摘要
考察了高锰酸盐复合药剂(PPC)预氧化与臭氧预氧化的助凝除污染效果,结果表明,投加少量的PPC(1.5mg/L)即能获得显著的助凝除污染效果,不仅降低了出水浊度,而且提高了系统对有机污染物的去除率;低投量(1.8mg/L)臭氧能够提高系统对有机物的去除率,但没有表现出助凝效果,而且增加了出水浊度及铝、锰浓度。通过色质联机分析了水中小分子有机物的组成,并测定了胶体的表面电位,探讨了两种预氧化工艺的除污染特性。
Investigation was made on pre-oxidation of potassium permanganate composite (PPC) and ozone for their effect on coagulation aid and pollutants removal.The result showed that dosing small amount of PPC (1.5 mg/L) can improve significantly coagulation aid and pollutants removal efficiency;it can not only reduce turbidity in treated water,but also increase the pollutants removal rate.Low dosage of ozone (1.8 mg/L) can increase organic removal rate,but no coagulation aid is shown;in addition,it increases turbidity in treated water and raises concentration of aluminum and manganese.GC/MS analysis on micro-molecular organics composition and measurement for ζ potential were carried out to discuss the characteristics of pollutants removal by using the two pre-oxidation processes.
出处
《中国给水排水》
CAS
CSCD
北大核心
2004年第5期9-12,共4页
China Water & Wastewater
基金
国家自然科学基金资助项目(59825106)
关键词
低温低浊水
预氧化
高锰酸盐复合药剂
臭氧
low temperature and low turbidity water
pre-oxidation
potassium permanganate composite (PPC)
ozone
