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Predicting DNAPL entrapment and recovery: the influence of hydraulic property correlation

dc.contributor.authorAbriola, Linda M.en_US
dc.contributor.authorLemke, L. D.en_US
dc.date.accessioned2006-09-11T19:27:00Z
dc.date.available2006-09-11T19:27:00Z
dc.date.issued2003-12en_US
dc.identifier.citationLemke, L. D.; Abriola, L. M.; (2003). "Predicting DNAPL entrapment and recovery: the influence of hydraulic property correlation." Stochastic Environmental Research and Risk Assessment 17(6): 408-418. <http://hdl.handle.net/2027.42/47837>en_US
dc.identifier.issn1436-3240en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/47837
dc.description.abstractThe influence of aquifer property correlation on multiphase fluid migration, entrapment and recovery was explored by incorporating correlated and uncorrelated porosity, permeability, and capillary pressure-saturation (P c -Sat) parameter fields in a cross-sectional numerical multiphase flow model. Comparison of two-dimensional entrapped organic saturation distributions for a simulated tetrachloroethylene (PCE) spill in ensembles of aquifer realizations suggests that the degree of spatial correlation in P c -Sat parameters exerts a controlling influence on dense nonaqueous phase liquid (DNAPL) spreading and redistribution in saturated aquifers. The predicted evolution of DNAPL source zones and resultant remediation efficiency under surfactant enhanced aquifer remediation (SEAR) also appear to be strongly influenced by the spatial correlation of aquifer parameters and multiphase flow constitutive relationships. Results for a limited number of realizations selected from each ensemble showed that removal of 60% to 99% of entrapped PCE could reduce dissolved contaminant concentration and mass flux by approximately two orders of magnitude under natural gradient conditions. Aqueous phase contaminant mass flux did not vary uniformly as a function of % DNAPL removed, however, and notable differences in behavior were observed for models incorporating correlated versus uncorrelated P c -Sat and permeability fields. Although these results must be confirmed through analysis of additional realizations, it is likely that similar or larger differences between correlated and uncorrelated system behavior will be observed in aquifers with greater spatially variability than that of the nonuniform, homogeneous sand aquifer studied here.en_US
dc.format.extent336186 bytes
dc.format.extent3115 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_US
dc.publisherSpringer-Verlag; Springer-Verlag Berlin Heidelbergen_US
dc.subject.otherSurfactant Enhanced Aquifer Remediationen_US
dc.subject.otherSEARen_US
dc.subject.otherHeterogeneityen_US
dc.subject.otherEngineeringen_US
dc.subject.otherDNAPLen_US
dc.subject.otherDNAPL Source Zonesen_US
dc.titlePredicting DNAPL entrapment and recovery: the influence of hydraulic property correlationen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelGeology and Earth Sciencesen_US
dc.subject.hlbsecondlevelGeography and Mapsen_US
dc.subject.hlbsecondlevelCivil and Environmental Engineeringen_US
dc.subject.hlbtoplevelScienceen_US
dc.subject.hlbtoplevelSocial Sciencesen_US
dc.subject.hlbtoplevelEngineeringen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA,en_US
dc.contributor.affiliationumDepartment of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA,en_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/47837/1/477_2003_Article_162.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1007/s00477-003-0162-4en_US
dc.identifier.sourceStochastic Environmental Research and Risk Assessmenten_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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