重力驱动微滤膜给水处理工艺特性与除污效能  

Characteristic and Pollutants Removal Efficiency of Gravity-driven Microfiltration Membrane Water Treatment Process

作　　者：宋丹[1] 刘彩虹 程巍 齐晶瑶 马军[1] SONG Dan;LIU Cai-hong;CHENG Wei;QI Jing-yao;MA Jun(State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 150090,China;Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment,Chongqing University,Chongqing 400044,China;Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China)

机构地区：[1]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090 [2]重庆大学三峡库区生态环境教育部重点实验室,重庆400044 [3]中国科学院生态环境研究中心,北京100085

出　　处：《中国给水排水》2020年第3期22-26,共5页China Water & Wastewater

摘　　要：采用浸没式重力驱动微滤膜系统处理松花江地表水,考察了不同重力下微滤膜通量的变化规律及对有机物、微生物和金属离子的去除效能。结果表明,提高重力驱动力可提升膜的初期通量,但长时间运行结果显示,较低重力驱动力反而对保持较高的稳定通量更为有利;浸没式重力驱动膜系统对地表水中的常规污染指标如浊度、UV254和细菌总数具有很好的去除效果,去除率分别可达99.8%、93.4%和98.6%以上;同时对典型金属离子的去除率也可达到90%以上,说明浸没式重力驱动微滤膜系统具有很好的抗污染性能和去除污染物能力,可用于以地表水为源水的饮用水净化中。The Songhua River surface water was treated by a submerged gravity-driven microfiltration membrane system,the change of microfiltration membrane flux under different gravities and the removal efficiency of organics,microorganisms and metal ions were investigated. The initial flux of the membrane could be increased by increasing the gravity driving pressure. However,it was found that the lower gravity driving pressure was more beneficial to maintain higher and stable flux during long-term operation. The submerged gravity-driven membrane system had a good removal effect on the conventional pollution indexes such as turbidity,UV254 and the total number of bacteria in the surface water,and the removal rate could reach above 99. 8%,93. 4% and 98. 6% respectively. Moreover,the removal rate of typical metal ions could also reach more than 90%. The results indicated that the submerged gravitydriven microfiltration membrane system had good anti-fouling performance and pollutant removal ability,which could be applied in the purification of drinking water with surface water as the source water.

关 键 词：重力驱动微滤膜 地表水 膜通量 除污效能 

分 类 号：TU991[建筑科学—市政工程]