Decommissioning of uranium handling facility for development of nuclear fuel manufacturing equipment

Kageyama, Tomio; Denuma, Akio; Koizumi, Jin*; Odakura, Manabu*; Haginoya, Masahiro*; Isaka, Shinichi*; Kadowaki, Hiroyuki*; Kobayashi, Shingo*; Morimoto, Taisei*; Kato, Yoshiaki*; et al.

JAEA-Technology 2022-033, 130 Pages, 2023/03

JAEA-Technology-2022-033.pdf:9.87MB

Uranium handling facility for development of nuclear fuel manufacturing equipment (Mockup room) was constructed in 1972. The Mockup room has a weak seismic resistance and is deteriorating with age. Also, the original purpose with this facility have been achieved and there are no new development plans using this facility. Therefore, interior equipment installed in this facility had been dismantled and removed since March 2019. After that, the Mockup room was inspected for contamination, and then controlled area in the Mockup room was cancelled on March 29th 2022. A total of 6,549 workers (not including security witnesses) were required for this work. The amount of non-radioactive waste generated by this work was 31,300 kg. The amount of radioactive waste generated by this work was 3,734 kg of combustible waste (103 drums), 4,393 kg of flame resistance waste (61 drums), 37,790 kg of non-combustible waste (124 drums, 19 containers). This report describes about the dismantling and removing the interior equipment in the Mockup room, the amount of waste generated by this work, and procedure for cancellation the controlled area in the facility.

The calculation and estimation of wastes generated by decommissioning of nuclear facilities

; ; ; Takeda, Seiichiro

JNC TN8420 2001-008, 134 Pages, 2001/07

JNC-TN8420-2001-008.pdf:4.4MB

This investigation was conducted as a part of planning the low-level radioactive waste management program (LLW management program). The aim of this investigation was contributed to compile the radioactive waste database of JNC's LLW management program. All nuclear facilities of the Tokai works and Ningyo-toge Environmental Engineering Center were investigated in this work. The wastes generated by the decomissioning of each nuclear facility were classified into radioactive waste and others (exempt waste and non-radioactive waste), and the amount of the wastes was estimated. The estimated amounts of radioactive wastes generated by decomissioning of the nuclear facilities are as follows. (1)Tokai works. The amount of waste generated by decommissioning of nuclear facilities of the Tokai works is about 1,079,100 ton. The amount of radioactive waste is about 15,400 ton. The amount of exempt waste and non-radioactive waste is about 1,063,700 ton. (2)Ningyo-toge Environmental Engineering Center. The amount of waste generated by decommissioning of nuclear facilities of Ningyo-toge Environmental Engineering Center is about 112,500 ton. The amount of radioactive waste is about 7,800 ton. The amount of exempt waste and non-radioactive waste is about 104,700 ton.

Record on renewal of exhaust ducts 2F and 3F of research building No.4

Adachi, Takeo; Ito, Mitsuo; ; Takeishi, Hideyo; ; ; ; ; ; ; et al.

JAERI-Tech 98-053, 46 Pages, 1998/12

JAERI-Tech-98-053.pdf:2.46MB

no abstracts in English

Present situation of the review for the incorporation of ICRP1990 recommendation in national regulations

Mizushita, Seiichi

Proc. of 20th JAIF-KAIF Seminar on Nuclear Industry, p.4.1.1 - 4.1.15, 1998/00

no abstracts in English

None

Miyo, Hiroaki; Yoshida, Michihiro; *; Asami, Makoto*; Iso, Takahito*; *; *

PNC TN8440 96-010, 171 Pages, 1996/03

PNC-TN8440-96-010.pdf:9.98MB

None

Dismantling of Japan Power Demonstration Reactor; Decontamination and final radiological survey of buildings

Hatakeyama, Mutsuo; Tachibana, Mitsuo

Doryoku, Enerugi Gijutsu No Saizensen : Doryoku, Enerugi Gijutsu Shimpojiumu Koen Rombunshu 1996, 0, p.360 - 363, 1996/00

no abstracts in English

The Japan power demonstration reactor decommissioning program; Decontamination and radioactivity measurement on building surfaces

Tachibana, Mitsuo; Hatakeyama, Mutsuo; ; Yanagihara, Satoshi

ICEM 95:Proc. of 5th Int. Conf. on Radioactive Waste management and environmental Remediation,Vol. 2, 0, p.1683 - 1686, 1995/00

no abstracts in English

None

PNC TN8440 93-045, 104 Pages, 1993/09

PNC-TN8440-93-045.pdf:2.68MB

None

None

; *; ; ; ; ;

PNC TN8470 93-005, 118 Pages, 1993/01

PNC-TN8470-93-005.pdf:2.81MB

no abstracts in English

None

; *; *; *; ; ;

PNC TN8470 93-003, 115 Pages, 1993/01

PNC-TN8470-93-003.pdf:2.89MB

no abstracts in English