高速纤维过滤技术在雨水径流污染治理中的实验探究

Experimental Study on Rain Water Runoff Pollution Treatment by Rapid Fiber Filtration Technology

以某环境敏感区域的雨水径流为研究对象,通过优化系统运行参数,探究以高速纤维过滤技术为核心的就地快速处理工艺在雨水径流污染治理中的处理效果。结果表明:在添加适量混凝药剂条件下,试验采用的处理工艺对雨水径流中的总磷(TP)、化学需氧量(COD)和悬浮固体(SS)均有较好的去除效果,TP、COD、SS的平均去除率分别大于55%、65%和72%;系统试验选用聚合氯化铝(PAC)作为混凝药剂时处理效果较好;在混凝药剂量为12 mg/L、过滤滤速为16.67 m/h、过滤周期在6—8 h时,系统整体运行效率较稳定,综合效益较优。

Explore the treatment effect of rapid fiber filtration technology in rainwater runoff pollution treatment by optimizing system operating parameters.The experimental water sample was taken from the rainwater runoff of a lake in southwest China.The results show that under the condition of adding appropriate coagulants,this treatment process has good removal effects on the total phosphorus(TP),the chemical oxygen demand(COD),and the Suspended solids(SS)in rainwater runoff.The average removal rate of TP is more than 55%,the average removal rate of COD is more than 65%,and the average removal rate of SS is more than 72%;The treatment effect was better when polyaluminum chloride(PAC)was used as a coagulant in this experiment;The operating efficiency of the system is relatively stable under the conditions of a coagulant dosage of 12 mg/L,a filtration rate of 16.67 m/h,and a filtration cycle of 6-8 h,and the comprehensive benefits are superior.