Assessing natural attenuation at field scale by stochastic reactive transport modelling

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dc.contributor.author Peter, Anita de_DE
dc.date.accessioned 2002-09-13 de_DE
dc.date.accessioned 2014-03-18T10:10:18Z
dc.date.available 2002-09-13 de_DE
dc.date.available 2014-03-18T10:10:18Z
dc.date.issued 2002 de_DE
dc.identifier.other 102363838 de_DE
dc.identifier.uri http://nbn-resolving.de/urn:nbn:de:bsz:21-opus-5809 de_DE
dc.identifier.uri http://hdl.handle.net/10900/48391
dc.description.abstract A combined integral measuring and modelling approach is presented and applied, to assess natural attenuation at the former gasworks site in Stuttgart, ´Testfeld Süd´. The approach copes with subsurface heterogeneity by two different means. The integral measuring approach provides mean concentrations and mass flow rates at control planes, that are obtained by enlarging the sample volume and thus constitute values integrated over the heterogeneous subsurface. Within the modelling approach, heterogeneity is accounted for stochastically by a Monte Carlo approach. To describe the heterogeneity at the ´Testfeld Süd´, a geostatistical analysis of the categorical variable ´facies´, that hydraulic and geochemical parameters are attributed to, was performed. Equally likely aquifer realizations were generated, that served as input for the subsequent flow and reactive transport modelling of acenaphthene and o-xylene. Results of the combined integral measuring and modelling approach were compared to results obtained from an integrally applied compound-specific isotope analysis (CSIA). Therefore, two additional integral mass flow rate measurements were performed to determine both contaminant mass flow rates and mean isotope ratios at two control planes. Results of the integrally applied CSIA method by using the Rayleigh equation revealed that the complete mass flow rate reduction observed for o-xylene is due to biodegradation, which was confirmed by the stochastic transport modelling for o-xylene. en
dc.language.iso en de_DE
dc.publisher Universität Tübingen de_DE
dc.rights ubt-nopod de_DE
dc.rights.uri http://tobias-lib.uni-tuebingen.de/doku/lic_ubt-nopod.php?la=de de_DE
dc.rights.uri http://tobias-lib.uni-tuebingen.de/doku/lic_ubt-nopod.php?la=en en
dc.subject.classification Grundwasser , Schadstofftransport , Mathematisches Modell , Stochastisches Modell de_DE
dc.subject.ddc 550 de_DE
dc.subject.other Selbstreinigungspotenzial , Schadstoffmassenfluss de_DE
dc.subject.other Natural attenuation , contaminant mass flow rate en
dc.title Assessing natural attenuation at field scale by stochastic reactive transport modelling en
dc.type Book de_DE
dc.date.updated 2010-02-11 de_DE
utue.publikation.fachbereich Sonstige - Geowissenschaften de_DE
utue.publikation.fakultaet 7 Mathematisch-Naturwissenschaftliche Fakultät de_DE
dcterms.DCMIType Text de_DE
utue.publikation.typ book de_DE
utue.opus.id 580 de_DE
utue.opus.portal tga_c de_DE
utue.opus.portalzaehlung 64.00000 de_DE
utue.publikation.source Tübinger Geowissenschaftliche Arbeiten (TGA) : Reihe C, Hydro-, Ingenieur- und Umweltgeologie ; 64 de_DE
utue.publikation.reihenname Tübinger Geowissenschaftliche Arbeiten (TGA) : Reihe C de_DE
utue.publikation.zsausgabe 2002, 64
utue.publikation.zstitelid 1093347-500

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