Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-13T03:02:06.150Z Has data issue: false hasContentIssue false
  • English
  • Français

Evaluation of novel leaching assessment of nuclear waste glasses

Published online by Cambridge University Press:  27 December 2016

Clare L. Thorpe ,
Russell J. Hand ,
Neil C. Hyatt ,
Albert A. Kruger ,
David S. Kosson ,
Michael J. Schweiger ,
Brian J. Riley  and
Claire L. Corkhill
Clare L. Thorpe*
Affiliation:
Immobilisation Science Laboratory, Department of Materials Science and Engineering, University of Sheffield, S1 3JD, U.K.
Russell J. Hand
Affiliation:
Immobilisation Science Laboratory, Department of Materials Science and Engineering, University of Sheffield, S1 3JD, U.K.
Neil C. Hyatt
Affiliation:
Immobilisation Science Laboratory, Department of Materials Science and Engineering, University of Sheffield, S1 3JD, U.K.
Albert A. Kruger
Affiliation:
U.S. Department of Energy, Office of River Protection, Richland, WA 99352
David S. Kosson
Affiliation:
Vanderbilt University, School of Engineering, 2301 Vanderbilt Place, Nashville, TN, US 37235
Michael J. Schweiger
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99354
Brian J. Riley
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99354
Claire L. Corkhill
Affiliation:
Immobilisation Science Laboratory, Department of Materials Science and Engineering, University of Sheffield, S1 3JD, U.K.
*
*(Email: clare.thorpe@sheffield.ac.uk)
Get access

Abstract

This study investigates the use of ‘simple’ glasses, comprising six components, to represent the structure of complex LAW glasses proposed for Immobilized Low Activity Wastes from the Hanford site in the USA. The 18 elements present in ILAW glasses LAW A44, ORP LB2, and LAW A23 were represented by Al2O3, B2O3, CaO, Na2O, SiO2, and ZrO2 according to their coordination chemistry and their roles as network formers and modifiers. The dissolution behavior of each ‘simple’ glass was compared to its corresponding candidate “complex” LAW glass through PCT-B tests. Significant differences were observed; the durability of complex glasses was concluded to be LAW A44 > ORP LB2 ≥ LAW A23 whereas in their simplified versions the order was LAW A44 > LAW A23 > ORP LB2. These results are discussed in relation to compositional differences and highlight the importance of minor glass components in controlling glass durability. The implications of these results for the use of simplified glass compositions are discussed.

Keywords

reactivitysurface chemistrysurface reaction
Type
Articles
Information
MRS Advances , Volume 2 , Issue 11: Scientific Basis for Nuclear Waste Management XL , 2017 , pp. 635 - 640
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

U.S. Department of Energy, Design, Construction, and Commissioning of the Hanford Tank Waste Treatment and Immobilization Plant. (Office of River Protection, Richland, WA, DEAC27-01RV14136, 2000).Google Scholar
Garrabrants, A. C., Kosson, D.S., van der Sloot, H.A., et al. , EPA-600/R-10/170. U.S. Environmental Protection Agency, (2010).Google Scholar
Garrabrants, A.C., Kosson, D.S., DeLapp, R., et al. , EPA/600/R-12/624, U.S. EPA Office of Research and Development, Air Pollution Control Division, (2012).Google Scholar
Garrabrants, A.C., Kosson, D.S., Sefanski, L., et al. , EPA/600/R-12/623, U.S. EPA Office of Research and Development, Air Pollution Control Division, (2012).Google Scholar
Gin, S., Abdelouas, A., Criscenti, J.L., et al. , Mater. Today, 16, 243, (2013).CrossRefGoogle Scholar
ASTM C1285-14, ASTM International, West Conshohocken, Pennsylvania.Google Scholar
Shelby, J.E., Introduction to Glass Science & Technology, 2nd ed. (Royal Society of Chemistry, Cambridge, 2005) p. 90.CrossRefGoogle Scholar