摘要
针对太湖流域地区的夏季含藻水源水采用了投加高锰酸钾预氧化、高锰酸盐复合药剂(PPC)氧化助凝、聚丙烯酰胺(PAM)助凝、加碱调整pH值、聚硫氯化铝(PACS)混凝和助凝等几种处理方法,并对药剂投加条件等进行了研究。生产试验结果表明,投加高锰酸钾预氧化对藻类和CODMn的最高去除率分别为84.3%和24.1%。烧杯搅拌试验结果表明,PAM强化助凝、加碱调整pH值和PPC氧化助凝三种处理技术对含藻水的处理效果较佳,其作为应急工艺运用到生产上的可操作性较强。
The treatment conditions were investigated for the algae-laden source water in Taihu Lake watershed in summer,including preoxidation with potassium permanganate,aid to the coagulation with potassium permanganate composite(PPC) and polyacrylamide(PAM),alkali for pH adjustment,coagulation and aid to the coagulation with polyaluminium sulfate chloride(FPAC).The full-scale test result showed that potassium permanganate,as a pre-oxidation agent,had a better efficiency of the highest removal of algae and CODMn,84.3% and 24.1% respectively.Jar test result showed that three agents,PAM,alkali and PPC,had better efficiency for treatment of algae-laden water and they were suitable to be used in production for emergency case.
出处
《供水技术》
2008年第3期24-28,共5页
Water Technology
关键词
高藻水
预氧化
助凝
pH
浊度
high algae-laden water
preoxidation
aid to the coagulation
pH
turbidity
