摘要
通过混凝实验,观察混凝除磷与除浊的关系,考察混凝剂品种、pH对混凝除磷效果的影响,以及混凝对水中不同形态磷的去除效果.研究高锰酸钾复合药剂(PPC)及聚丙烯酰胺(PAM)的助凝除磷效果.结果表明:强化混凝可以有效提高混凝除磷的效果;聚铁混凝除磷效果明显好于聚铝和聚铝铁;3种混凝剂除磷最佳pH分别为:聚铁7.5,聚铝6.5,聚铝铁6.0;溶解性磷的去除总体上来说更加困难,但是当混凝剂投量增加到一定水平,溶解性磷也能得到有效去除;PPC与PAM均具有一定的助凝除磷效果,但PAM的用量和投加时间必须很好控制.
The relations between phosphorus removal and turbidity removal by coagulation are reviewed by laboratory experiments. The effects of coagulant types and pH value to removal performance of phosphorus with different forms are investigated. The coagulation aid effects of potassium permanganate composite （PPC） and polyacrylamide （PAM） on improving phosphorus removal are also studied. The results show that phosphorus removal efficiency is evidently improved by enhanced coagulation. The phosphorus removal efficiency of poly ferric chloride（ PFC ） is clearly better than poly aluminum chloride（ PAC ） and poly aluminum -ferric chloride （PAFC）. The optimum pH values for PFC, PAC and PAFC are 7.5,6.5 and 6. 0, respectively. It is more difficult to remove dissolved phosphorus generally, but the dissolved phosphorus can be effectively removed when coagulant dosage is increased to a certain level. PPC and PAM show a certain effects of phosphorus removal and coagulation aid, but the dosage and dosing time of PAM must be controlled correctly
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2007年第6期989-992,共4页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50378004)
国家高技术研究发展计划资助项目(863-2004AA601020)
中国博士后科学基金资助项目(2005038040)
关键词
聚铝
聚铁
聚铝铁
高锰酸钾复合药剂
聚丙烯酰胺
混凝
除磷
饮用水处理
poly aluminum chloride
poly ferric chloride
poly aluminum - ferric chloride
potassium permanganate composite
polyacrylamide
coagulation
phosphorus removal
drinking water treatment
