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* Corresponding author 1 LGC - Laboratoire de génie chimique 2 CRL - Rhodia Recherches CRL

Abstract : Can we rely on the analysis of flux decline to evaluate the risks of a filter media to be clogged during filtration of a given particle suspension? This important issue can be dealt with a macroscopic approach described in this paper. We seek to identify and quantify the successive prevailing mechanisms which occur during a filtration run, directly and solely from experimental flux data. This is achieved from the collection of experimental data filtrate volume V versus time t and the use of the differential equation . A methodology is then proposed to define and validate experimental procedures with the purpose of quantifying occurring fouling mechanism. For the purpose of illustrating its valuable impact for a bench marking procedure, the methodology has been applied on a model system composed of a bentonite suspension and a series of microfiltration membranes of different structures.

Keywords : Microfiltration Flux decline Blocking Fouling mechanisms Filter media





Autor: Alexia Grenier - Martine Meireles - Pierre Aimar - Philippe Carvin -

Fuente: https://hal.archives-ouvertes.fr/



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