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Journal Articles

Project management efforts in the decommissioning project of Tokai Reprocessing Plant

Taguchi, Shigeo; Taguchi, Katsuya; Makino, Risa; Yamanaka, Atsushi; Suzuki, Kazuyuki; Takano, Masato; Koshino, Katsuhiko; Ishida, Michihiko; Nakano, Takafumi; Yamaguchi, Toshiya

Nihon Hozen Gakkai Dai-17-Kai Gakujutsu Koenkai Yoshishu, p.499 - 502, 2021/07

In 2018, Tokai Reprocessing Plan (TRP) shifted to the decommissioning stage. In order to proceed with steady decommissioning work, TRP effort to enhance project management function. This paper describes the establishment and role of the Decommissioning Project Management Office, effectiveness of applying the project management tool and its utilization concept, and the method of materialize the equipment dismantling plan.

Journal Articles

Development of new treatment process for low level liquid waste at Tokai reprocessing plant

Saito, Yasuo; Takano, Masato; Tanaka, Kenji; Kobayashi, Kentaro; Otani, Yoshikuni

Proceedings of International Symposium on Radiation Safety Management 2007 (ISRSM 2007), p.275 - 280, 2007/11

The Low-radioactive Waste Treatment Facility (LWTF), which aims to provide the safe, efficient and economic treatment and disposal of Low-level Liquid Waste (LLW) generated from LWR spent fuel reprocessing, was constructed at the Tokai Reprocessing Plant (TRP), and a cold test is now being carried out. New treatment processes such as a removal process for radio-nuclides and the ROBE (BORSAURE EINENGUNG ANLAGE) solidification process are being implemented in the LWTF. In order to treat the large amount of sodium nitrate contained in the concentrated LLW with higher safety and economy, R&D work on nitrate-ion decomposition technology using a catalytic reduction method and on the solidification process by cementation is being undertaken. The results of this R&D will be adopted in the LWTF in the near future. This report describes an outline of liquid waste treatment in the LWTF and new treatment technologies for LLW to achieve safe, efficient and economic treatment and disposal.

Oral presentation

Experiment of nitrate liquid waste decomposition

Suzuki, Yasuhiro*; Mihara, Shigeru*; Kojima, Shuzo*; Kato, Takashi*; Takano, Masato; Wakayama, Yoshinori; Iko, Shuji

no journal, , 

no abstracts in English

Oral presentation

Development on nitric ion decomposition technique at Tokai Reprocessing Plant

Takano, Masato; Horiguchi, Kenichi; Tanaka, Kenji; Kobayashi, Kentaro

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive effluent in Tokai Reprocessing Plant, 2; Development of nitrate liquid waste decomposition

Takano, Masato; Tanaka, Kenji; Kobayashi, Kentaro; Tsukamoto, Ryosuke*

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive effluent in Tokai Reprocessing Plant, 2; Nitrate liquid waste decomposition

Takano, Masato; Kojima, Hiroshi; Tanaka, Kenji; Kobayashi, Kentaro; Tsukamoto, Ryosuke*

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive effluent in Tokai Reprocessing Plant, 5; Applicability of nitrate liquid waste decomposition

Takano, Masato; Kojima, Hiroshi; Tanaka, Kenji; Kobayashi, Kentaro; Tsukamoto, Ryosuke*

no journal, , 

no abstracts in English

Oral presentation

Degradation of nitrate ion by reduction using precious metal catalyst, 5; Effects of catalyst metal composition on catalyst lifetime

Kadowaki, Haruhiko; Kato, Atsushi; Mamiya, Keiji; Takano, Masato; Yamashita, Toshiyuki; Meguro, Yoshihiro; Takahashi, Kuniaki

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive effluent in Tokai Reprocessing Plant, 8; Applicability of the catalyst for practical use in sodium nitrate decomposition

Takano, Masato; Sugaya, Atsushi; Tanaka, Kenji; Akutsu, Shigeru; Egami, Hikari*

no journal, , 

no abstracts in English

Oral presentation

Nitrogen oxide closed system in the future reprocessing process, 6; Applicability to advanced aqueous reprocessing process

