Development of dismantling technology for nuclear fuel facility; Discussion of dismantling method for Old Waste Treatment Facility for JOYO

Morita, Kenji; Morimoto, Makoto; Hisada, Masaki; Fukui, Yasutaka

JAEA-Technology 2015-038, 30 Pages, 2016/02

JAEA-Technology-2015-038.pdf:14.65MB

The Old Waste Treatment Facility for JOYO (Old JWTF) has been operated to treat radioactive liquid waste from the experimental fast reactor JOYO and post irradiation examination facilities. Operation of Old JWTF stopped in 1995, and dismantling & decontamination method has discussed. As a response to discussion results of remote and dismantling method in high dose environment on 2013, its concept examination was discussed on 2014. Results are follows. As a cutting tool for Old JWTF equipment, wire saw is selected from cutting ability (speed and thickness of objects). Discussed the component technology of wire saw remote operation system (handling, monitoring, collection method of secondary waste, else).

Measurement, decontamination and dismantlement technology that applies to decommissioning

Hirokawa, Katsunori; Hisada, Masaki; Fukui, Yasutaka; Inoue, Setsunari

Dekomisshoningu Giho, (44), p.33 - 42, 2011/09

http://www.randec.or.jp/publish/documents/gihou/Decommissioning%20gihou_44.pdf

In Japan Atomic Energy Agency, facilities where the mission was finished and superannuation facilities are decommissioned systematically for rationalization and efficiency improvement of business. It is necessary to execute safe and economically by making good use of the technology according to the kind of facilities and the feature of the dismantlement object. In this report, it reports on the radiation measurement, decontamination and dismantling technology that develops in the Waste Treatment Technology Section O-ARAI Research and Development Center JAEA.