Étude expérimentale de la dispersion active d'un polluant hydrocarboné en milieu poreux hétérogèneActive dispersion of a hydrocarbon pollutant in heterogeneous porous media: experimental study |
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| Authors: | Adrienne Yra Henri Bertin Azita Ahmadi |
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| Institution: | TREFLE-Transferts écoulements fluides énergétique-UMR 8508, laboratoire interétablissements CNRS, ENSAM, ENSCPB, université Bordeaux 1, site ENSAM-Bordeaux, 33405 Talence cedex, France |
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| Abstract: | This study deals with Non Aqueous Phase Liquid (NAPL) dissolution in subsurface water in order to predict the pollutant plume development and to optimize remediation processes. An experimental study of NAPL dissolution in porous media is presented. Local water saturation and effluent pollutant concentration measurements are presented for several kinds of porous media. Experimental results show clearly the influence of microscopic and/or macroscopic heterogeneities of the porous media and the distribution of the pollutant on the active dispersion of the NAPL. The NAPL dissolution occurs in several steps which highlights the existence of non-local equilibrium related to the heterogeneity of the porous media. To cite this article: A. Yra et al., C. R. Mecanique 334 (2006). |
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| Keywords: | Milieux poreux Hétérogénéités Dispersion active Échange de masse Non équilibre Porous media Heterogeneities Active dispersion Mass exchange Non-equilibrium |
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