EP 0196843 A1 19861008 - Dewatering nuclear wastes.
Title (en)
Dewatering nuclear wastes.
Title (de)
Entfeuchtung von nuklearen Abfällen.
Title (fr)
Déshydratation de déchets nucléaires.
Publication
Application
Priority
US 71500685 A 19850322
Abstract (en)
A method of dewatering a solution or slurry that contains radioactive particles to a condition satisfactory for permanent storage. Free standing water is removed from the slurry, and then a sufficient quantity of water is removed from the particles so that at the permanent storage temperature the particles will be unsaturated with respect to adsorbed water and will act as their own desiccant during the course of the permanent storage regimen. The adsorbed waters are preferably removed by evaporation after substantially all interstitial water is removed, and most preferably by causing low humidity air to flow at sufficient velocity uniformly through the particle bed.
IPC 1-7
IPC 8 full level
C02F 11/12 (2006.01); G21F 9/08 (2006.01); G21F 9/30 (2006.01)
CPC (source: EP)
G21F 9/08 (2013.01)
Citation (search report)
- [A] US 1948313 A 19340220 - NEST POWELSON WILFRID VAN
- [A] US 4234448 A 19801118 - HIRANO MIKIO, et al
- [A] GB 2113902 A 19830810 - NUKLEAR SERVICE GMBH GNS
- [A] GB 2006414 A 19790502 - BRAUNSCHWEIGISCHE MASCH BAU
- [A] US 4040973 A 19770809 - SZIVOS KAROLY, et al
- [A] US 4043050 A 19770823 - HANCOCK FRANK JOHN THOMPSON
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0196843 A1 19861008; ES 553279 A0 19900216; ES 557250 A0 19890316; ES 8900207 A1 19890316; ES 9000018 A1 19900216; JP S61251798 A 19861108
DOCDB simple family (application)
EP 86302115 A 19860321; ES 553279 A 19860321; ES 557250 A 19861210; JP 6467486 A 19860322