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Mass transfer in a membrane aerated biofilm

Picard, Charlotte and Logette, Sébastien and Schrotter, Jean-Christophe and Aimar, Pierre and Remigy, Jean-Christophe Mass transfer in a membrane aerated biofilm. (2012) Water Research, 46 (15). 4761-4769. ISSN 0043-1354

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Official URL: http://dx.doi.org/10.1016/j.watres.2012.05.056


We present experimental results of mass transfer of a non reactive tracer gas (neon)measured in aerobic heterotrophic biofilm developed from activated sludge. Biofilms are grown in various hydrodynamic conditions and the effective diffusivity is used to quantify the mass transfer through the biofilm. Beyond some cross-flow conditions, the effective diffusivity through the biofilm seems larger than in the bulk. This can be explained by a dispersion generated by convection inside the biofilm, as supported by an analytical flow model and in accordance to the numerical simulation proposed by Aspa et al. (2011).

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0043135412003946
HAL Id:hal-00873332
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 - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Veolia Environnement (FRANCE)
Laboratory name:
Deposited On:15 Oct 2013 12:55

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