"Membrane"Magic:Ugly Duckling(Sewage)Into White Swan(Water)-The Preparation and Separation Performance Test of Nanofiltration Membrane
Membrane separation,as a cutting-edge separation technology,is the key to achieve goal of the clean water and national green development.In this experiment,nanofiltration membrane separation technology as the representative,was demonstrated the membrane preparation method and separation performance on sodium sulfate and different dye waste water(Congo red,methyl blue,reactive black and Victoria blue dye wastewater)separation performance,for primary and middle school students and the general public science.The operation of this experiment is simple.Nanofiltration membrane could be prepared by simple"soaking","drying"and"drying".In addition,the nanofiltration membrane separation test device can be self-assembled,and strong operability.Finally,the separation phenomenon of nanofiltration membrane is obvious,which is very interesting.With the demonstration of the experimental process:on the one hand,let the public understand the preparation method of nanofiltration membrane and its separation principle;On the other hand,it will help deepen the public's understanding of such important concepts as"Green mountains and clear water are equal to mountains of gold and silver"and"Green development".
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