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A Modest Proposal: A Robust, Cost-Effective Design for High-Level Waste Packages

  • M.J. Apted (a1)

Abstract

An alternative waste-package design for the geological disposal of high-level waste (HLW) glass is presented. In conventional designs, a massive buffer of compacted bentonite is placed around a thick-walled, mild-steel overpack; in the revised design, a much thinner buffer is placed within a thin-walled, mild-steel overpack. This simple expedient eliminates certain performance concerns in existing waste-package designs, while not necessitating the study of any new materials. This integrated waste package (IWP) design has comparable release-rate performance as current package designs for HLW. In addition, the 1WP design requires far-less rock excavation, permits significantly higher temperatures for longer periods, leads to a 20-50% reduction in repository area, and is more cost efficient than previous designs.

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A Modest Proposal: A Robust, Cost-Effective Design for High-Level Waste Packages

  • M.J. Apted (a1)

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