Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-28T14:58:25.933Z Has data issue: false hasContentIssue false
  • English
  • Français

Wasteforms for waste from advanced reprocessing

Published online by Cambridge University Press:  20 February 2017

Y-H Hsieh ,
D. Horlait ,
S. Humphry-Baker ,
E.R. Vance ,
D.J. Gregg ,
L. Edwards ,
T.D. Waite  and
W.E. Lee
Y-H Hsieh*
Affiliation:
Centre for Nuclear Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
D. Horlait
Affiliation:
Centre for Nuclear Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
S. Humphry-Baker
Affiliation:
Centre for Nuclear Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
E.R. Vance
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organization (ANSTO), Kirrawee, NSW 2232, Australia
D.J. Gregg
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organization (ANSTO), Kirrawee, NSW 2232, Australia
L. Edwards
Affiliation:
Institute of Materials Engineering, Australian Nuclear Science and Technology Organization (ANSTO), Kirrawee, NSW 2232, Australia
T.D. Waite
Affiliation:
School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
W.E. Lee
Affiliation:
Centre for Nuclear Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
*
*(Email: y.hsieh14@imperial.ac.uk)
Get access

Abstract

EURO-GANEX aims to recycle both major and minor actinides. As the final waste composition is free from actinides, adapted immobilization matrices should be developed. Synroc is a potential wasteform that has proven itself to be efficient in immobilizing high-level wastes (HLW). In this study, a new composition of Synroc, Synroc-Z, is designed and characterized. The key modification is in decreasing the amount of zirconolite phase, which is the main host phase for actinides and increasing the amount of other phases (hollandite and perovskite). As designed the obtained amount of zirconolite is lower than in Synroc-C compositions. Synroc-Z samples were synthesized with a waste loading of 20 wt.% at various temperatures and pressures via hot-pressing to determine the optimum process parameters, which were determined to be 1150-1200°C and 20 MPa, respectively.

Keywords

hot pressingwaste managementceramic
Type
Articles
Information
MRS Advances , Volume 1 , Issue 63-64: Scientific Basis for Nuclear Waste Management XXXIX , 2016 , pp. 4255 - 4260
Copyright
Copyright © Materials Research Society 2017 

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

Bourg, S., Hill, C., Caravaca, C., Rhodes, C., Ekberg, C., Taylor, R., Geist, A., Modolo, G., Cassayre, L., Malmbeck, R., Harrison, M., de Angelis, G., Espartero, A., Bouvet, S. and Ouvrier, N.. Nuclear Engineering and Design 241, 3427 (2011).Google Scholar
Aneheim, E., Ekberg, C., Fermvik, A., Foreman, M.R.S.J., Retegan, T. and Skarnemark, G.. Solvent Extraction and Ion Exchange 28, 437 (2010).Google Scholar
Carrott, M., Bell, K., Brown, J., Geist, A., Gregson, C., Hères, X., Maher, C., Malmbeck, R., Mason, C., Modolo, G., Müllich, U., Sarsfield, M., Wilden, A. and Taylor, R.. Solvent Extraction and Ion Exchange 32, 447 (2014).Google Scholar
Malmbeck, R., Carrott, M., Christiansen, B., Geist, A., Hérès, X., Magnusson, D., Modolo, G., Sorel, C., Taylor, R. and Wilden, A., Conference slides from Sustainable Nuclear Energy Conference (Manchester 2014). Available at: http://www.icheme.org/∼/media/Documents/Conferences/SNEC%202014/Presentations/friday-pioneer/Andreas%20GeistEUROGANEX%20a%20Process%20for%20the%20CoSeparation%20of%20TRU.pdf. (accessed 19 January 2017).Google Scholar
Lutze, W. and Ewing, R.C.: Radioactive waste forms for the future, (North-Holland1988).Google Scholar
Ringwood, A.. Mineral. Mag. 49, 159 (1985).Google Scholar
Ringwood, A., Kesson, S., Ware, N., Hibberson, W. and Major, A.. Nature 278, 219 (1979).Google Scholar
Cooper, J., Cousens, D.R., Lewis, R., Myhra, S., Segall, R.L., Smart, R., Turner, P.S. and White, T.J.. Journal of the American Ceramic Society 68, 64 (1985).CrossRefGoogle Scholar
Vance, E.R., Smith, K.L., Thorogood, G.J., Begg, B.D., Moricca, S.S., Angel, P.J., Stewart, M.W.A., Blackford, M.G. and Ball, C.J.. MRS Online Proceedings Library 257, 235 (1991).Google Scholar
Jostsons, A. and Reeve, K.. Trans. Am. Nucl. Soc. 56, 537 (1988).Google Scholar