化学生物絮凝强化一级处理工艺的影响因素研究  

Affecting Factors of Enhanced Primary Treatment Process with Chemical and Biological Flocculation

作　　者：黄天寅[1,2] 夏四清[3] 

机构地区：[1]苏州科技学院环境科学与工程系,江苏苏州215011 [2]重庆大学三峡库区生态环境教育部重点实验室,重庆400045 [3]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《中国给水排水》2010年第7期19-21,26,共4页China Water & Wastewater

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.

关 键 词：化学生物絮凝 城市污水 强化一级处理 影响因素 

分 类 号：X703[环境科学与工程—环境工程]