Tracer attenuation in groundwater
2011 (English)In: Water resources research, ISSN 0043-1397, E-ISSN 1944-7973, Vol. 47, no 12, W12541- p.Article in journal (Refereed) Published
The self-purifying capacity of aquifers strongly depends on the attenuation of waterborne contaminants, i.e.,irreversible loss of contaminant mass on a given scale as a result of coupled transport and transformation processes. A general formulation of tracer attenuation in groundwater is presented. Basic sensitivities of attenuation to macrodispersion and retention are illustrated for a few typical retention mechanisms. Tracer recovery is suggested as an experimental proxy for attenuation. Unique experimental data of tracer recovery in crystalline rock compare favorably with the theoretical model that is based on diffusion-controlled retention. Non-Fickian hydrodynamic transport has potentially a large impact on field-scale attenuation of dissolved contaminants.
Place, publisher, year, edition, pages
2011. Vol. 47, no 12, W12541- p.
IdentifiersURN: urn:nbn:se:kth:diva-75539DOI: 10.1029/2011WR010999ISI: 000298757200002ScopusID: 2-s2.0-84855453822OAI: oai:DiVA.org:kth-75539DiVA: diva2:490769
QC 201202062012-02-062012-02-062012-02-06Bibliographically approved