纳滤膜孔结构、荷电性质、分离机理及动电性质研究进展

The researches on the pore structure,charge property,seperation mechanism and electrokinetic phenomena of nanofiltration membranes

纳滤膜拥有介于反渗透膜和超滤膜之间的截留分子量,同时对无机盐的截留率随着盐的种类和浓度而改变,广泛应用于各种水净化处理和产品精制分离过程.文章从纳滤膜孔结构和荷电性质、纳滤膜分离机理及其模型、纳滤膜动电性质等三个方面对纳滤膜分离技术20多年来的基础及应用研究进展进行回顾和总结,简要分析了今后纳滤膜分离技术的发展方向及趋势.

As a promising separation technology, nanofiltration （NF） plays a more and more important role in various water purification and treatment as well as product separation processes. NF membranes have two typical features that is, sieving effect and electrostatic effect, and are called dense reserve osimosis membranes and ultrafiltration membranes. This paper summarized the progresses on the researches on the evaluation of pore structure and electrical property, the separation mechanism and modeling, as well as the electrokinetic phenomena of the NF membranes over the past two decades. Lastly brief words are mentioned the direction or tendency of the research and development on NF technology in future.