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高減容処理施設の溶融設備における安全対策について; 溶融設備に係る意見交換会資料集

Safety measures in the melting facilities of The Advanced Volume Reduction Facilities; Document collection of discussion meetings related to melting facilities

池谷 正太郎; 横堀 智彦; 石川 譲二; 安原 利幸*; 小澤 俊之*; 高泉 宏英*; 門馬 武*; 黒澤 伸悟*; 伊勢田 浩克; 岸本 克己; 明道 栄人; 小澤 一茂

Iketani, Shotaro; Yokobori, Tomohiko; Ishikawa, Joji; Yasuhara, Toshiyuki*; Kozawa, Toshiyuki*; Takaizumi, Hirohide*; Monma, Takeshi*; Kurosawa, Shingo*; Iseda, Hirokatsu; Kishimoto, Katsumi; Myodo, Masato; Kozawa, Kazushige

日本原子力研究開発機構では、原子力科学研究所の雑固体廃棄物を廃棄体化する手段として、放射能評価及び減容・安定化の観点から有効な溶融処理を採用している。金属溶融設備及び焼却・溶融設備(以下「溶融設備」という。)については、過去の火災トラブルでの再発防止対策を含め多くの安全対策を施しており、この妥当性等について機構外の有識者を交えた意見交換を行うため、「溶融設備に係る意見交換会」を開催した。本稿は、意見交換会において発表した"高減容処理施設の概要"、"溶融設備の安全対策"、"溶融設備の運転管理"、"過去の国内・国外事例と当該施設との比較"及び"各委員からの他施設における事故事例及び安全対策の紹介"について、資料集としてまとめたものである。

Japan Atomic Energy Agency (JAEA) adopts melting process for the waste processing and packaging method of radioactive miscellaneous solid waste in NSRI because melting process is effective in radioactivity evaluation, volume reduction, and stabilization treatment. Metal melting processing facilities, Incinerator, and Nonmetal melting processing facilities (hereinafter referred to as melting process facilities) have taken lots of safety measures, including measures for preventing the recurrence of the fire accidents. To exchange opinions and discuss the validity of these measures and so on with internal personnel and external experts, "Discussions on Melting Process Facilities" was held. As a document collection, this paper summarizes presentation materials of discussion meetings. Presentation materials describe "Outline of AVRF", "Safety measures in the melting facilities in WVRF", "Operation management of the melting facilities in WVRF", "Comparison of the past accident cases between facilities in and outside Japan and WVRF", and "Introduction of past accident cases and safety measures in other facilities from each committee".

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