% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@INPROCEEDINGS{Roa:187765,
author = {Roa, Rafael and Zholkovskiy, Emiliy K. and Naegele,
Gerhard},
title = {{U}ltrafiltration of permeable hard-sphere suspensions},
reportid = {FZJ-2015-01347},
year = {2014},
abstract = {Membrane ultrafiltration is a pressure driven process
useful for the separation of brownian par- ticles, like
small colloids or nanoparticles, from a solvent or smaller
solutes. This process is of high importance for the
concentration of protein or small microgel suspensions. In
these systems, concentration polarization determines the
permeate flux (Figure 1). Concentration polarization is the
build-up of solute at the membrane surface due to
convective-diffusive trans- port of solute in the boundary
layer. The efficiency of the separation process is thus
strongly dependent on the hydrodynamic conditions, membrane
porosity and colloidal interactions.We present a macroscopic
model for cross-flow ultrafiltration, where the suspension
is flowing tangentially over the membrane surface. We study
filtration of suspensions of neutral permeable particles
[1]. The influence of the nature of the particles is
reflected through the transport prop- erties of the
suspension, such as the concentration-dependent collective
diffusion coefficient and the effective suspension viscosity
[2,3]. We analyze the efficiency of the filtration process
by studying the concentration polarization layer and the
permeate flux at different operating conditions (applied
transmembrane pressure and shear rate).References[1] R. Roa,
E. K. Zholkovskiy and G. Nägele, to be submitted.[2] G. C.
Abade, B. Cichocki, M. L. Ekiel-Jez ̇ewska, G. Nägele and
E. Wajnryb, J. Chem.Phys. 136, 104902, (2012).[3] E. K.
Zholkovskiy, V. N. Shilov, J. H. Masliyah, and M. P.
Bondarenko, Can. J. Chem. Eng. 85, 701, (2007).},
month = {Nov},
date = {2014-11-11},
organization = {Jülich Soft Matter Days 2014, Bad
Honnef (Germany), 11 Nov 2014 - 14 Nov
2014},
subtyp = {After Call},
cin = {ICS-3},
cid = {I:(DE-Juel1)ICS-3-20110106},
pnm = {451 - Soft Matter Composites (POF2-451)},
pid = {G:(DE-HGF)POF2-451},
typ = {PUB:(DE-HGF)24},
url = {https://juser.fz-juelich.de/record/187765},
}