Refine your search:     
Report No.
 - 
Search Results: Records 1-10 displayed on this page of 10
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

JAEA Reports

Annual report for FY2021 on the activities of Department of Decommissioning and Waste Management (April 1, 2021 - March 31, 2022)

Department of Decommissioning and Waste Management

JAEA-Review 2023-001, 136 Pages, 2023/06

JAEA-Review-2023-001.pdf:10.65MB

This report describes the activities of Department of Decommissioning and Waste Management (DDWM) in Nuclear Science Research Institute (NSRI) in the period from April 1, 2021 to March 31, 2022. The report covers organization and missions of DDWM, outline and operation/maintenance of facilities which belong to DDWM, treatment and management of radioactive wastes, decommissioning activities, and related research and development activities which were conducted in DDWM. In FY2021 radioactive wastes generated from R&D activities in NSRI were treated safely. They were about 206 m$$^{3}$$ of combustible solid wastes and 155 m$$^{3}$$ of noncombustible solid wastes and 113 m$$^{3}$$ of liquid wastes. After adequate treatment, 760 waste packages (in 200 L-drum equivalent) were generated. The total amounts of accumulated waste packages were 126,827 as of the end of FY2021 due to efforts of the restitution of waste packages to the Japan Radioisotope Association and volume reduction treatments of the stored waste packages. Decommissioning activities were carried out for the JAEA's Reprocessing Test Facility (JRTF), the Liquid Waste Treatment Facilities, the Compaction Facilities, and Fusion Neutronics Source (FNS) facilities. As for the R&D activities, studies on radiochemical analyses of wastes for disposal were continued. In order to pass the conformity review on the New Regulatory Requirements for waste management facilities, the Approval of the design and construction method was applied sequentially for the Nuclear Regulation Authority. The ministry of the Environment and Tokai-mura office requested JAEA to dispose of the contaminated soil generated by the accident of the Fukushima Daiichi Nuclear Power Station. The monitoring work at the playground was conducted during this period.

JAEA Reports

Annual report for FY2020 on the activities of Department of Decommissioning and Waste Management (April 1, 2020 - March 31, 2021)

Department of Decommissioning and Waste Management

JAEA-Review 2022-001, 112 Pages, 2022/06

JAEA-Review-2022-001.pdf:6.51MB

This report describes the activities of Department of Decommissioning and Waste Management (DDWM) in Nuclear Science Research Institute (NSRI) in the period from April 1, 2020 to March 31, 2021. The report covers organization and missions of DDWM, outline and operation/maintenance of facilities which belong to DDWM, treatment and management of radioactive wastes, decommissioning activities, and related research and development activities which were conducted in DDWM. In FY2020 radioactive wastes generated from R&D activities in NSRI were treated safely. They were about 267 m$$^{3}$$ of combustible solid wastes and 233 m$$^{3}$$ of noncombustible solid wastes and 78 m$$^{3}$$ of liquid wastes. After adequate treatment, 1,448 waste packages (in 200 L-drum equivalent) were generated. The total amounts of accumulated waste packages were 130,604 as of the end of FY2020 due to efforts of the restitution of waste packages to the Japan Radioisotope Association and volume reduction treatments of the stored waste packages. Decommissioning activities were carried out for the JAEA's Reprocessing Test Facility (JRTF), the Liquid Waste Treatment Facilities, the Compaction Facilities, and Fusion Neutronics Source (FNS) facilities. As for the R&D activities, studies on radiochemical analyses of wastes for disposal were continued. In order to pass the conformity review on the New Regulatory Requirements for waste management facilities, the Approval of the design and construction method was applied sequentially for the Nuclear Regulation Authority. The ministry of the Environment and Tokai-mura office requested JAEA to dispose of the contaminated soil generated by the accident of the Fukushima Daiichi Nuclear Power Station. The monitoring work at the playground was conducted during this period.

JAEA Reports

Development of radioactive waste information management system at Nuclear Science Research Institute

Tsuchimochi, Akari; Suda, Shoya; Fujikura, Toshiki; Kawahara, Takahiro; Hoshi, Akiko

JAEA-Technology 2021-018, 37 Pages, 2021/10

JAEA-Technology-2021-018.pdf:2.87MB

A large amount of radioactive waste has been generated in the process of research and development in Nuclear Science Research Institute. We store the equivalent of 130,604 drums (200L) of that in our storage facilities (as of March 31, 2021) and have been developing "Radioactive Waste Information Management System" to manage them for disposal. The system started designing in FY2007 and has been in operation since FY2012. After the start of operation, it has been repaired as appropriate. In this report, we summarized the development and improvement of the system.

JAEA Reports

Annual report for FY2019 on the activities of Department of Decommissioning and Waste Management (April 1, 2019 - March 31, 2020)

