聚合硫酸铁铝在污水处理厂二级出水处理中的应用  

Application of polymeric aluminum ferric sulfate to the treatment of secondary effluent in a wastewater treatment plant

作　　者：蒋贞贞[1] 朱俊任[2] 

机构地区：[1]重庆工程职业技术学院,重庆400037 [2]重庆城市管理职业学院,重庆401331

出　　处：《工业水处理》2014年第7期27-30,共4页Industrial Water Treatment

基　　金：国家自然科学基金项目(51078366);重庆工程职业技术院院级重点课题(KJA201301)

摘　　要：以重庆大渡口污水处理厂的二级出水为考察对象,研究了自制聚合硫酸铝铁(PAFS)投加量、水体初始pH对污水处理厂二级出水的TP、NH3-N去除效果的影响。研究表明:当PAFS投加质量浓度为13 mg/L时,剩余TP质量浓度为0.094 mg/L,达到污水排放一级A标准,同时NH3-N去除率为24.8%。与市售混凝剂PAFC、PAC、PFS相比,PAFS具有较好的混凝效果和较低的投加量,同时PAFS还具有更强的电荷中和和吸附架桥能力。The secondary effluent of Dadukou Wastewater Treatment Plant in Chongqing has been investigated.The effects of the dosage of self-made polymeric aluminum ferric sulfate（PAFS）,and initial pH of water body on the removing effectiveness of total phosphorus（TP） and ammonia nitrogen（NH3-N） from the secondary effluent in the wastewater treatment plant are studied.The research results show that when the mass concentration of PAFS is 13mg/L,the residual TP mass concentration is 0.094 mg/L,the first class A wastewater discharge standard can be reached.Meanwhile NH3-N removing rate reaches 24.8%.Compared with PAFC,PAC and PFS which are sold in markets,PAFC has higher coagulation effectiveness,and lower dosages.Furthermore,PAFC has stronger charge neutralization and adsorption bridging capacities.

关 键 词：聚合硫酸铁铝 混凝 二级出水 生活污水 

分 类 号：X703[环境科学与工程—环境工程]