Multi-scale analysis of hypochlorite induced PES/PVP ultrafiltration membranes degradation
| Autor: | Christel Causserand, Romain Prulho, Bastien T. Pellegrin, Sandrine Therias, Agnès Rivaton, Jean-Luc Gardette, Emmanuelle Gaudichet-Maurin |
|---|---|
| Přispěvatelé: | Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Blaise Pascal - UBP (FRANCE), Veolia Environnement (FRANCE), 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, Institut de Chimie de Clermont-Ferrand (ICCF), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Sigma CLERMONT (Sigma CLERMONT)-Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Laboratoire de Génie Chimique (LGC), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
PVP
Size-exclusion chromatography Biochimie Biologie Moléculaire Hypochlorite Ultrafiltration Filtration and Separation 02 engineering and technology 010501 environmental sciences 01 natural sciences Biochemistry chemistry.chemical_compound [SDV.BV]Life Sciences [q-bio]/Vegetal Biology [CHIM]Chemical Sciences General Materials Science [SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular Biology Physical and Theoretical Chemistry 0105 earth and related environmental sciences chemistry.chemical_classification Chromatography Aqueous solution Polymer Hypochlorite cleaning Permeation 021001 nanoscience & nanotechnology 6. Clean water Ageing PES Membrane chemistry Chemical engineering 13. Climate action Sodium hypochlorite Attenuated total reflection 0210 nano-technology Biologie végétale |
| Zdroj: | Journal of Membrane Science Journal of Membrane Science, Elsevier, 2013, vol. 447, pp. 287-296. ⟨10.1016/j.memsci.2013.07.026⟩ Journal of Membrane Science, Elsevier, 2013, pp.287-296. ⟨10.1016/j.memsci.2013.07.026⟩ Journal of Membrane Science, Elsevier, 2013, pp.287-296 Journal of Membrane Science, 2013, vol. 447, pp. 287-296. ⟨10.1016/j.memsci.2013.07.026⟩ |
| ISSN: | 0376-7388 |
| DOI: | 10.1016/j.memsci.2013.07.026⟩ |
| Popis: | International audience; In drinking water production plants, the use of oxidants such as sodium hypochlorite during in-place cleanings may impair the membrane integrity and radically impact the ultrafiltration process efficiency, leading to potential contamination of the permeate water with pathogens. This study investigates the effects of hypochlorite exposure on the properties of a commercially available UF hollow fiber. Mechanical performances and water permeability appeared to be greatly affected by the contact with hypochlorite. Monitoring the molecular changes by X-ray photoelectron spectroscopy (XPS), attenuated total reflectance infrared spectroscopy (ATR-IR), size exclusion chromatography (SEC) and VITA-mode atomic force microscopy (VITA-AFM) revealed high stability of the main polymer constituting the membrane (i.e. polyethersulfone (PES)) and very high reactivity of the additive (i.e. poly(N-vinyl pyrrolidone) (PVP)) towards immersion in aqueous sodium hypochlorite solution with maximal reaction rate for neutral to slightly basic pH. Correlation of those results unexpectedly leads to the conclusion that the overall membrane properties changes are governed by the additive fate. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect