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Title:
DECONTAMINATION METHOD AND DECONTAMINATION DEVICE FOR RADIOACTIVE WASTE ION EXCHANGE RESIN
Document Type and Number:
Japanese Patent JP2015081898
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To remove an ionic radioactive matter in waste ion exchange resin, and reduce dose of the waste ion exchange resin to the extremely low level by solving and removing clad.SOLUTION: Acid which is heated to equal to or more than 60°C is brought into contact to waste ion exchange resin including clad mainly formed of ion oxide and absorbing a radioactive matter, for solving and removing the ionic radioactive matter in the waste ion exchange resin, and removing the clad. The acid waste liquid including the ionic radioactive matter used for decontamination is subjected to electro-deposition treatment, circulated and reused.

Inventors:
MIYAMOTO SHINGO
IWASAKI MAMORU
AIZAWA MOTOHIRO
OTA NOBUYUKI
SUMIYA TAKAKO
ISHIDA KAZUNARI
Application Number:
JP2013221321A
Publication Date:
April 27, 2015
Filing Date:
October 24, 2013
Export Citation:
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Assignee:
KURITA WATER IND LTD
HITACHI GE NUCLEAR ENERGY LTD
International Classes:
G21F9/30; C25C1/06; C25C1/08; G21F9/06; G21F9/12; G21F9/28
Domestic Patent References:
JPH0843595A1996-02-16
JP2013044588A2013-03-04
JP2006078336A2006-03-23
JPS63175800A1988-07-20
JP4438988B22010-03-24
JP2004028697A2004-01-29
JPS5784399A1982-05-26
JP2012108073A2012-06-07
JP2013185938A2013-09-19
JPS61254899A1986-11-12
JP2003004894A2003-01-08
Foreign References:
US5835865A1998-11-10
Attorney, Agent or Firm:
Tsuyoshi Shigeno



 
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