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Using 1,1,1-Trichloroethane degradation data to understand NAPL dissolution and solute transport at real sites

dc.rights.licenseopenen_US
hal.structure.identifierGéoressources & Environnement [ENSEGID]
dc.contributor.authorILLY, Valeureux
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCOHEN, Gregory J.V.
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorVERARDO, Elicia
hal.structure.identifierLaboratoire Chimie de l'environnement [LCE]
dc.contributor.authorHÖHENER, Patrick
hal.structure.identifierTechnocentre Renault [Guyancourt]
dc.contributor.authorGUISERIX, Nathalie
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorATTEIA, Olivier
IDREF: 078590272
dc.date.accessioned2024-10-14T09:38:50Z
dc.date.available2024-10-14T09:38:50Z
dc.date.issued2022-02
dc.identifier.issn0169-7722en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/202469
dc.description.abstractEnAnalytical and numerical models describing the evolution of contaminant concentrations in the plume associated with the dissolution of NAPL source and degradation processes were presented in the literature. At real sites and particularly in complex aquifers like chalk, it is difficult to understand how the sources of contaminants evolve with time. 1,1,1-Trichloroethane (1,1,1-TCA) is one of the few compounds with a well-known hydrolysis constant, that can help to improve knowledge of the contaminant sources and transport rates of dissolved contaminants in groundwater by dating the spill. In this work, different scenarios that could explain the evolution of the concentrations of 1,1,1-TCA and its degradation product 1,1-Dichloroethene (1,1-DCE) at a real contaminated site were investigated by analytical and numerical modelling. The results show that (1) the peaks of concentration time series do not correspond to a single contamination event even in the case of a complex medium, (2) the multiphasic behavior of the concentration time series is dictated by the dissolution in a heterogeneous medium, and (3) the persistence of the concentrations can arise from a small residual organic phase or transport in dual domain medium.
dc.language.isoENen_US
dc.title.enUsing 1,1,1-Trichloroethane degradation data to understand NAPL dissolution and solute transport at real sites
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.jconhyd.2021.103934en_US
dc.subject.halSciences de l'environnement/Milieux et Changements globauxen_US
dc.subject.halSciences de l'environnement/Ingénierie de l'environnementen_US
bordeaux.journalJournal of Contaminant Hydrologyen_US
bordeaux.page103934en_US
bordeaux.volume245en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamPROMESSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-03588166
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
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