Waste acceptance criteria for waste packages destined for near surface disposal containing radioactive waste from research, industrial and medical facilities; Study on a method that fills voidage in waste package with sandy soil

Nakata, Hisakazu; Hayashi, Hirokazu; Amazawa, Hiroya; Sakai, Akihiro

JAEA-Technology 2017-031, 41 Pages, 2018/01

JAEA-Technology-2017-031.pdf:5.27MB

JAEA plans to install disposal facilities for radioactive waste arising from research institutes. It must meet the technical standards specified in the relevant rule. One technical standard is that the disposal facilities shall be performance so as not to be left with the voids after the backfilling with soil. Additionally, the rule also requires this radioactive waste be enclosed in a container in which no harmful voids remain. In order to contribute to the development of a method that adapts the disposal facilities to these technical standards, JAEA adopts a waste conditioning artifice that aims for reducing a quantity of voidage in each waste container by a vibration filling method using sandy soil, providing with average void ratios inside the disposal facilities being adequately controlled. In this reports, filling property tests are conducted in the light of filling sand characteristics, types of metal waste and vibration conditions.

The Migration behavior of Np(V) in sandy soil and granite media in the pressence of humic substances

Sakamoto, Yoshiaki; Nagao, Seiya; Ogawa, Hiromichi; Rao, R. R.*

Radiochimica Acta, 88(9-11), p.651 - 656, 2000/09

https://doi.org/10.1524/ract.2000.88.9-11.651

no abstracts in English

Migration behavior of Eu(III) in sandy soil in the presence of dissolved organic materials

Nagao, Seiya; R.R.Rao*; R.W.D.Killey*; J.L.Young*

Radiochimica Acta, 82, p.205 - 211, 1998/00

https://doi.org/10.1524/ract.1998.82.special-issue.205

no abstracts in English

Migration behavior of Sr under discontinuous flow condition

Tanaka, Tadao; Yamamoto, Tadatoshi

Radioisotopes, 43(7), p.389 - 396, 1994/07

https://doi.org/10.3769/radioisotopes.43.389

no abstracts in English

Influence of soil/solution ratio on adsorption behavior of cesium on soils

Tanaka, Tadao; Onuki, Toshihiko

Geochemical Journal, 28(5), p.369 - 376, 1994/00

https://doi.org/10.2343/geochemj.28.369

no abstracts in English

Consecutive determination of pentavalent neptunium by spectrophotometric method

Tanaka, Tadao; Kamiyama, Hideo

JAERI-M 93-035, 22 Pages, 1993/03

JAERI-M-93-035.pdf:0.54MB

no abstracts in English

Characteristics of migration of Sr and Cs in alkaline solution through sandy soil

Onuki, Toshihiko

Mater. Res. Soc. Symp. Proc., Vol. 212, p.609 - 616, 1991/00

no abstracts in English