Corrosion-Enhancing and Corrosion-Reducing Accessories in Bentonite Surrounding Copper-Shielded Containers for Nuclear Waste

Schwartz, Michael O.

doi:10.1061/(asce)hz.2153-5515.0000628

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…Schwartz [23] High-level nuclear waste is normally buried in carbon steel containers coated with a 5 cm layer of corrosion-resistant native copper (Cu°) and a 35 cm thick bentonite buffer. The copper shield's rate of corrosion is significantly influenced by the auxiliary minerals in the buffer.…”

Section: Transportation Casksmentioning

confidence: 99%

Thermal Analysis of Spent Nuclear Fuel Transportation Cask Shielded With Phase Change Material

2023

IJOMAM

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The "Closed Fuel Cycle" model, in which spent nuclear fuel is viewed as a resource, has found support in India. The methods used in India to handle nuclear waste are equivalent to those used elsewhere and adhere to International Atomic Energy Agency (IAEA) regulations. In accordance with the waste management procedures, Cat-III and Cat-IV high beta-gamma (alpha and non-alpha) waste canisters must be temporarily stored inside designed storage vaults. Depending on the radioactivity of the canisters, they are eventually disposed of in safe concrete tunnels or deep geological repositories. However, since this nuclear waste is radioactive in nature, transporting it from the facility to the dump yards or vicinity has proven to be a major obstacle for many studies. Contact with this waste can cause serious bodily harm as well as cell damage to any nearby living things. In this research, we look at how to make a nuclear waste storage container that can endure extreme heat, pressure, and shock. Researchers examined the thermal conductivity, compressive strength, and latent heat of different PCM materials to discover which is most efficient for carrying nuclear waste barrels.

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Section: Transportation Casksmentioning

confidence: 99%

Thermal Analysis of Spent Nuclear Fuel Transportation Cask Shielded With Phase Change Material

2023

IJOMAM

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“…The long-term evolution of clay materials in DGR depends on a number of physicochemical factors, including the coevolution of other barriers in the system (steel or copper metal containers, cement materials, etc.) [12,13]. Among the factors affecting clay properties during long-term DGR storage is the biological one [3].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Rates of Microbial Processes in Clays of Different Mineral and Elemental Composition in Relation to Safety Prediction for ESB Clay Materials

et al. 2022

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Microbial activity in clay barrier materials during radioactive waste disposal can lead to a violation of important physicochemical properties of the barrier system as a whole, thereby reducing the safety of the storage facility. This work evaluates the activity of the microbial complex of five bentonite and two kaolin clays. All clay materials were found to contain microorganisms, mostly with organotrophic aerobic and anaerobic metabolism capable of forming hydrogen sulfide and transforming basic and impurity clay minerals. The activity of microorganisms can increase with the ingress of degradation products of aluminophosphate matrices and cement barriers, as well as radiolysis products. For all clay the rates of microbial processes were shown to exhibit a direct correlation with the content of organic matter, kaolinite, and potassium feldspar, and an inverse correlation with montmorillonite content. A systematic methodological approach is proposed for clay materials and their susceptibility to microbial processes. The approach makes it possible, based on the content of organic matter, biophilic elements in the samples, parameters of the respiratory activity of the microbial complex, the formation of hydrogen sulfide, and other parameters, to assess in advance the possibility of using them in barriers.

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Corrosion processes affecting copper-coated used fuel containers for the disposal of spent nuclear fuel: critical review of the state-of-knowledge

Harper,

Brown,

Amos

2024

npj Mater Degrad

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The uniqueness of the Canadian spent nuclear fuel disposal container design requires a detailed understanding of the copper corrosion processes that could occur in deep geological repositories. This review aimed to identify knowledge gaps surrounding impacts of changing conditions and the evolution of corrosion processes as conditions change from moist/cool, through warm/dry, to cool/fully saturated. This review indicates that early, unsaturated corrosion, and compounding influences of previous corrosion are understudied.

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Corrosion-Enhancing and Corrosion-Reducing Accessories in Bentonite Surrounding Copper-Shielded Containers for Nuclear Waste

Cited by 3 publications

References 15 publications

Thermal Analysis of Spent Nuclear Fuel Transportation Cask Shielded With Phase Change Material

Thermal Analysis of Spent Nuclear Fuel Transportation Cask Shielded With Phase Change Material

Characteristics and Rates of Microbial Processes in Clays of Different Mineral and Elemental Composition in Relation to Safety Prediction for ESB Clay Materials

Corrosion processes affecting copper-coated used fuel containers for the disposal of spent nuclear fuel: critical review of the state-of-knowledge

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