal rates of COD _Cr, turbidity and ammonia-nitrogen are 63.4%-69.2%, 91.8%-95.4%, 90.5%-95.9%respectively, which can meet the needs of circulating cooling water quality in power plants.

Key words: biological aerated filter, highly efficient coagulation and sedimentation, circulating cooling water, secondary effluent

摘要：

采用曝气生物滤池+高效混凝沉淀组合工艺对河北邢台某污水处理厂的二级出水进行了回用中试研究。研究表明:二级出水经组合工艺处理后,COD _Cr的平均去除率为63.4%～69.2%,浊度的平均去除率为91.8%～95.4%,氨氮的平均去除率为90.5%～95.9%,处理出水可以满足电厂循环冷却水水质要求。

关键词: 曝气生物滤池, 高效混凝沉淀, 循环冷却水, 二级出水

CLC Number: 

• TM621.8