净水厂改造中超滤工艺优化与工程应用

Ultrafiltration process optimization in water treatment plant updating reconstruction and its engineering application

近年来,超滤逐步在市政给水处理工程中得到推广应用,尤其在净水厂改造工程中发挥替代砂滤、强化过滤、生物膜拦截和纳滤与反渗透前处理等作用。通过对超滤与其他工艺的组合优化研究,总结超滤工艺应用的各种工艺流程,分析在净水厂改造工程中的应用特点,并介绍了改造工程实例,对生产运行中存在的问题进行了讨论。

In recent years,ultrafiltration（UF）has been applied gradually in municipal water treatment plant.Especially,they were used in their updating project to replace sand filters,enhanced filtration,and biofilm interception;meanwhile,they were also used as a pretreatment means before NF and RO.Based on study on UF process and its combination with other process,this paper summarized various processes of UF and analyzed its application characteristics in water plant updating project.In addition,this paper introduced its practical application in water treatment plant updating reconstruction and discussed existing problems in its practical operation.