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Titre :
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Transport of rate-limited sorbing solutes in an aggregated porous medium: A multiprocess non-ideality approach
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Auteurs :
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Q. Hu ;
M. Brusseau
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Type de document :
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article/chapitre/communication
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Année de publication :
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1996
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Format :
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p. 53-73
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Langues:
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= Anglais
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Catégories :
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HYDROLOGIE ET HYDRAULIQUE
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Mots-clés:
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TRANSPORT DE CONTAMINANT
;
MILIEU POREUX
;
SOLUTE
;
SORPTION
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Résumé :
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The purpose of this work is to investigate the transport of rate-limited sorbing solutes in a saturated, aggregated porous medium. Data obtained from miscible displacement experiments are used to examine the transport of solutes constrained by rate-limited sorption and mass transfer, to examine the synergistic effects of two non-ideality factors, and to test the capability of a multiprocess non-equilibrium (MPNE) model to simulate transport. The input parameters were obtained independently, allowing the model to be used in a predictive mode. The independent predictions obtained with the MPNE model provided very good descriptions of the experimental data for several organic solutes with different structures. The effects of multiple non-ideality factors controlling solute transport were explored, and flow interruption experiments provided additional evidence regarding the synergistic effects of rate-limited sorption and rate-limited mass transfer.ltant impact on solute transport were also examined.
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Source :
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Journal of Contaminant Hydrology, vol.24
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