20180710_progress in transport theory and characterization method of Reverse Osmosis...

1. Title, Journal and Authors

Title : Progress in transport theory and characterization method of Reverse Osmosis (RO) membrane in past fifty years

Journal : Desalination 434 (2018) 2-11

Authors : Ahmad Fauzi Ismaila, Takeshi Matsuurab,*

a Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia

b Department of chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada


2. Summary


This review paper introduces the progress in membrane characterization and transport theory in historical perspective. Depending on presence or absence of pores at the top dense layer of the RO membrane, there are different transport mechanisms and models such as solution-diffusion mechanism and preferential sorption-capillary flow(PS-CF) model. This presence or absence of pores has revealed by characterization methods such as Small-Angle Neutron Scattering(SANS) and Positron annihilation spectroscopy(PALS). And the advanced transport study by molecular dynamics simulation came to conclude that there are bimodal pore size distributions, the pore sizes of which correspond to those of network and aggregate pores. As for the membrane transport, more precise information on the membrane structure and the material transport through the membrane are needed.




3. Contact


Sora Shin / Ph.D. program


Environmental Systems Engineering Lab.


School of Earth Sciences & Environmental Engineering


Gwangju Institute of Science and Technology


1 Oryong-dong Buk-gu Gwangju, 500-712, Korea




Phone : +82-10-8796-0728


E-mail : sorashin@gist.ac.kr

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