Mechano-chemical ageing of PES/PVP ultrafiltration membranes used in drinking water production
| Autor: | Christel Causserand, Bastien T. Pellegrin, Emmanuelle Gaudichet-Maurin |
|---|---|
| Přispěvatelé: | Laboratoire de génie chimique [ancien site de Basso-Cambo] (LGC), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Veolia Environnement (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Mechanical stress
Microfiltration PVP Ultrafiltration 02 engineering and technology 010501 environmental sciences 01 natural sciences chemistry.chemical_compound [CHIM.GENI]Chemical Sciences/Chemical engineering Génie chimique Chemical decomposition 0105 earth and related environmental sciences Water Science and Technology Ecologie Environnement [SDV.EE]Life Sciences [q-bio]/Ecology environment Chromatography Chemistry Hypochlorite cleaning Ultrafiltration membrane Permeation 021001 nanoscience & nanotechnology 6. Clean water Ageing PES Membrane Chemical engineering Sodium hypochlorite Water treatment 0210 nano-technology |
| Zdroj: | Water Science and Technology: Water Supply Water Science and Technology: Water Supply, IWA Publishing, 2013, vol. 13 (n° 2), pp. 541-551. ⟨10.2166/ws.2013.056⟩ |
| ISSN: | 1606-9749 |
| DOI: | 10.2166/ws.2013.056⟩ |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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