Transient model of crossflow microfiltration

作者: Cecily A. Romero , Robert H. Davis

DOI: 10.1016/0009-2509(90)87076-5

关键词:

摘要: Abstract A theoretical model of crossflow microfiltration which includes the time-dependent decline permeate flux due to particle layer buildup is presented. The based on shear-induced hydrodynamic diffusion mechanism motion within a concentrated flowing near membrane surface, balancing convectively-driven particles toward surface. complete convective-diffusion equation satisfied when integrated across layer. This an extension earlier describes steady-state behavior microfilters and it possibility stagnant forming between surface method characteristics used solve partial differential governing variation thickness structure, with both time axial position. effects suspension concentration, size, shear rate other parameters are discussed.

参考文章(14)
M. C. Porter, Concentration Polarization with Membrane Ultrafiltration Industrial & Engineering Chemistry Product Research and Development. ,vol. 11, pp. 234- 248 ,(1972) , 10.1021/I360043A002
ANDREW L. ZYDNEY, CLARK K. COLTON, A CONCENTRATION POLARIZATION MODEL FOR THE FILTRATE FLUX IN CROSS-FLOW MICROFILTRATION OF PARTICULATE SUSPENSIONS Chemical Engineering Communications. ,vol. 47, pp. 1- 21 ,(1986) , 10.1080/00986448608911751
Robert H. Davis, David T. Leighton, Shear-induced transport of a particle layer along a porous wall Chemical Engineering Science. ,vol. 42, pp. 275- 281 ,(1987) , 10.1016/0009-2509(87)85057-1
David Leighton, Andreas Acrivos, The shear-induced migration of particles in concentrated suspensions Journal of Fluid Mechanics. ,vol. 181, pp. 415- 439 ,(1987) , 10.1017/S0022112087002155
EDWARD F. LEONARD, CHRISTIAN S. VASSILIEFF, THE DEPOSITION OF REJECTED MATTER IN MEMBRANE SEPARATION PROCESSES Chemical Engineering Communications. ,vol. 30, pp. 209- 217 ,(1984) , 10.1080/00986448408911128
F.W. Altena, G. Belfort, Lateral migration of spherical particles in porous flow channels: application to membrane filtration Chemical Engineering Science. ,vol. 39, pp. 343- 355 ,(1984) , 10.1016/0009-2509(84)80033-0
ROBERT H. DAVIS, STEPHEN A. BIRDSELL, HYDRODYNAMIC MODEL AND EXPERIMENTS FOR CROSSFLOW MICROFILTRATION Chemical Engineering Communications. ,vol. 49, pp. 217- 234 ,(1987) , 10.1080/00986448708911804
Cecily A. Romero, Robert H. Davis, Global model of crossflow microfiltration based on hydrodynamic particle diffusion Journal of Membrane Science. ,vol. 39, pp. 157- 185 ,(1988) , 10.1016/S0376-7388(00)80987-4