聚丙烯酰胺在常规处理工艺净水厂中的应用  

Application of Polyacrylamide in Conventional Water Treatment Plants

作　　者：李建勤 李祥林 李峥嵘 LI Jianqin;LI Xianglin;LI Zhengrong(Wuhu Huayan Water Service Co.,Ltd.,Wuhu 241000,China)

机构地区：[1]芜湖华衍水务有限公司,安徽芜湖241000

出　　处：《化工管理》2023年第32期142-145,共4页Chemical Engineering Management

摘　　要：文章针对聚合氯化铝混凝剂在常规处理工艺净水能力的局限性,通过实验室混凝搅拌实验,对聚丙烯酰胺作为助凝剂的离子型选择、最优加注量和最佳投加点进行小样试验研究。结果表明:采用阴离子型聚丙烯酰胺效果较好,加注点在PAC投加点2 min后,投加量在0.04~0.12 mg/L之间。在此基础上,在芜湖市某水厂进行实际生产应用表明,聚丙烯酰胺助凝效果明显,在高负荷供水量情况下出厂水浊度达到0.1 NTU以下。In response to the limitations of the water purification ability of polyaluminum chloride coagulan,laboratory experiments were conducted to study the types,injection points,and dosage of polyacrylamide coagulants.The results showed that the use of anionic polyacrylamide has a better effect,with the dosage ranging from 0.04 to 0.12 mg/L after two minutes at the PAC dosing point.On this basis,a production test was conducted at a water plant in Wuhu City,indicating that polyacrylamide has a significant coagulation aid effect,with the factory water reaching below 0.1 NTU under high load water supply conditions.

关 键 词：聚丙烯酰胺 助凝剂 净水工艺 高负荷供水 

分 类 号：TQ317[化学工程—高聚物工业]