Title:
DECONTAMINATION DEVICE AND DECONTAMINATION METHOD FOR RADIOACTIVE CONTAMINATED MATERIAL
Document Type and Number:
WIPO Patent Application WO/2013/145237
Kind Code:
A1
Abstract:
A device for decontaminating a radioactive contaminated material, comprising: a grinder (12) for grinding the radioactive contaminated material (11) which contains cellulose, hemicelluloses and lignin and has been contaminated with a radioactive substance; and a hydrothermal decomposition device (13) for counter-contacting the supplied radioactive contaminated material (11), which has been ground by the grinder (12), with pressurized hot water (14), thus allowing the migration of the radioactive substance, together with the hemicelluloses and lignin, into the hot water side and extracting the same as hot water-soluble matters (16) in hot water drainage, while extracting cellulose-containing solid matters, from which the radioactive substance has been removed, as hot water-insoluble matters (solids) (15), from a side different from the side from which the hot water drainage is discharged.
Inventors:
GENTA MINORU
TERAKURA SEIICHI
TERAKURA SEIICHI
Application Number:
PCT/JP2012/058461
Publication Date:
October 03, 2013
Filing Date:
March 29, 2012
Export Citation:
Assignee:
MITSUBISHI HEAVY IND MECHATRONICS SYSTEMS LTD (JP)
GENTA MINORU
TERAKURA SEIICHI
GENTA MINORU
TERAKURA SEIICHI
International Classes:
G21F9/28; G21F9/30
Domestic Patent References:
| WO2012029182A1 | 2012-03-08 |
Foreign References:
| JP2010107450A | 2010-05-13 | |||
| JP3173713U | 2012-02-16 |
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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