Construction of the Radioactive Waste Management System

Confirmation of Meeting the Technical Standards

Waste packages must be confirmed to meet the technical standards in regulations and laws regarding disposal. Therefore, developments in waste disposal technology are on going at the DDWM*.

*Dept. of Decommissioning and Waste Management

Technical Standards for Waste Packages Established by METI

Technical Standards for Waste Packages Established by METI

  • ①Radioactive waste must be encapsulated or solidified in the package
  • ②The radioactive concentration of nuclides in the waste package must be lower than the value submitted by the a licensee of the radioactive waste disposal.
  • ③The surface concentration of the waste package must be lower than one-tenth of the surface concentration limit.
  • ④The waste package must not include materials that damage the soundness of the waste package.
  • ⑤The waste package must have enough mechanical strength to bear the maximum load at the time of disposal.
  • ⑥The waste package must have no noticeable damage.
  • ⑦A serial number and a radiation sign must be displayed in a conspicuous location on the surface of the waste package.

Developments for Making Waste Packages that conform to the Standards for the DDWM

  • ○Development of simple and rapid determination methods for the radioactive nuclides included in waste packages.
  • ○Preparation of manuals for the fabrication and measurement of radioactivity in waste packages.

Construction of the Radioactive Waste Management System

A Radioactive Waste Management System was developed in which all of the necessary information (e.g., history and quality information) required for confirmation of waste packages at the time of disposal can be registered in the future.

  • (A)Introduction of IC tags
    IC tags are introduced for the purpose of ensuring the traceability of radioactive wastes treated in large quantities at one time. Mechanical verification of the waste is possible using a mobile terminal in addition to visual confirmation by the workers.
  • (B)System Settings Suited to User's Expectations
    The system was developed with functions that allow different settings for requests.
  • (C)System Suited to Preservation in the Form of Electromagnetic Records
    General information, such as the dose equivalent rate and radioactivity, and information on the quality control of waste packages, such as the processing conditions and methods for each waste package, can be registered in the database in order to meet the requirements for preservation in the form of electromagnetic records as provided in the statute.

放射性廃棄物情報管理システム

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