【摘要】 随着对环境要求的日益严格,传统方法对废水中痕量重金属和溶解性有机物的去除已经不能满足需要或必须付出昂贵的代价才能达到要求.为此人们开发出了表面活性剂应用和超滤相结合的胶团强化超滤技术(MEUF).该技术能耗低,工艺简便,可以有效地去除工业废水中的低浓度金属离子和溶解性小分子有机物,具有很好的应用前景.本文对胶团强化超滤的原理,主要影响因素及表面活性剂和膜的选择做了介绍,综述了近年来胶团强化超滤应用的最新研究成果,并探讨了浓缩液和渗透液中表面活性剂的回收和回用.更多还原

【Abstract】 With continuing stringent environmental regulation,the traditional techniques are incapable of reducing the concentration of dissolved organics and heavy metals to the levels required by law or prohibitively expensive.Surfactant-based separation process such as micellar-enhanced ultrafiltration has been extensively proposed.Micellar-enhanced ultrafiltration has been demonstrated to be effective in removal of heavy metals and/or organic contaminants from wastewater stream.The process can be low energy cost and easily included in a whole process.Micellar-enhanced ultrafiltration has been shown to be a promising method for the removal of low-levels of heavy metal ions and organic compounds from industrial effluents.This paper introduces the working mechanism,main factors of MEUF and the selection of surfactant and membrane.The lasted study progress on the application of micellar-enhanced ultrafiltration is reviewed.The recovery and reuse of surfactant from the retentate and permeate are also discussed.更多还原