超滤—纳滤双膜工艺处理微污染水源水中试研究  

A pilot study for the treatment of micro-polluted water by ultrafiltration-nanofiltration process

作　　者：党敏 朱学武[2] 杜星[2] 瞿芳术[2] 梁恒[2] 李圭白[2] Dang Min Zhu Xuewu Du Xing Qu Fangshu Liang Heng Li Guibai(CSCECAECOM Consultants Co. ,Ltd. , Lanzhou 730001, China School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China)

机构地区：[1]中国市政工程西北设计研究院有限公司,兰州730001 [2]哈尔滨工业大学市政环境工程学院,哈尔滨150090

出　　处：《给水排水》2017年第1期44-48,共5页Water & Wastewater Engineering

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07404-003)

摘　　要：南四湖水呈现微污染的水质特点,给常规工艺带来较大的处理难度,为保障饮用水水质,采用超滤-纳滤双膜工艺进行中试研究。结果表明:纳滤膜在不同季节时对有机物保持稳定的去除能力,出水中COD_(Mn)、UV_(254)、DOC含量均低于0.7mg/L、0.005cm-1、0mg/L;常规和超滤工艺对水中无机盐及单价离子几乎没有去除能力,纳滤膜可将水中的无机盐、单价离子和电导率去除90%以上;通过三维荧光分析,纳滤膜对芳香族蛋白质、类富里酸和类溶解性微生物代谢产物有很好的去除效果。The water quality of the Nansi lake is characterized as micro-polluted, which brings large processing difficulty to the conventional process. To ensure the drinking water quality, ultra- filtration-nanofiltration membrane technology was used and tested in this pilot study. The results showed that nanofiltration could maintain a stable removal of organic matter in different seasons, with CODMn, UV254 and DOC in the produced water always below 0. 7 mg/L, 0. 005 cm^-1 and 0 mg/L respectively. Conventional process and ultrafiltration almost had no ability in removing inorganic salts and monovalent ions, while nanofiltration could remove inorganic salts, monovalent ions, and conductivity of the water by more than 90 %. Through three-dimensional fluorescence image analysis, nanofiltration had good capability in removing aromatic proteins, fulvic-like acids, and soluble microbial products （SMP）.

关 键 词：饮用水 预处理 超滤 纳滤 水质安全 微污染 

分 类 号：TU991.2[建筑科学—市政工程]