摘要
以低浓度城市污水为处理对象,探讨了影响化学生物絮凝强化一级处理工艺除污效能的因素。以对TP、SS、COD和NH3-N的去除效果为评价指标,考察了絮凝剂PAFC投加量、污泥回流比和助凝剂PAM投加与否对工艺除污效能的影响。结果表明,PAFC的投量(以Al2O3计)为10.6 mg/L时,工艺的除污效果最好;控制污泥回流比为33.3%时,能获得有效的化学生物絮凝作用,而投加PAM对工艺的除污效能无显著改善作用。
The factors influencing the efficiency of enhanced primary treatment process with chemical and biological flocculation for treatment of low-concentration municipal wastewater were studied. The effects of PAFC dosage, sludge return ratio, addition and no addition of PAM on the removal efficiencies of TP, SS, COD and NH3 - N were investigated. The results show that the optimal effect can be achieved at PAFC dosage of 10.6 mg/L （ calculated as Al2O3 ）. Controlling the sludge return ratio at 33.3% can obtain effective chemical and biological flocculation. The addition of PAM has no evident effect on improving the removal efficiency of pollutants.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第7期19-21,26,共4页
China Water & Wastewater
关键词
化学生物絮凝
城市污水
强化一级处理
影响因素
chemical and biological flocculation
municipal wastewater
enhanced primary treatment
affecting factors
作者简介
黄天寅（1975-），男，江苏常熟人，博士，副教授，研究方向为水污染控制。电话：13962512379E—mail：huangtianyin@hotmail．com
