Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-02T22:39:19.314Z Has data issue: false hasContentIssue false
  • English
  • Français

Partitioning of High-Level Waste as Pretreatment in Waste Management

Published online by Cambridge University Press:  25 February 2011

M. Kubota ,
I. Yamaguchi ,
K. Okada ,
Y. Morita ,
K. Nakano  and
H. Nakamura
M. Kubota
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan
I. Yamaguchi
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan
K. Okada
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan
Y. Morita
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan
K. Nakano
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan
H. Nakamura
Affiliation:
Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, Ibaraki-ken, 319-11, Japan
Get access

Abstract

Removal of the long-lived radionuclides from high-level waste (HLW) is a potential means not only for making wastes more acceptable in terms of long term hazards, but also for alleviating storage requirement. From these points, the authors are developing a method of partitioning actinides, Sr-90 and Cs-137 from HLW. A chemical flow-sheet has been constructed and experiments with actual HLW were initiated in 1982. Through the partitioning, active elements in HLW can be fractionated into 3 groups. Total volume of the solid materials of the 3 groups was calculated and found to be reduced to less than one-third of the volume of the vitrified material containing 10 wt% of fission products as oxide. Such volume reduction seems to facilitate the long term storage or the deep geological disposal of HLW.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 26: Symposium D – Scientific Basis for Nuclear Waste Management VII , 1983 , 551
Copyright
Copyright © Materials Research Society 1984

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

1. Croff, A. G., Blomeke, J. O., Finney, B. C., ORNL-5566 (1980).Google Scholar
2. Blomeke, J. O., Croff, A. G., Nucl. Technol. 56, 361 (1982).10.13182/NT82-A32864CrossRefGoogle Scholar
3. Dworschak, H., Hunt, B. A., IAEA-SM-246/68 (1981).10.1159/000173288Google Scholar
4. Bresesti, M., STI/DOC/10/214 Appendix H (1982).CrossRefGoogle Scholar
5. Kubota, M., Nakamura, H., Tachimori, S., Abe, T., Amano, H., IAEA-SM-246/24 (1981).Google Scholar
6. Bond, W. D., Nucl. Technol. 24, 362 (1974).10.13182/NT74-A31499Google Scholar
7. Jenks, G. H., Y/OWI/TM-42 (1977).Google Scholar