Skip to main content Accessibility help
×
Home

Leaching Studies of Cement-Glass Package Containing Sodium Borate

  • Masahiro Okamoto (a1), Koichi Chino (a2), Tsutomu Baba (a2), Tatsuo Izumida (a2), Fumio Kawamura (a2) and Makoto Kikuchi (a3)...

Abstract

A new solidification technique using cement-glass, which is a mixture of sodium silicate, cement, additives, and initiator of the solidification reaction, was developed for sodium borate liquid waste generated from pressurized water reactor (PWR) plants. The cement-glass could solidify eight times as much sodium borate as cement could, because the solidifying reaction of the cement-glass is not hindered by borate ions.

The reaction mechanism of sodium silicate and phosphoric silicate (initiator), the main components of cement-glass, was studied through X-ray diffraction and compressive strength measurements. It was found that three- dimensionally bonded silicon dioxide was produced by polymerization of the two silicates. The leaching ratio of cesium from the cement-glass package was one-tenth that of the cement one. This low value was attributed to a high cesium adsorption ability of the cement-glass and it could be theoretically predicted accordingly.

Copyright

References

Hide All
1. Kikuchi, M., Chino, K., Kudo, K., Horiuchi, S., Saito, T., and Hayashi, M., in Waste Management '81, edited by Post, R. G. (Arizona Board of Regents, Tucson, 1981) vol.2 pp.547568.
2. Kikuchi, M., Chino, K., Koyama, T., Ito, T., Yusa, H., Horiuchi, S., and Hayashi, M., in Waste Management '82 edited by Post, R. G. (Arizona Board of Regents, Tucson, 1982) vol.2 pp.601610.
3. Okamoto, M., Kawamura, F., Izumida, T., Chino, K., Kikuchi, M., and Mizuno, H., Trans. Am. Nucl. Soc., 49 74 (1985)
4. Seki, S., JAERI Report No. M-9762-,1982
5. Glasser, L. S. Dent, Chemistry in Britain, Jan. 33 (1982)
6. Glasser, L. S. Dent, J. Chem. Soc. Dalton Trans,. 399 (1980)
7. Emura, S., Matsuzuru, H., Hisa, I., and Seki, S., JAERI Report No. M-5779 (1974)
8. Muurine, A., Rantanen, J., and Ovaskainen, R., in Scientific Basis for Nuclear Waste Management VIII, edited by Jantzen, C. M. (Material Research Society, Pittsburge, 1985). pp. 883890

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed