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1. (WO1989000753) METHOD AND APPARATUS FOR SOLIDIFYING RADIOACTIVE WASTE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000753 International Application No.: PCT/JP1988/000596
Publication Date: 26.01.1989 International Filing Date: 17.06.1988
IPC:
G21F 9/00 (2006.01) ,G21F 9/30 (2006.01) ,G21F 9/34 (2006.01)
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
F
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9
Treating radioactively contaminated material; Decontamination arrangements therefor
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
F
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9
Treating radioactively contaminated material; Decontamination arrangements therefor
28
Treating solids
30
Processing
G PHYSICS
21
NUCLEAR PHYSICS; NUCLEAR ENGINEERING
F
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
9
Treating radioactively contaminated material; Decontamination arrangements therefor
28
Treating solids
34
Disposal of solid waste
Applicants:
HITACHI, LTD. [JP/JP]; 6, Kanda Surugadai 4-chome Chiyoda-ku Tokyo 101, JP (AllExceptUS)
KURIYAMA, Osamu [JP/JP]; JP (UsOnly)
FUNABASHI, Kiyomi [JP/JP]; JP (UsOnly)
BABA, Tsutomu [JP/JP]; JP (UsOnly)
MATSUDA, Masami [JP/JP]; JP (UsOnly)
CHINO, Koichi [JP/JP]; JP (UsOnly)
KIKUCHI, Jun [JP/JP]; JP (UsOnly)
Inventors:
KURIYAMA, Osamu; JP
FUNABASHI, Kiyomi; JP
BABA, Tsutomu; JP
MATSUDA, Masami; JP
CHINO, Koichi; JP
KIKUCHI, Jun; JP
Agent:
OGAWA, Katsuo; Patent Department of Hitachi, Ltd. 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo 100, JP
Priority Data:
62/17102810.07.1987JP
Title (EN) METHOD AND APPARATUS FOR SOLIDIFYING RADIOACTIVE WASTE
(FR) PROCEDE ET INSTALLATION DE SOLIDIFICATION DE DECHETS RADIOACTIFS
Abstract:
(EN) When a radioactive solid waste is packed into a container for producing a solidified product and then a solidifying agent is poured thereinto in the present invention, the solidifying agent is poured into the gaps defined by the radioactive solid wastes themselves or by the radioactive wastes and the container for producing the solidified member by utilizing pressure reduction in space experienced after pouring of the solidifying agent in comparison with the pressure of space at the time of pouring the solidifying agent. Thus, the solidified product of the radioactive wastes having fewer voids and suitable for disposal on or in land is formed.
(FR) Lorsqu'on entasse des déchets radioactifs solides dans un récipient pour obtenir un produit solidifié et qu'on verse dans ledit récipient un agent solidifiant, ce dernier remplit les interstices entre les déchets radioactifs solides ou entre les déchets et les parois du récipient. On obtient le produit solidifié en utilisant la réduction de pression dans l'espace survenant après qu'on a versé l'agent solidifiant, par rapport à la pression dans l'espace à l'instant où l'on verse l'agent solidifiant. On forme ainsi un produit solidifié contenant les déchets radioactifs, présentant moins de cavités et indiqué pour l'entreposage souterrain ou en surface.
Designated States: US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP0335974US5045241