摘要
以硫酸铝为混凝剂,对上海合流污水进行了混凝处理研究。实验采用阳离子型聚丙烯酰胺(PAM)、聚乙烯醇(PVA)、一种自制的有机高分子聚合物(AN)以及活化硅胶(AS)作为助凝剂,研究了不同硫酸铝投加量以及硫酸铝剂量相同条件下各种助凝剂投加量的混凝处理效果。研究结果表明,采用硫酸铝为混凝剂的处理工艺可以有效去除合流污水中的SS、COD、TP和PO43--P。同时PAM、PVA以及AN均有助凝作用,而AS助凝效果不明显。
Contaminants removal in the coagulation process using aluminum sulfate and coagulant aids were studied in the combined sewage in Shanghai,considering its large quality and relative low content of contaminants.Some organic and inorganic products were used as coagulant aids:cationic polyacrylamide(PAM),polyvinyl alcohol(PVA),a new kind of polyelectrolyte made by ourselves(AN)and activated silica(AS).Performances were measured under optimum conditions for the products used.The results showed that the coagulation process using aluminum sulfate could provide a satisfying reduction of suspended solid(SS),chemical oxygen demand(COD),total phosphorus(TP)and orthophosphate(PO 43- -P).PAM,PVA and AN are helpful to the coagulation but AS has no effect.
出处
《苏州科技学院学报（工程技术版）》
CAS
2004年第2期6-10,共5页
Journal of Suzhou University of Science and Technology （Engineering and Technology）
基金
国家"863"高技术研究发展计划资助项目(2002AA601320)
关键词
混凝
硫酸铝
助凝剂
合流污水
烧杯试验
coagulation
aluminum sulfate
coagulant aids
combined sewage
jar test
