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Dispersive transport in porous media with biofilms: local mass equilibrium in simple unit cells

Wood, Brian D. and Golfier, Fabrice and Quintard, Michel Dispersive transport in porous media with biofilms: local mass equilibrium in simple unit cells. (2011) International Journal of Environment and Waste Management, 7 (1/2). 24-48. ISSN 1478-9876

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Official URL: http://dx.doi.org/10.1504/IJEWM.2011.037364

Abstract

In this work, we continue our study of upscaling biofilm processes in porous media from the pore scale to the Darcy scale. We adopt a continuum-level description of biofilms at the pore scale on the basis of work reported in Wood et al. (2002b). We upscale from the pore scale to the Darcy scale using the method ofvolume averaging and we predict the effective dispersion tensor with two- and three-dimensional closure problems. Our results indicate that, for a one-equation local mass equilibrium theory, the primary influence of the biofilm is that the effective diffusion coefficient is smaller than it would be without the presence of biofilm. This effect is important primarily atlow Péclet numbers.

Item Type:Article
Additional Information:Thanks to Inderscience publishers. The original publication is available at http://www.inderscience.com
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Institut National Polytechnique de Lorraine - INPL (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Oregon State University (USA)
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Deposited On:09 Apr 2013 08:02

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