Case study for one-piece removal method of reactor vessel of nuclear ship "Mutsu"

Nagane, Satoru; Kitahara, Katsumi; Yoshikawa, Seiji; Miyasaka, Yasuhiko*; Fukumura, Nobuo*; Nishizawa, Ichio*

Dekomisshoningu Giho, (42), p.2 - 10, 2010/09

http://www.randec.or.jp/publish/documents/gihou/Decommissioning%20gihou_42.pdf

A reactor installed at the center part of the nuclear ship "Mutsu" has been stored safely and exhibited in a reactor room building since 1996. The reactor vessel and its internals are key components because of main radioactive wastes for the reasonable decommissioning plan in the future. This report describes the one-piece removal method as the one package of the reactor vessel with its internals intact with a shipping container or additional shields. The reactor vessel package (Max. 100 ton) will be classified acceptable for burial at the low level radioactive waste (LLW), which will be buried at a LLW pit facility under waste disposal regulations. And also, the package will be classified as an IP-2-equivalent package according to the requirement for Shipments and Packagings.

Outline of TRU waste management facility at NUCEF

; *; Nishizawa, Ichio; Haruyama, Mitsuo; Takase, Misao*;

JAERI-Tech 97-069, 32 Pages, 1998/01

JAERI-Tech-97-069.pdf:1.87MB

no abstracts in English

Application of insoluble tannin adsorbent to alpha aqueous waste treatment in NUCEF

; Usuda, Shigekazu; Mineo, Hideaki; Nishizawa, Ichio; Takeshita, Isao

Proc. of Int. Conf. on Future Nuclear Systems (Global'97), 1, p.835 - 839, 1997/00

no abstracts in English

An Approach for the reasonable TRU waste management in NUCEF

Mineo, Hideaki; Dojiri, Shigeru; Takeshita, Isao; Tsujino, Takeshi; ; Nishizawa, Ichio; Sugikawa, Susumu

Global 1995, Int. Conf. on Evaluation of Emerging Nuclear Fuel Cycle Systems,Vol. 1, 0, p.708 - 715, 1995/00

no abstracts in English