TY  - CONF
AU  - Park, Gunwoo
AU  - Naegele, Gerhard
TI  - Modeling concentration polarization and fouling layers in cross-flow ultrafiltration
M1  - FZJ-2021-03474
PY  - 2021
AB  - 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].
T2  - The 25th International Congress of Theoretical and Applied Mechanics
CY  - 22 Aug 2021 - 27 Aug 2021, Milano (Virtual) (Italy)
Y2  - 22 Aug 2021 - 27 Aug 2021
M2  - Milano (Virtual), Italy
LB  - PUB:(DE-HGF)6
UR  - https://juser.fz-juelich.de/record/894912
ER  -