Performance Modeling Applied to the Treatment and Disposal of a Mixed Waste at the SRS

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Description

Performance modeling for Low Level Mixed Waste disposal was conducted using the measured leach rates from a number of vitrified waste formulations. The objective of the study was to determine if the improved durability of a vitrified mixed waste would allow trench disposal at the Savannah River Site (SRS). Leaching data were compiled from twenty-nine diverse reference glasses, encompassing a wide range of exposed glass surface area to leachant volume ratios (SA/V), and various leachant solutions; all of which had been leached at 90 degrees Celsius, using the MCC-1 or PCT procedures (ASTM Procedures C1220-92 and C1285-94, respectively). The normalized ... continued below

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12 p.

Creation Information

Pickett, J.B.; Jantzen, C.M.; Cook, J.R.; Whited, A.R. & Field, R.A. May 1, 1997.

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Description

Performance modeling for Low Level Mixed Waste disposal was conducted using the measured leach rates from a number of vitrified waste formulations. The objective of the study was to determine if the improved durability of a vitrified mixed waste would allow trench disposal at the Savannah River Site (SRS). Leaching data were compiled from twenty-nine diverse reference glasses, encompassing a wide range of exposed glass surface area to leachant volume ratios (SA/V), and various leachant solutions; all of which had been leached at 90 degrees Celsius, using the MCC-1 or PCT procedures (ASTM Procedures C1220-92 and C1285-94, respectively). The normalized leach rates were scaled to the ambient disposal temperature of 25 degrees Celsius, and compared to the allowable leach rate of uranium - which would meet the performance assessment requirements. The results indicated that a glass of above average durability (vs. the reference glasses) would meet the uranium leaching concentration for direct SRS trench disposal.

Physical Description

12 p.

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INIS; OSTI as DE98052750

Source

  • 99. annual meeting of the American Ceramic Society, Cincinnati, OH (United States), 4-7 May 1997

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  • Other: DE98052750
  • Report No.: WSRC-TR--97-00327
  • Report No.: CONF-970568--
  • Grant Number: AC09-96SR18500;FC09-93SR18262
  • DOI: 10.2172/604316 | External Link
  • Office of Scientific & Technical Information Report Number: 604316
  • Archival Resource Key: ark:/67531/metadc696371

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • Feb. 9, 2016, 6:19 p.m.

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Pickett, J.B.; Jantzen, C.M.; Cook, J.R.; Whited, A.R. & Field, R.A. Performance Modeling Applied to the Treatment and Disposal of a Mixed Waste at the SRS, report, May 1, 1997; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc696371/: accessed December 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.