Mass Transfer for Dialysis with Ultrafiltration Flux Declined in Cross-Flow Membrane Modules

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Title:	Mass Transfer for Dialysis with Ultrafiltration Flux Declined in Cross-Flow Membrane Modules
Authors:	Yeh, Ho-ming;Cheng, Tung-wen;Chen, Y. J.
Contributors:	淡江大學化學工程與材料工程學系
Keywords:	Dialysis;Ultrafiltration;Cross Flow;Membrane Separation
Date:	2000-06
Issue Date:	2011-10-24 01:36:03 (UTC+8)
Publisher:	The Society of Chemical Engineers, Japan
Abstract:	This study deals with the effect of an exponential-decay flux of ultrafiltration on the mass transfer rate of solute for dialysis in cross-flow membrane modules. The numerical method of orthogonal collocation was used to solve this problem. The calculated results of solute concentrations and separation efficiencies were analyzed under various operating conditions and decay coefficients of flux in ultrafiltration. The mass transfer rate is usually enhanced by the addition of the effect of ultrafiltration, but this effect decreases as the decay coefficient increases. A significant influence of the decay coefficient on the mass transfer rate appears when the solute transport is dominated by the effect of ultrafiltration, i.e. the conditions of lower dialysate flow rate, lower solute sieving coefficient, or lower overall mass transfer coefficient.
Relation:	Journal of chemical engineering of Japan 33(3), pp.440-448
DOI:	10.1252/jcej.33.440
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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