Application of Nanofiltration and its Fouling Control

The characteristics of nanofiltration membrane, especially its separation performance were introduced and its application in water treatment, food industry, biochemical industry, medicine industry, and chemical industry are summarized.Besides, four methods for membrane fouling control in nanofiltration, including cleaning, changing properties of solution, improving operating methods and modifying the properties of nanofiltration membrane surface, were compared.It was pointed out that the future research directions will involve transfer mechanisms, new materials of nanofiltration membranes,integrated technology and so on.