Department of Decommissioning and Waste Management

JAEA-Review 2021-002, 105 Pages, 2021/05

JAEA-Review-2021-002.pdf:9.68MB

This report describes the activities of Department of Decommissioning and Waste Management (DDWM) in Nuclear Science Research Institute (NSRI) in the period from April 1, 2019 to March 31, 2020. The report covers organization and missions of DDWM, outline and operation/maintenance of facilities which belong to DDWM, treatment and management of radioactive wastes, decommissioning activities, and related research and development activities which were conducted in DDWM. In FY2019 radioactive wastes generated from R&D activities in NSRI were treated safely. They were about 323 m$$^{3}$$ of noncombustible solid wastes and 111 m$$^{3}$$ of liquid wastes. After adequate treatment, 2,588 waste packages (in 200 L-drum equivalent) were generated. The total amounts of accumulated waste packages were 130,223 as of the end of FY2019 due to efforts of the restitution of waste packages to the Japan Radioisotope Association and volume reduction treatments of the stored waste packages. Decommissioning activities were carried out for the JAEA's Reprocessing Test Facility (JRTF), the Liquid Waste Treatment Facilities, the Decontamination Facilities, and Fusion Neutronics Source (FNS) facilities. As for the R&D activities, studies on radiochemical analyses of wastes for disposal were continued. In order to pass the conformity review on the New Regulatory Requirements for waste management facilities, the Approval of the design and construction method was applied sequentially for the Nuclear Regulation Authority. The ministry of the Environment and Tokai-mura office requested JAEA to dispose of the contaminated soil generated by the accident of the Fukushima Daiichi Nuclear Power Plant. The monitoring work at the playground was conducted during this period.

JAEA Reports

Annual report for FY2018 on the activities of Department of Decommissioning and Waste Management (April 1, 2018 - March 31, 2019)

Department of Decommissioning and Waste Management

JAEA-Review 2020-012, 103 Pages, 2020/08

JAEA-Review-2020-012.pdf:8.17MB

This report describes the activities of Department of Decommissioning and Waste Management (DDWM) in Nuclear Science Research Institute (NSRI) in the period from April 1, 2018 to March 31, 2019. The report covers organization and missions of DDWM, outline and operation/maintenance of facilities which belong to DDWM, treatment and management of radioactive wastes, decommissioning activities, and related research and development activities which were conducted in DDWM.

JAEA Reports

Maintenance of the Evaporator-II in Waste Treatment Facility No.2 (FY2015)

Handa, Yuichi; Nakajima, Ryota; Yonekawa, Akihisa*; Takatsu, Kazuki; Kinoshita, Junichi; Irie, Hirobumi; Suzuki, Hisao*

JAEA-Technology 2020-005, 22 Pages, 2020/06

JAEA-Technology-2020-005.pdf:6.43MB

The Evaporator-II is installed in Waste Treatment Facility No.2. The evaporator system treats intermediate level radioactive liquid waste for Nuclear Science Research Institute and more. It is maintenance the evaporator can once/3years by the maintenance plan. The evaporator can is important unit of the Evaporator-II system. This report summarizes record of maintenance the Evaporator-II in FY2015.

JAEA Reports

Annual report for FY2017 on the activities of Department of Decommissioning and Waste Management (April 1, 2017 - March 31, 2018)

Department of Decommissioning and Waste Management

JAEA-Review 2019-011, 91 Pages, 2019/10

JAEA-Review-2019-011.pdf:5.25MB

This report describes the activities of Department of Decommissioning and Waste Management (DDWM) in Nuclear Science Research Institute (NSRI) in the period from April 1, 2017 to March 31, 2018. The report covers organization and missions of DDWM, outline and operation/maintenance of facilities which belong to DDWM, treatment and management of radioactive wastes, decommissioning activities, and related research and development activities which were conducted in DDWM.

JAEA Reports

Annual report for FY2016 on the activities of Department of Decommissioning and Waste Management (April 1, 2016 - March 31, 2017)

Department of Decommissioning and Waste Management

JAEA-Review 2018-008, 87 Pages, 2018/07

JAEA-Review-2018-008.pdf:2.67MB

This report describes the activities of Department of Decommissioning and Waste Management (DDWM) in Nuclear Science Research Institute (NSRI) in the period from April 1, 2016 to March 31, 2017. The report covers organization and missions of DDWM, outline and operation/maintenance of facilities which belong to DDWM, treatment and management of radioactive wastes, decommissioning activities, and related research and development activities which were conducted in DDWM.

JAEA Reports

Homogeneity confirmation test of bituminized products

Kinoshita, Junichi; Endo, Masayuki; Uesaka, Takahiro

JAEA-Testing 2012-003, 29 Pages, 2012/11

JAEA-Testing-2012-003.pdf:2.95MB

The comparatively high level liquid radioactive wastes generated from the nuclear facilities in the Nuclear Science Research Institute of JAEA have been treated by the bituminization system. In the future, bituminized products could be disposed of as homogeneously solidified products, if their qualities would meet with the technical standards of homogeneously solidified products which are stipulated in nuclear regulatory law. In this report, we summarized the measurement results of the density and radioactivity of solidified products in order to get basic data for future disposal.

JAEA Reports

Integrity evaluation of removable lid type shielded container

Uesaka, Takahiro; Kozawa, Masachiyo; Matsumoto, Junko; Endo, Masayuki; Kinoshita, Junichi; Suzuki, Takeshi; Suzuki, Hisao; Morishita, Satoru; Sakamoto, Yu

JAEA-Technology 2012-015, 29 Pages, 2012/06

JAEA-Technology-2012-015.pdf:3.22MB

In Japan Atomic Energy Agency Nuclear Science Research Institute waste treatment building No.2 treat intermediate-level solid waste. Solid wastes are reduced in volume by compaction. They are then canned in stainless can, which are subsequently put in 200-liter concrete-lined drums or 1-m$$^{3}$$ concrete containers, filled with concrete. To prepare for disposal in future, be able to make fit with the technical standard of waste package, we were asked to change the lid type shielded container. Therefore due to the change of lid type shielded container, we confirmed integrity of it with evaluation of close volt by drop analysis, evaluation of shielding, and drop test with a prototype model.

10 (Records 1-10 displayed on this page)
  • 1