摘要
指出过滤对灭活病毒和去除病原原生动物以保障饮用水的卫生安全起着特别重要的作用 ;提出用特定微生物检测方法或浊度检测方法监控滤后水的不可靠性 ,用颗粒计数和检测技术对滤后水质进行监控更为有效 ;强化混凝、投加助滤剂能显著提高与病原原生动物尺寸相当的颗粒的去除率 ,从而提高滤后水的卫生安全性 ;排放初滤水 ,对反冲洗水进行混凝沉淀预处理后再回收 。
It is pointed out that there is a special important effect of filtration process on virus inactivation and pathogenic protozoan removal to ensure the hygienic safety of drinking water, and that it is more effective to apply the particle counting and monitoring techniques to monitor and control the quality of filtered water because of the unreliability of specified microbial monitoring and turbidity monitoring methods with filtered water. The removal efficiency of the particles, which sizes are equal to pathogenic protozoan, is increased with enhanced coagulation and addition of polymer filtration aid to improve hygienic safety of filtered water. The microbiological safety of filtered water can be improved by discharging initial filtered water and recovering backwash water after coagulation and sedimentation pretreatment.
出处
《给水排水》
CSCD
北大核心
2003年第6期22-26,共5页
Water & Wastewater Engineering
基金
国家自然科学基金资助项目 (50 0 780 1 7)
