磁性离子交换树脂和超滤协同处理微污染水源水的研究  

RESEARCH ON THE MICRO-POLLUTED SOURCE WATER TREATMENT BY THE COMBINED MIEX AND UF PROCESS

作　　者：李文洋[1] 张朝晖[1,2] 张宏伟[1,2] 王亮[1,2] 赵赫[3] 苌城 

机构地区：[1]天津工业大学环境与化学工程学院,300387 [2]天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地,300387 [3]河北工业大学土木工程学院,天津300401

出　　处：《水处理技术》2014年第1期59-63,共5页Technology of Water Treatment

基　　金：国家自然科学基金(51138008;51108315;21206125);天津市科技支撑重点项目(11ZCGYSF01500)

摘　　要：研究了磁性离子交换树脂和超滤膜组合工艺对微污染水源水的协同净化性能,并对膜污染进行了分析。结果表明,MIEX对有机物有很好的去处效果,主要去除对象为分子质量低于3 k的腐殖质类有机物。MIEX+UF组合工艺对SUVA、CODMn和DOC的去除率分别为71.61%、60.34%和51.46%,出水浊度维持在0.1 NTU以下。三维荧光光谱显示,原水中的有机物主要为陆生腐殖质类物质,组合工艺对其有很好的去除效果。膜污染分析表明,MIEX预处理虽然对UF进水中的有机物具有很好的去除效率,但却不能有效减缓UF膜污染,运行过程中膜污染阻力仍然在膜过滤总阻力构成中占最大比例(46.75%)。因此。The combined purification performance of micro-polluted sotlrce water by magnetic ion exchange resin （MIEX） and ultrafiltratiou （UF） combined process was studied in this paper, and the effect of membrane fouling control was also analyzed. The experimental results showed that good removal ability for organic pollutant can be achieved by MIEX treatment, and the main removal part was the humic organics with molecular weight of less than 3 k. The removal efficiency of SUVA, CODMn and DOC were 71.61%, 60.34%, 51.46% respectively after treatment by the combined process of MIEX＋UF, and the effluent turbidity was maintained at 0.1 NTU. Three-dimensional fluorescence spectrum analysis showed that the main organics in the raw water was the humic substances formed by land organisms, and the combined process has a good removal effect for this kind of substance, Although the MIEX pretreatment has good removal efficiency for organics, it can hardly alleviate the membrane fouling. And the resistance analysis suggested the membrane fouling resistance still accounted for the largest proportion （46.75%） of the total resistance. Therefore, it is very important to take measures to alleviate the membrane fouling in order to increase the efficiency of the combined process.

关 键 词：MIEX 超滤 组合工艺 微污染水源水 膜污染 

分 类 号：TU991.2[建筑科学—市政工程]