Nuclear waste management and criticality safety

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Since 1945 waste streams containing radioactive isotopes have been discharged to underground storage tanks on the Hanford Site in Washington State. At least 49 different waste streams containing low concentrations of {sup 235}U and {sup 239}Pu have been transferred to tank farm facilities. Optimizing tank space, combined with the variability of operations, results in a complex waste matrix that is difficult to characterize. Characterizing tank waste is difficult because of its relative inaccessibility inside the storage tanks and because of the large degree of uncertainty in the composition and distribution of components. Nuclear criticality safety controls are based on precise ... continued below

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4 p.

Creation Information

Vail, T.S. July 1, 1995.

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  • Westinghouse Hanford Company
    Publisher Info: Westinghouse Hanford Co., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

Since 1945 waste streams containing radioactive isotopes have been discharged to underground storage tanks on the Hanford Site in Washington State. At least 49 different waste streams containing low concentrations of {sup 235}U and {sup 239}Pu have been transferred to tank farm facilities. Optimizing tank space, combined with the variability of operations, results in a complex waste matrix that is difficult to characterize. Characterizing tank waste is difficult because of its relative inaccessibility inside the storage tanks and because of the large degree of uncertainty in the composition and distribution of components. Nuclear criticality safety controls are based on precise configurations that are conservative when used to represent the waste environment. However, the safety philosophy governing waste storage requires that the waste be controlled and monitored, and the margin of safety be quantified.

Physical Description

4 p.

Notes

INIS; OSTI as DE95014315

Source

  • Annual meeting of the American Nuclear Society (ANS), Philadelphia, PA (United States), 25-29 Jun 1995

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  • Other: DE95014315
  • Report No.: WHC-SA--2758
  • Report No.: CONF-950601--24
  • Grant Number: AC06-87RL10930
  • Office of Scientific & Technical Information Report Number: 95299
  • Archival Resource Key: ark:/67531/metadc792726

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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.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • July 1, 1995

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Feb. 9, 2016, 10:37 a.m.

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Vail, T.S. Nuclear waste management and criticality safety, article, July 1, 1995; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc792726/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.