Transport of Organic Electrolytes with Electrostatic and Steric-Hindrance Effects through Nanofiltration Membranes

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Masanori Togoh¹  Shin-ichi Nakao¹  Shoji Kimura¹  Toshinori Tsuru¹  Xiao-Lin Wang¹ 

[1] Department of Chemical System Engineering, Faculty of Engineering, The University of Tokyo

关键词: Membrane Separation;    Filtration;    Nanofiltration;    Charged Membrane;    Electrostatic Effect;    Steric-Hindrance Effect;   

DOI  :  10.1252/jcej.28.372

来源: Maruzen Company Ltd

【 摘 要 】

References(16)Cited-By(34)A new model that considers both the electrostatic and steric-hindrance effects based on the space-charge model and the steric-hindrance pore model has been proposed to evaluate the transport phenomena of an organic electrolyte across a nanofiltration membrane. The dependence of the membrane parameters, reflection coefficient and solute permeability on the electrostatic and steric-hindrance effects has been analyzed in the system of an organic electrolyte and a negatively charged nanofiltration membrane. This model has been verified in the system of a tracer organic electrolyte (sodium benzenesulfonate), a supporting salt (sodium chloride) and commercial nanofiltration membranes (Desal-5, NF-40, NTR7450 and G-20); the theoretical values of the membrane reflection coefficients agreed very well with the experimental results of them.

【 授权许可】

Unknown