Diffusive transport and evaporation to the atmosphere from a NAPL source in the vadose zone

L.E. Holtegaard, T. Bjerre, Mette Christophersen, Peter Kjeldsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch


    To evaluate the risks concerned with the presence of volatile organic compounds in the unsaturated zone it is important to know how the compounds are transported in the soil. In this project the effective diffusion coefficient of 3-methylpentane, hexane, methyl-cyclopentane, iso-octane and methyl-cyclo-hexane has been measured in-situ using a diffusive tracer test (DTT). Furthermore the flux from a NAPL source has been measured in flux chambers. From these results the effective diffusion coefficient has been calculated for CFC113, methyl-cyclo-pentane, benzene, iso-octane, and methyl-cyclo-hexane, but there is a large variation between these results and the corresponding values from the DTT-experiment.
    Original languageEnglish
    Title of host publicationVintermøde om jord- og grundvandsforurening, Vingstedcentret 5-6 marts
    Place of PublicationKgs. Lyngby
    PublisherATV-fonden for Jord og Grundvand
    Publication date2002
    Publication statusPublished - 2002
    EventVintermøde om jord- og grundvandsforurening 2002 - Vingstedcentret, Bredsten, Denmark
    Duration: 5 Mar 20026 Mar 2002


    SeminarVintermøde om jord- og grundvandsforurening 2002


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