颗粒状大孔阴树脂去除有机物以及缓解膜污染的效果与机制  

Effects and Mechanism on Removing Organics and Reduction of Membrane Fouling Using Granular Macro-Porous Anion Exchange Resin in Drinking Water Treatment

作　　者：何欢[1] 董秉直[2] 许光红[1] 闫昭辉 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]同济大学长江水环境教育部重点实验室,上海200092 [3]陶氏化学(中国)有限公司,上海201203

出　　处：《环境科学》2014年第5期1824-1831,共8页Environmental Science

基　　金：国家水体污染控制与治理科技重大专项(2011ZX07410-002)

摘　　要：采用颗粒状大孔阴树脂和混凝作为微滤膜的预处理,考察它们去除有机物以及缓解膜污染的效果和机制.结果表明,树脂可有效去除中等和小分子的有机物,但对大分子有机物的去除有限;混凝可有效去除大分子有机物,但对中等和小分子有机物的去除有限.仅采用树脂作为预处理,虽然去除有机物效果较好,但缓解膜污染的作用有限;而混凝与树脂联用,不仅有效去除有机物,而且也有效缓解膜污染.A granular macro-porous anion exchange resin combined with coagulation was used as pretreatment of microfiltration membrane,and their effects and mechanism on removing organics and reduction of membrane fouling were evaluated. The results showed that resin could be effective in removing organics with medium and small molecular weight( Mr) but ineffective in removing organics with large Mr,while couagulation could significantly remove organics with large Mr,with a limited removal for organics with medium and small Mr. Using resin alone as pretreatment could be effective in removal of organics but limited in reduction of membrane fouling. With combination of coagulation and resin as pretreatment of microfiltration,not only organics could be removed effectively, but also membrane fouling could be reduced.

关 键 词：饮用水处理 颗粒状大孔阴树脂 微滤膜 膜污染 混凝 

分 类 号：X703[环境科学与工程—环境工程]