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Behavior of Actinide Ions During Sludge Washing of Alkaline Radioactive Wastes

Published online by Cambridge University Press:  10 February 2011

Andrew H. Bond ,
Kenneth L. Nash ,
Artem V. Gelis ,
Mark P. Jensen ,
James C. Sullivan  and
Linfeng Rao
Andrew H. Bond
Affiliation:
Chemistry Division, Argonne National Laboratory, Argonne, IL, 60439 USA
Kenneth L. Nash
Affiliation:
Chemistry Division, Argonne National Laboratory, Argonne, IL, 60439 USA
Artem V. Gelis
Affiliation:
Chemistry Division, Argonne National Laboratory, Argonne, IL, 60439 USA
Mark P. Jensen
Affiliation:
Chemistry Division, Argonne National Laboratory, Argonne, IL, 60439 USA
James C. Sullivan
Affiliation:
Chemistry Division, Argonne National Laboratory, Argonne, IL, 60439 USA
Linfeng Rao
Affiliation:
MS 70A- 1150, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
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Abstract

It is difficult to accurately predict actinide behavior during the alkaline leaching of Hanford's radioactive sludges due to the diverse chemical and radiolytic conditions existing in these wastes. The results of Pu dissolution during experimental washing of sludge simulants from the BiPO4, Redox, and PUREX processes shows that ≥2.1% Pu is dissolved during contact with alkaline media, but up to 65.5% Pu may be dissolved in acidic media. The dissolution of Cr, Fe, Nd, and Mn has also been observed, and the results of solid state, radioanalytical, and spectroscopic investigations are detailed.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 608: Symposium QQ – Scientific Basis for Nuclear Waste Management XXIII , 1999 , 595
Copyright
Copyright © Materials Research Society 2000

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References

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