Search for dissertations about: "colloid stability"
Showing result 1 - 5 of 22 swedish dissertations containing the words colloid stability.
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1. Stability and sorption capacity of montmorillonite colloids : Investigation of size fractional differences and effects of γ-irradiation
Abstract : Bentonite clay is intended to form one of the barriers in most repositories of spent nuclear fuel located in granite. One important function of the bentonite barrier is to retard transport of radionuclides in the event of waste canister failure. Bentonite has a high sorption capacity of cations and its main constituent is montmorillonite. READ MORE
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2. Transport of Radionuclides and Colloid Through Quartz Sand Columns
Abstract : Studies of the transport of radionuclides in the geosphere are one of the main tasks for performance assessment of a nuclear waste repository. A possible enhanced transport path for the radionuclides is the formation and transport of non-depositing colloids with a high affinity for radionuclides. READ MORE
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3. The Influence of Polyelectrolytes on the Stability of Colloids
Abstract : The interaction between two colloids with grafted polyelectrolytes in aqueous solution is studied within the primitive model by Monte Carlo simulations. For neutral colloids with grafted polyelectrolytes and in absence of salt the interaction is strongly repulsive in absence of salt. READ MORE
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4. The bentonite barrier : microstructural aspects on colloid filtration and radiation effects on bentonite colloid stability
Abstract : In many countries a multi-barrier concept in a deep geological repository is planned for final disposal of nuclear waste. Many of these different concepts, for example the Swedish KBS-3 model, include an engineered barrier consisting of compacted bentonite. READ MORE
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5. Generation, stability and migration of montmorillonite colloids in aqueous systems
Abstract : In Sweden the encapsulated nuclear waste will be surrounded by compacted bentonite in the granitic host rock. In contact with water-bearing fractures the bentonite barrier may release montmorillonite colloids that may be further transported in groundwater. READ MORE