膜分离技术在印染废水分质处理与分段回用中的应用  

Membrane separation technologies for segregated pretreatment and resource recycling of printing and dyeing wastewaters

作　　者：陈伟[1] 佟玲[1] 陈文清[1] 杜宗良 

机构地区：[1]四川大学建筑与环境学院,四川成都610065 [2]川大-日立环境应用技术中心,四川成都610065

出　　处：《环境污染与防治》2008年第7期62-66,共5页Environmental Pollution & Control

基　　金：四川省国际科技合作项目(No.2008HH0012);四川大学与日立公司合作研究项目(No.07H372)

摘　　要：印染废水具有水量大、种类多、色度高、成分复杂和污染严重等特点,如果将各部分废水混合后再处理,很难找到合适的解决工艺,因此应采取分质处理和分段回用的方法,膜分离技术在这方面有较强的针对性。基于近年的文献调研,综述了膜分离技术处理退浆、洗毛和染色等废水及回收聚乙烯醇(PVA)、羊毛脂、染料等资源的研究情况,主要讨论了膜材料、膜孔径以及运行工艺条件等因素对印染废水处理效果的影响。Printing and dyeing wastewaters of the textile industry are high volume, heavily polluted wastewaters containing many color agents and persistent organic contaminants. It is often very difficult to find a treatment process that can adequately treat the combined wastewater of a textile plant. Segregated pretreatment of some printing and dyeing wastewater streams and/or recycling of valuable resources of the wastewaters are often advantageous. The paper presented the fundamentals of four membrane technologies （micro filtration, ultrafiltration, nanofiltration and reverses osmosis） focusing on their potential applications in treating textile wastewaters. It also presented several literature cases of applying select membrane technologies for segregated pretreatment of dyeing, desizing and wool scouring wastewaters and for recycling PVA, lanolin and dyestuff present in textile wastewaters. The effects of such important factors as the membrane construction and materials, membrane pore size, membrane contamination and operating conditions on membrane treatment performance were reviewed and discussed.

关 键 词：膜分离技术 印染废水 分质处理 回用 

分 类 号：X791[环境科学与工程—环境工程] TQ028.8[化学工程]