METHOD FOR TREATING ION EXCHANGE RESIN IN DECONTAMINATION WORK

申请公布号：JP2000206293(A)

申请号：JP19990010066

申请日期：1999.01.19

申请公布日期：2000.07.28

申请人：

TOSHIBA CORP;TOSHIBA ENG CO LTD

发明人：KANEZAKI TAKESHI;KAJINUMA HITOSHI

分类号：B01J49/00;G21F9/28;G21F9/30

主分类号：B01J49/00

摘要：PROBLEM TO BE SOLVED: To provide a method for treating an ion exchange resin in chemical decontamination that needs the fewest possible ion exchange resin towers and makes it possible to locate them in a small space, shorten preparation and restoration work and reduce the exposure dose of radiation. SOLUTION: In a method for treating an ion exchange resin by which chemical decontamination treatment is conducted for pipes or equipment of nuclear power plant facilities by passing a decontamination liquid through an object 15 to be decontaminated and metal ions dissolved by the decontamination liquid and involving radioactive contamination are recovered by an ion exchange resin tower 45 or 46, a resin exhaust nozzle 49 is placed in the ion exchange resin tower 45 or 46 and a used ion exchange resin is transferred from the resin exhaust nozzle 49 through a resin exhaust line 51 to a resin storage tank 64 during decontamination work.

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