Takaoku, Yoshinobu*; Hattori, Isao*; Watanabe, Tetsuya*; Okaniwa, Takaaki*; Araya, Sadao*; Homma, Shunji*; Takano, Masato; Akai, Yoshie*; Suzuki, Yasuhiro*

no journal, , 

no abstracts in English

Oral presentation

Degradation of nitrate ion by reduction using precious metal catalyst, 6; Elucidation of cause of decreased activity of catalyst by continuous use

Kadowaki, Haruhiko; Kato, Atsushi; Mamiya, Keiji; Takano, Masato; Yamashita, Toshiyuki; Meguro, Yoshihiro; Takahashi, Kuniaki

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive nitrate liquid waste in Tokai Reprocessing Plant

Takano, Masato; Horiguchi, Kenichi

no journal, , 

no abstracts in English

Oral presentation

Degradation of nitrate ion by reduction using precious metal catalyst, 8; Development of regeneration technique for decayed catalyst

Kadowaki, Haruhiko; Mamiya, Keiji*; Takano, Masato; Tashiro, Kiyoshi; Meguro, Yoshihiro

no journal, , 

no abstracts in English

Oral presentation

Determination of trace elements in low-level radioactive liquid waste of reprocessing plant using chelating disk separation/ICP-AES

Okano, Masanori; Goto, Yuichi; Jitsukata, Shu*; Nemoto, Hirokazu*; Takano, Masato; Komoto, Norio; Kuno, Takehiko; Yamada, Keiji

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive effluent in Tokai Reprocessing Plant, 14; Study of Cs/Sr adsorption process by two linked column experiment

Takano, Masato; Ito, Yoshiyuki; Suzuki, Tatsuya*; Takimoto, Mayumi*; Matsukura, Minoru*; Mimura, Hitoshi*; Mori, Koichi*; Iwasaki, Mamoru*

no journal, , 

no abstracts in English

Oral presentation

Intercomparison of $$gamma$$ ray analysis softwares using reference spectra

Aoyama, Michio*; Akiyama, Masakazu*; Asai, Masato; Abe, Takaaki*; Sato, Yasushi*; Takano, Naoto*; Takamiya, Koichi*; Hamajima, Yasunori*; Muto, Giichi*; Yamada, Takashi*; et al.

no journal, , 

Performance of $$gamma$$-ray spectrum analysis softwares is significantly important because it directly affects the results of nuclide identification and radioactivity measurement. The Expert Committee on Next-generation Gamma-ray Spectrometry, Science and Engineering Committee, Japan Radioisotope Association, performed intercomparison of $$gamma$$-ray analysis software by analyzing the same reference spectra with several softwares used in Japan, to know and to improve their performance. It was found that the number of peaks detected by the peak search analysis and deduced peak areas were different among each of the softwares. The reasons why such differences occur are investigated in detail.

Oral presentation

Development of treatment for low radioactive waste in Tokai Reprocessing Plant, 21; Practical study on Cs and Sr adsorption process in LWTF

Ito, Yoshiyuki; Matsushima, Ryotatsu; Takano, Masato; Suzuki, Tatsuya*; Miyabe, Shinsuke*; Sakuma, Takashi*

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive waste in Tokai Reprocessing Plant, 25; Estimation of causes of stress corrosion cracking in incinerators

Koshino, Katsuhiko; Takano, Masato; Sato, Fuminori; Saito, Yasuo

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive waste in Tokai Reprocessing Plant, 22; Hydrogen generation evaluation of cement solidified by gamma irradiation

Kataoka, Shoji; Takano, Masato; Sato, Fuminori; Saito, Yasuo

no journal, , 

no abstracts in English

Oral presentation

Development of treatment for low radioactive waste in Tokai Reprocessing Plant, 23; Study on the effect of impurities present in waste liquid on cement solidification

Matsushima, Ryotatsu; Takano, Masato; Atarashi, Daiki*; Saito, Yasuo

no journal, , 

no abstracts in English

23 (Records 1-20 displayed on this page)