超滤膜技术处理地表水的运行参数优化  

Optimization of Operation Parameters of UF Membrane Process for Surface Water Treatment

作　　者：陶辉[1,2] 卜紫婧 陈卫[1,2] 王伦 TAO Hui;BU Zi-jing;CHEN Wei;WANG Lun(Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes < Ministry of Education >, Hohai University, Nanjing 210098 , China;College of Environment, Hohai University, Nanjing 210098 , China)

机构地区：[1]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [2]河海大学环境学院,江苏南京210098

出　　处：《中国给水排水》2019年第5期8-11,18,共5页China Water & Wastewater

摘　　要：针对超滤工艺处理地表水的物理反洗条件进行优化,考察不同运行条件对超滤膜污染的控制效果,从而确定超滤膜处理地表原水的最优运行参数。结果表明:随着超滤膜运行通量的增加,跨膜压差的增长加快。在20和25L/(m^2·h)通量下处理地表原水,反冲洗强度为过滤通量的2倍、曝气强度达到80～100 m^3/(m^2·h)时,超滤膜处于最佳运行状态。The backwashing conditions of ultrafiltration ( UF) membrane process for surface water treatment were optimized. The membrane fouling under different operation conditions was examined to determine the optimal operation parameters of UF membrane. The results showed that with the increase of operating flux of the UF membrane, the growth of transmembrane pressure ( TMP) accelerated. When surface raw water was treated at fluxes of 20 L/(m^2 ·h) and 25 L/(m^2· h), the backwashing intensity was twice the filtration flux and the aeration intensity reached 80 - 100 m^3/(m^2 · h), the UF membrane was in optimal operation.

关 键 词：超滤 运行通量 跨膜压差 膜污染 反冲洗 曝气 

分 类 号：TU991[建筑科学—市政工程]