NDLI: Resistance Coefficients of Polymer Membrane with Concentration Polarization

Content Provider	Springer Nature Link
Author	Ślęzak, Andrzej Grzegorczyn, Sławomir Batko, Kornelia M.
Copyright Year	2012
Abstract	The Kedem-Katchalsky equations, modified by means of symmetric transformations of Peusner thermodynamic networks, were applied to interpret the membrane transport in concentration polarization conditions. The results from the study demonstrate that the resistance coefficients counted for membrane transport of aqueous solutions of glucose through Nephrophan membrane in horizontal plane are nonlinearly dependent on mean concentration of glucose in the membrane $${(\bar{C})}$$ . It was also shown that the threshold value of concentration $${(\bar{C}_{cr})}$$ existed, and for $${\bar{C} > \bar{C}_{cr}}$$ , the resistance coefficients depend, while for $${\bar{C} < \bar{C}_{cr}}$$ , they do not depend on the membrane system configuration. Increase of mean glucose concentration in the membrane (in the range $${\bar{C} > \bar{C}_{cr})}$$ causes decrease of difference between resistance coefficients of the membrane system in homogeneous conditions (solutions mechanically stirred) and in conditions with hydrodynamic instabilities (configuration B). Besides increase of mean glucose concentration in the membrane (in the range $${\bar{C} > \bar{C}_{cr})}$$ causes increase of the difference between resistance coefficients for membrane system with concentration polarization without hydrodynamic instabilities (configuration A) and membrane system in homogeneous conditions.
Starting Page	151
Ending Page	170
Page Count	20
File Format	PDF
ISSN	01693913
Journal	Transport in Porous Media
Volume Number	95
Issue Number	1
e-ISSN	15731634
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-07-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Membrane transport Peusner’s network thermodynamics Kedem-Katchalsky equations Concentration polarization Resistance coefficients Civil Engineering Geotechnical Engineering & Applied Earth Sciences Classical Continuum Physics Hydrogeology Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Catalysis

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