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Harmonisation of site characterisation and performance assessment modelling - The relative importance of surface sorption and matrix interaction phenomena
KTH, Superseded Departments, Chemical Engineering and Technology.
KTH, Superseded Departments, Chemical Engineering and Technology.ORCID iD: 0000-0001-8241-2225
KTH, Superseded Departments, Chemical Engineering and Technology.
2004 (English)In: Scientific Basis For Nuclear Waste Management XXVII / [ed] Oversby, VM; Werme, LO, 2004, Vol. 807, 551-556 p.Conference paper (Refereed)
Abstract [en]

In the context of geological repositories for nuclear waste disposal, the goal of site characterisation (SC) is to obtain input data that can later be used as a basis for performance assessment calculations (PA). Performance assessment is required to give an indication as to whether the repository will behave as intended over the geological timescales relevant for risk analysis. Processes that may be important in a PA setting for constraining radionuclide transport may not necessarily be dominating, or indeed may not even be observable during SC investigations. In this paper it is shown that the migration of sorbing tracers is governed largely by surface sorption phenomena in typical SC-type field experiments whereas in a PA scenario, matrix interaction instead can be expected to play an overwhelmingly important role. This study uses data and settings that are representative for fractured rocks in Sweden, but the method used and the conclusions may have more general applicability.

Place, publisher, year, edition, pages
2004. Vol. 807, 551-556 p.
National Category
Chemical Engineering
URN: urn:nbn:se:kth:diva-43826ISI: 000225038400090ScopusID: 2-s2.0-12844268121ISBN: 1-55899-752-0OAI: diva2:448820
27th Symposium on Scientific Basis for Nuclear Waste Management Location: Kalmar, SWEDEN Date: JUN 15-19, 2003
QC 20111018Available from: 2011-10-18 Created: 2011-10-18 Last updated: 2011-10-31Bibliographically approved

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