Radionuclide Leaching from Residual Solids Remaining after Acid Dissolution of K East Area Sludge Composite

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Description

Laboratory tests were performed to examine the efficacy of various leach treatments for decontaminating dissolver residual solids (KEACRESID1) produced during a 24-hour dissolution of K East Basin floor and Weasel Pit sludge composite in boiling 6 M HNO{sub 3}. The scope of this testing has been described in Section 4.5 of ''Testing Strategy to Support the Development of K Basin Sludge Treatment Process'' (Flament 1998). Radionuclides sorbed or associated with the residual solids generated in the K Basin sludge treatment process can restrict disposal of this solid to the Environmental Restoration Disposal Facility (ERDF). The starting dissolver residual solid for ... continued below

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17 p.

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Delegard, C.H.; Rinehart, D.E.; Carlson, C.D.; Soderquist, C.Z. & Fadeff, S.K. April 2, 1999.

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Description

Laboratory tests were performed to examine the efficacy of various leach treatments for decontaminating dissolver residual solids (KEACRESID1) produced during a 24-hour dissolution of K East Basin floor and Weasel Pit sludge composite in boiling 6 M HNO{sub 3}. The scope of this testing has been described in Section 4.5 of ''Testing Strategy to Support the Development of K Basin Sludge Treatment Process'' (Flament 1998). Radionuclides sorbed or associated with the residual solids generated in the K Basin sludge treatment process can restrict disposal of this solid to the Environmental Restoration Disposal Facility (ERDF). The starting dissolver residual solid for this testing, KEACRESID1, is a visibly heterogeneous material. This material contains radionuclides at concentrations above the ERDF Waste Acceptance Criteria for transuranics (TRU) by about a factor of 3, for {sup 239}Pu by a factor of 10, and for {sup 241}Am by a factor of 1.6. It meets the ERDF criterion for {sup 137}Cs by a factor of 4 and for uranium by a factor of 10. Therefore, the radionuclides of greatest interest in this leaching study are first {sup 239}Pu, and then {sup 241}Am, {sup 137}Cs, and uranium.

Physical Description

17 p.

Notes

INIS; OSTI as DE00005105

Medium: P; Size: 17 pages

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  • Other Information: PBD: 2 Apr 1999

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  • Report No.: PNNL-12104
  • Grant Number: AC06-76RL01830
  • DOI: 10.2172/5105 | External Link
  • Office of Scientific & Technical Information Report Number: 5105
  • Archival Resource Key: ark:/67531/metadc693138

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  • April 2, 1999

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 7, 2017, 3:45 p.m.

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Delegard, C.H.; Rinehart, D.E.; Carlson, C.D.; Soderquist, C.Z. & Fadeff, S.K. Radionuclide Leaching from Residual Solids Remaining after Acid Dissolution of K East Area Sludge Composite, report, April 2, 1999; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc693138/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.