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Pore cross-talk in colloidal filtration

Liot, Olivier and Singh, Akash and Bacchin, Patrice and Duru, Paul and Morris, Jeffrey and Joseph, Pierre Pore cross-talk in colloidal filtration. (2018) Scientific Reports, 8 (12460). 1-7. ISSN 2045-2322

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Official URL: http://doi.org/10.1038/s41598-018-30389-7

Abstract

Blockage of pores by particles is found in many processes, including filtration and oil extraction. We present filtration experiments through a linear array of ten channels with one dimension which is sub-micron, through which a dilute dispersion of Brownian polystyrene spheres flows under the action of a fixed pressure drop. The growth rate of a clog formed by particles at a pore entrance systematically increases with the number of already saturated (entirely clogged) pores, indicating that there is an interaction or “cross-talk” between the pores. This observation is interpreted based on a phenomenological model, stating that a diffusive redistribution of particles occurs along the membrane, from clogged to free pores. This one-dimensional model could be extended to two-dimensional membranes.

Item Type:Article
HAL Id:hal-01865363
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > City University of New-York - CUNY (USA)
Laboratory name:
Funders:
NEMESIS project of University of Toulouse - LAAS
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Deposited By: Patrice Bacchin
Deposited On:31 Aug 2018 11:39

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