Model of steady-state ultrafiltration of colloidal suspension with formation of non-Newtonian concentration polarization layer and compressible deposit under a laminar cross-flow - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Conference Papers Year : 2023

Model of steady-state ultrafiltration of colloidal suspension with formation of non-Newtonian concentration polarization layer and compressible deposit under a laminar cross-flow

Abstract

The present paper is devoted to the modelling of the steady-state cross-flow filtration of Brownian suspension that results in formation of concentration polarization (CP) layer, which can exhibit non-Newtonian rheological properties (e.g., shear thinning),that is optionally followed by formation of compressible deposit (a gel having a yield stress that exceeds an applied wall shear stress in the filter channel). The model development was started in our previous work (Loginov et al., 2021), however, this paper only described filtration under the limiting flux conditions in a short filtration (when the fully gel covers the membrane surface and the transmembrane pressure is constant along the filter channel). In the present paper we provide a full model, which accounts for the transmembrane pressure distribution along the filter channel, is applicable for sub-critical filtration conditions (before the gel formation), and accounts for the gel appearance (between the critical and limiting filtration conditions). Here, for readers’ convenience, we recall the model assumptions and the model development, which are partially published in (Loginov et al., 2021).
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Dates and versions

hal-04001707 , version 1 (23-02-2023)

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  • HAL Id : hal-04001707 , version 1

Cite

Hossein Gholamian, Maksym Loginov, Geneviève Gésan-Guiziou. Model of steady-state ultrafiltration of colloidal suspension with formation of non-Newtonian concentration polarization layer and compressible deposit under a laminar cross-flow. FILTECH 2023, Filtech Exhibitions Germany, Feb 2023, Cologne, Germany. ⟨hal-04001707⟩

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