Results after ten years of field testing low-level radioactive waste forms using lysimeters

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The Field Lysimeter Investigations: Low-Level Waste Data Base Development Program is obtaining information on the performance of radioactive waste forms. These experiments were recently shut down and have been examined in accordance with a detailed waste form and soil sampling plan. Ion-exchange resins from a commercial nuclear power station were solidified into waste forms using portland cement and vinyl ester-styrene. These waste forms were tested to (a) obtain information on performance of waste forms in typical disposal environments, (b) compare field results with bench leach studies, (c) develop a low-level waste data base for use in performance assessment source term ... continued below

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19 p.

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McConnell, J.W. Jr.; Rogers, R.D.; Jastrow, J.D.; Sanford, W.E.; Cline, S.R.; Sullivan, T.M. et al. December 31, 1997.

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Description

The Field Lysimeter Investigations: Low-Level Waste Data Base Development Program is obtaining information on the performance of radioactive waste forms. These experiments were recently shut down and have been examined in accordance with a detailed waste form and soil sampling plan. Ion-exchange resins from a commercial nuclear power station were solidified into waste forms using portland cement and vinyl ester-styrene. These waste forms were tested to (a) obtain information on performance of waste forms in typical disposal environments, (b) compare field results with bench leach studies, (c) develop a low-level waste data base for use in performance assessment source term calculations, and (d) apply the DUST computer code to compare predicted cumulative release to actual field data. The program, funded by the Nuclear Regulatory Commission (NRC), includes observed radionuclide releases from waste forms in field lysimeters. The purpose of this paper is to present the experimental results of two lysimeter arrays after 10 years of operation, and to compare those results to bench test results and to DUST code predictions of releases using recently developed partition coefficients. This paper discusses soil and waste form sampling in which vertical cores were removed from the lysimeter soil columns for laboratory characterization. Those samples will be analyzed for radionuclide movement from the waste forms and through the soil columns. Further analysis of soil cores taken to define the observed upward migration of radionuclides in one lysimeter is also presented.

Physical Description

19 p.

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INIS; OSTI as DE98057821

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  • Waste Management `97, Tucson, AZ (United States), 2-7 Mar 1997

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  • Other: DE98057821
  • Report No.: ANL/ER/CP--95275
  • Report No.: CONF-970335--
  • Grant Number: W-31109-ENG-38;AC07-94ID13223
  • DOI: 10.2172/674557 | External Link
  • Office of Scientific & Technical Information Report Number: 674557
  • Archival Resource Key: ark:/67531/metadc703790

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  • December 31, 1997

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • July 19, 2016, 12:38 p.m.

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McConnell, J.W. Jr.; Rogers, R.D.; Jastrow, J.D.; Sanford, W.E.; Cline, S.R.; Sullivan, T.M. et al. Results after ten years of field testing low-level radioactive waste forms using lysimeters, report, December 31, 1997; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc703790/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.