Vapor hydration and subsequent leaching of transuranic-containing SRL and WV glasses

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Prior to contact by liquid water and subsequent leaching, high-level nuclear waste glass subject to disposal in the unsaturated environment at Yucca Mountain, Nevada, will be altered through contact with humid air. Conditions could range from temperatures as high as 200{degree}C to ambient repository temperature after cooling and relative humidities up to 100% depending on the air flow and heat transport dynamics of the waste package and near field environments. However, under any potential set of temperature/humidity conditions, the glass will undergo alteration via well-established vapor phase hydration processes. In the present paper, the results of a set of parametric ... continued below

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9 p.

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Bates, J.K.; Ebert, W.L. & Gerding, T.J. September 1, 1989.

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Prior to contact by liquid water and subsequent leaching, high-level nuclear waste glass subject to disposal in the unsaturated environment at Yucca Mountain, Nevada, will be altered through contact with humid air. Conditions could range from temperatures as high as 200{degree}C to ambient repository temperature after cooling and relative humidities up to 100% depending on the air flow and heat transport dynamics of the waste package and near field environments. However, under any potential set of temperature/humidity conditions, the glass will undergo alteration via well-established vapor phase hydration processes. In the present paper, the results of a set of parametric experiments are described, whereby vapor phase hydrated glasses were subjected to leaching under static conditions. The purpose of the experiments was to (1) compare the leaching of vapor phase altered glass to that of fresh glass, (2) to develop techniques for determining the radionuclide content of secondary phases that formed during the hydration reaction, and (3) to provide a basis for performing long-term saturated and unsaturated testing of vapor hydrated glass. 3 refs., 2 figs., 2 tabs.

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9 p.

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INIS; OSTI as DE90002261

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  • 1. international topical meeting on high-level radioactive waste management, Las Vegas, NV (United States), 8-12 Apr 1990

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  • Other: DE90002261
  • Report No.: CONF-900406--4
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 137659
  • Archival Resource Key: ark:/67531/metadc622615

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  • September 1, 1989

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  • June 16, 2015, 7:43 a.m.

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  • Dec. 15, 2015, 6:11 p.m.

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Bates, J.K.; Ebert, W.L. & Gerding, T.J. Vapor hydration and subsequent leaching of transuranic-containing SRL and WV glasses, article, September 1, 1989; Illinois. (digital.library.unt.edu/ark:/67531/metadc622615/: accessed June 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.