Search for dissertations about: "Bentonite"
Showing result 11 - 15 of 41 swedish dissertations containing the word Bentonite.
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11. Experimental studies of radiation-induced dissolution of UO2 : The effect of intrinsic solid phase properties and external factors
Abstract : Dissolution of the UO2 matrix is one of the potential routes for radionuclide release in a future deep geological repository for spent nuclear fuel. This doctoral thesis focuses on interfacial reactions of relevance in radiation-induced dissolution of UO2 and is divided in two parts:In the first part, we sought to explore the effects of solid phase composition:The impact of surface stoichiometry on the reactivity of UO2 towards aqueous radiolytic oxidants was studied. READ MORE
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12. Geochemical modelling of groundwater chemistry in the vicinity of a repository for spent nuclear fuel
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13. Oxidation of titanium in aqueous solutions
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14. Numerical modeling of groundwater and air flow between compacted bentonite and fractured crystalline rock
Abstract : The geological repository for final storage of spent nuclear fuel, envisioned by the Swedish Nuclear Fuel and Management Company (SKB), relies on several barriers: copper canisters deposited in holes in the floor of underground tunnels in deep bedrock, embedded in a buffer of compacted bentonite. The initially unsaturated buffer would take up water from the surrounding rock mass and swell to seal any potential gap. READ MORE
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15. Diffusion of cations in bentonite clay : laboratory and in-situ studies
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