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Mechano-chemical ageing of PES/PVP ultrafiltration membranes used in drinking water production

Pellegrin, Bastien and Gaudichet-Maurin, Emmanuelle and Causserand, Christel Mechano-chemical ageing of PES/PVP ultrafiltration membranes used in drinking water production. (2013) Water Science & Technology: Water Supply, vol. 13 (n° 2). pp. 541-551. ISSN 1606-9749

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Official URL: http://dx.doi.org/10.2166/ws.2013.056

Abstract

In water treatment by microfiltration and ultrafiltration, a major concern is the integrity loss or failure of membrane induced by onsite operations, potentially leading to permeate water contamination. This study aims to provide a better understanding of the phenomena responsible for membrane damage by analyzing its causes and effects. The role of sodium hypochlorite exposure conditions and the impact of mechanical stress on membrane characteristics were investigated. Monitoring of hydraulic response, mechanical properties and the evolution of the chemical structure showed, on multiple scales, strong indications of membrane chemical degradation, involving radical mechanisms, accelerated by tensile stress application.

Item Type:Article
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 > Veolia Environnement (FRANCE)
Laboratory name:
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Deposited By: Vincent GERBAUD
Deposited On:24 Oct 2013 14:01

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