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Cold Crucible Vitrification of U-bearing SRS SB4 HLW Surrogate

Published online by Cambridge University Press:  01 February 2011

Sergey Stefanovsky ,
Alexander Ptashkin ,
Oleg Knyazev ,
Olga Stefanovsky  and
James C Marra
Sergey Stefanovsky
Affiliation:
[email protected], SIA Radon, 7th Rostovskii lane 2/14, Moscow, 119121, Russian Federation
Alexander Ptashkin
Affiliation:
[email protected], SIA Radon, Moscow, Russian Federation
Oleg Knyazev
Affiliation:
[email protected], SIA Radon, Moscow, Russian Federation
Olga Stefanovsky
Affiliation:
[email protected], SIA Radon, Moscow, Russian Federation
James C Marra
Affiliation:
[email protected], Savannah River National Laboratory, Aiken, South Carolina, United States
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Abstract

Savannah River Site Defense Waste Processing Facility (DWPF) Sludge Batch 4 (SB4) high level waste (HLW) simulant at 55 wt % waste loading was produced in the demountable cold crucible and cooled to room temperature in the cold crucible. Appreciable losses of Cs, S and Cl took place during the melting. A second glass sample was subjected to canister centerline cooling (CCC) regime in an alumina crucible in a resistive furnace. X-ray diffraction (XRD) study showed that the glass blocks were composed of vitreous and spinel structure phases. No separate U-bearing phases were found.

Keywords

waste managementUx-ray diffraction (XRD)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1265: Symposium AA – Scientific Basis for Nuclear Waste Management XXXIV , 2010 , 1265-AA02-03
Copyright
Copyright © Materials Research Society 2010

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References

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