%0 Conference Paper
%A Park, Gunwoo
%A Naegele, Gerhard
%T Modeling concentration polarization and fouling layers in cross-flow ultrafiltration
%M FZJ-2021-03474
%D 2021
%X We present a boundary layer approximation (BLA) method for calculating the concentration-polarization (CP) layer and dispersion flow in crossflow ultrafiltration with a cylindrical membrane [1]. Results are discussed for various feed dispersions of colloidal particles, namely hard spheres, charge-stabilized particles [2], solvent-permeable non-ionic microgels [3, 4], and deswelling ionic microgels [5]. State-of-the-art methods are used for the gradient diffusion coefficient and viscosity entering the calculation of filtration profiles [3, 5]. We show that the BLA profiles are in quantitative agreement with predictions by a finite-element method [1]. The BLA results are compared with predictions by a similarity solution [4]. The BLA method is extended to conditions where a filter cake is formed at the membrane, with permeate flux results presented for a hard-sphere system [6].
%B The 25th International Congress of Theoretical and Applied Mechanics
%C 22 Aug 2021 - 27 Aug 2021, Milano (Virtual) (Italy)
Y2 22 Aug 2021 - 27 Aug 2021
M2 Milano (Virtual), Italy
%F PUB:(DE-HGF)6
%9 Conference Presentation
%U https://juser.fz-juelich.de/record/894912