Project AN0115A Annual Report, 1977: Migration of Long-Lived Radioactive Processing Wastes in Selected Rocks

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Annual report of Argonne National Laboratory project ANO115A. This report discusses research to compare migration of radionuclides in scale models versus the Pu-Am disposal areas at Los Alamos Laboratory.

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v, 41 p. : charts, tables

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Fried, Sherman; Friedman, M. A.; Cohen, Donald; Hines, John & Strickert, Richard G. 1978?.

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  • Main Title: Project AN0115A Annual Report, 1977: Migration of Long-Lived Radioactive Processing Wastes in Selected Rocks
  • Added Title: Migration of Long-Lived Radioactive Processing Wastes in Selected Rocks: Annual Report to the Office of Waste Handling, Project AN0115A, FY 1977
  • Serial Title: Project AN0115A Annual Report
  • Series Title: Fiscal Year 1977
  • Added Title: ANL (Series)
  • Added Title: Argonne National Laboratory Report ANL-78-46
  • Series Title: Argonne National Laboratory Reports

Description

Annual report of Argonne National Laboratory project ANO115A. This report discusses research to compare migration of radionuclides in scale models versus the Pu-Am disposal areas at Los Alamos Laboratory.

Physical Description

v, 41 p. : charts, tables

Notes

Partial abstract: Laboratory scale models have been constructed of the plutonium-americium disposal areas at Los Alamos Scientific Laboratory and the migration of radionuclides determined. The laboratory model accounted for the extent and characteristics of the plutonium migration quite well but did not describe as closely the features of the americium migration, probably owing to the differences in the source terms. Vertical distributions of plutonium from the Chalk River Nuclear Laboratory (CRNL) disposal site have been determined on cores of the sandy clay supplied by CRNL. Iodine-129 and technetium-99, nuclides formed in the fission process, would exist as anions; I⁻, IO3⁻, and TcO4⁻ because of the oxidizing conditions in processing. It was found that the migration of these ions was very little retarded by rocks such as LASL tuff and Salem limestone. On the other hand, selected minerals containing copper and sulfur have been found to react strongly to remove these ions from solution and may be potential ''getter'' materials for the fixation of these ions. A study of neptunium chemistry has shown that neptunium(IV) and neptunium(V) are the most likely oxidation states of this element to exist in ground water. While neptunium(IV) is easily immobilized because of its extreme insolubility, neptunium(V) does not bind strongly to many strata. However, it has been shown in this report that minerals containing calcium carbonate or phosphate remove neptunium(V) from solution in ground waters. Groundwater containing Fe(II) can reduce Neptunium(V) to Neptunium(IV) thus converting it to a relatively immobile species. In the modeling experiments described with I⁻, IO3⁻, and TcO4⁻ ions as well as in the previous studies with plutonium, it has been frequently observed that the distribution of the radioactive materials does not correspond to the gaussian distribution predicted by an equilibrium chromatographic calculation.

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  • OCLC: 883328645
  • SuDoc Number: Y 3.AT 7:22/ANL-78-46
  • Report No.: ANL-78-46
  • Grant Number: W-31-109-Eng-38
  • Archival Resource Key: ark:/67531/metadc303749

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  • 1978?

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  • 1976 - 1977

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  • Aug. 4, 2015, 8:33 a.m.

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  • Jan. 11, 2018, 3:40 p.m.

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Fried, Sherman; Friedman, M. A.; Cohen, Donald; Hines, John & Strickert, Richard G. Project AN0115A Annual Report, 1977: Migration of Long-Lived Radioactive Processing Wastes in Selected Rocks, report, 1978?; Argonne, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc303749/: accessed May 28, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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