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Showing 1 to 14 of 14 for “"Radioactive waste disposal"”.
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The geochemistry of radioactive waste disposal
… affect radionuclide migration from a low level radioactive waste disposal site located in a clay deposit. From initial sorption studies on smectite minerals, increased Kd with decreasing initial cation concentration was observed, and three sorption mechanisms were identified. The observation of …
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Characterization of pozzolanic cement for radioactive waste disposal
… material for permanently encasing high-level radioactive waste (HLW) and spent-nuclear fuel (SNF) in disposal canisters. This particular cement was produced by mixing lime or portland cement with volcanic tuff, a natural pozzolanic material extracted from Yucca Mountain, Nevada; …
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Dealing with Uncertainty in Low Level Radioactive Waste Disposal Facility Design
Made available in DSpace on 2017-07-06T18:59:20Z (GMT). No. of bitstreams: 3 Weger_Hans_T_MS.pdf: 66174452 bytes, checksum: 41b783b0b565f9582e3ae2043583f08e (MD5) Weger_Hans_T_MS_ABS.pdf: 466599 bytes, checksum: 577766c083182d8def0f94c9e5d9130a (MD5) license.txt: 4813 bytes, checksum: …
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Economic Aspects of Radioactive Waste Management
The prevailing low-level radioactive waste disposal facility siting paradigm has achieved very limited success, despite expensive cooperative efforts undertaken across a number of states. I begin this dissertation by exploring possible weaknesses in the paradigm's economic foundation, both with …
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Disposal of Bituminized and Other Low- and Medium-Level Wastes: Waste Characterization and the Retention of Migrating Radionuclides by Steel Corrosion Products
… improve the accuracy of projected releases from radioactive waste disposal systems, the sorption characteristics of steel corrosion products were investigated with a special emphasis on competitive sorption between Sr and Na. The corrosion rate of steel exposed to various environments was studied …
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Investment in nuclear generation in a restricted electricity market : an analysis of risks and financing options
… issues in the nuclear industry inherent to radioactive waste disposal, decommissioning and public opposition related to security concerns will likely penalize the building of new nuclear capacity. More importantly, regulatory delays in construction, mainly caused by the plant approval …
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The search for an effective international regime for the long-term safety and security of high level radioactive waste: Pangea and beyond
… geological repositories for high-level radioactive waste disposal (HLW). Nuclear states have attempted for decades to implement effective radioactive waste policies, though with limited success. The safe disposal of HLW has proven particularly troublesome and, thus far, a solution has …
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Underground Britain: public perceptions of the geological subsurface
… fracturing, carbon capture and storage (CCS) and radioactive waste disposal are drawing the public’s attention to the ‘invisible’ world of the geological subsurface. This presents unique communication challenges because these technologies exist in a realm that can never be physically seen. This …
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Fluid flow through connected sub-seismic features in mudstone
… studies difficult. Other direct applications are radioactive waste disposal and also CO2 storage. A 15 metre thick faulted shale unit, deposited in the distal zone of a submarine fan, was studied to investigate the controls on fluid flow through low permeability clastic rock. Turbidite flows are …
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Tritium Plume Dynamics in the Shallow Unsaturated Zone Adjacent to an Arid Waste-Disposal Facility, Amargosa Desert Research Site, Nevada
… adjacent to a closed, commercial low-level radioactive waste disposal facility. Wastes were disposed at the facility from 1962-92. Tritium has moved long distances (> 400 m) through a shallow (1-2-m depth) dry gravelly layer--orders of magnitude further than predicted by standard transport …
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Caractérisation des effets de température dans la zone endommagée autour de tunnels de stockage de déchets nucléaires dans des roches argileuses
… (Thermal Impact On the Damaged Zone Around a Radioactive Waste Disposal in Clay Host Rocks) étudie l'influence de la température sur la zone endommagée. Cette zone correspond à une zone soumise à la redistribution des contraintes lors de l'excavation constituant un lieu de développement de …
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Geomechanical aspects of Sintered Silicon Carbide (SSiC) waste canisters for disposal of high level radioactive waste
High-level radioactive waste (HLW) poses threat to the biosphere. Geological disposal is accepted as a safe way for HLW disposal. Waste canisters made of Sintered Silicon Carbide (SSiC) are proposed and geomechanical safety aspects relating to such SSiC canisters are investigated. First part of the …
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Crustal stress variability across spatial scales - examples from Canada, Northern Switzerland and a South African gold mine
… is a potential repository site for high-level radioactive waste. The performed modelling aims to investigate the sensitivity of the stress tensor on tectonic shortening, topography, faults and variable rock properties within the Mesozoic sedimentary stack, according to the required stability …