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Title: Reduction And Sequestration Of Pertechnetate To Technetium Dioxide And Protection From Reoxidation

Abstract

This effort is part of the technetium management initiative and provides data for the handling and disposition of technetium. To that end, the objective of this effort was to challenge tin(lI)apatite (Sn(II)apatite) against double-shell tank 241-AN-105 simulant spiked with pertechnetate (TcO{sub 4}). The Sn(II)apatite used in this effort was synthesized on site using a recipe developed at and provided by Sandia National Laboratories; the synthesis provides a high quality product while requiring minimal laboratory effort. The Sn(ll)apatite reduces pertechnetate from the mobile +7 oxidation state to the non-mobile +4 oxidation state. It also sequesters the technetium and does not allow for re-oxidization to the mobile +7 state under acidic or oxygenated conditions within the tested period of time (6 weeks). Previous work indicated that the Sn(II) apatite can achieve an ANSI leachability index in Cast Stone of 12.8. The technetium distribution coefficient for Sn(lI)apatite exhibited a direct correlation with the pH of the technetium-spiked simulant media.

Authors:
 [1];  [2];  [3];  [4];  [2];  [1];  [2]
  1. Washington River Protection Solutions LLC, Richland , WA (United States)
  2. Center for Laboratory Sciences, Pasco, WA (United States)
  3. Sandia National Laboratories, Albuquerque, NM (United States)
  4. AREVA Federal Services LLC, Richland , WA (United States)
Publication Date:
Research Org.:
Hanford Site (HNF), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (United States)
OSTI Identifier:
1055733
Report Number(s):
WRPS-1202615-FP Rev 0
TRN: US1300296
DOE Contract Number:  
DE-AC27-08RV14800
Resource Type:
Conference
Resource Relation:
Conference: WM2013 Conference, Phoenix, Arizona (United States), 24-28 Feb 2013
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES

Citation Formats

Duncan, J. B., Johnson, J. M., Moore, R. C., Hagerty, K., Rhodes, R. N., Huber, H. J., and Moore, W. P. Reduction And Sequestration Of Pertechnetate To Technetium Dioxide And Protection From Reoxidation. United States: N. p., 2012. Web.
Duncan, J. B., Johnson, J. M., Moore, R. C., Hagerty, K., Rhodes, R. N., Huber, H. J., & Moore, W. P. Reduction And Sequestration Of Pertechnetate To Technetium Dioxide And Protection From Reoxidation. United States.
Duncan, J. B., Johnson, J. M., Moore, R. C., Hagerty, K., Rhodes, R. N., Huber, H. J., and Moore, W. P. Wed . "Reduction And Sequestration Of Pertechnetate To Technetium Dioxide And Protection From Reoxidation". United States. https://www.osti.gov/servlets/purl/1055733.
@article{osti_1055733,
title = {Reduction And Sequestration Of Pertechnetate To Technetium Dioxide And Protection From Reoxidation},
author = {Duncan, J. B. and Johnson, J. M. and Moore, R. C. and Hagerty, K. and Rhodes, R. N. and Huber, H. J. and Moore, W. P.},
abstractNote = {This effort is part of the technetium management initiative and provides data for the handling and disposition of technetium. To that end, the objective of this effort was to challenge tin(lI)apatite (Sn(II)apatite) against double-shell tank 241-AN-105 simulant spiked with pertechnetate (TcO{sub 4}). The Sn(II)apatite used in this effort was synthesized on site using a recipe developed at and provided by Sandia National Laboratories; the synthesis provides a high quality product while requiring minimal laboratory effort. The Sn(ll)apatite reduces pertechnetate from the mobile +7 oxidation state to the non-mobile +4 oxidation state. It also sequesters the technetium and does not allow for re-oxidization to the mobile +7 state under acidic or oxygenated conditions within the tested period of time (6 weeks). Previous work indicated that the Sn(II) apatite can achieve an ANSI leachability index in Cast Stone of 12.8. The technetium distribution coefficient for Sn(lI)apatite exhibited a direct correlation with the pH of the technetium-spiked simulant media.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Conference:
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