Development of stabilization treatment technology for radioactive aluminum waste
The core structural materials of the Japan Materials Testing Reactor (JMTR) are mostly stainless steel, aluminum (Al) and beryllium (Be). In the decommissioning of JMTR, radioactive miscellaneous solid wastes (waste packages) are produced. The burial criteria require that the drums do not contain...
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| Published in | Journal of Nuclear Fuel Cycle and Environment Vol. 29; no. 1; pp. 2 - 9 |
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| Main Authors | , , , , , , , , , , , , |
| Format | Journal Article |
| Language | English Japanese |
| Published |
Division of Nuclear Fuel Cycle and Environment, Atomic Energy Society of Japan
15.06.2022
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1884-7579 1884-7579 |
| DOI | 10.3327/jnuce.29.1_2 |
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| Abstract | The core structural materials of the Japan Materials Testing Reactor (JMTR) are mostly stainless steel, aluminum (Al) and beryllium (Be). In the decommissioning of JMTR, radioactive miscellaneous solid wastes (waste packages) are produced. The burial criteria require that the drums do not contain any materials that would impair the integrity of the drums, and that the radioactivity of the waste packages does not exceed the amount specified in the criteria. In particular, Al generates hydrogen gas when it reacts with alkaline substances. This can cause voids to form inside the waste package, reducing its strength and increasing the internal pressure, causing the solidifier to overflow. Such a waste package will affect the safe management of the facility. The purpose of this paper was to establish a stabilization treatment technology for Al by applying the Beyer process, and the basic treatment process was established through cold tests. The Al samples were irradiated with neutrons at the Kyoto University Research Reactor (KUR) to investigate the removal characteristics of radionuclides produced by additive and impurity elements in Al by this process. As a result, it was found that Al can be converted to alumina (Al2O3) by this process, and there is a prospect that it can be solidified by cement-based filler as in the usual treatment method for radioactive waste. |
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| AbstractList | The core structural materials of the Japan Materials Testing Reactor (JMTR) are mostly stainless steel, aluminum (Al) and beryllium (Be). In the decommissioning of JMTR, radioactive miscellaneous solid wastes (waste packages) are produced. The burial criteria require that the drums do not contain any materials that would impair the integrity of the drums, and that the radioactivity of the waste packages does not exceed the amount specified in the criteria. In particular, Al generates hydrogen gas when it reacts with alkaline substances. This can cause voids to form inside the waste package, reducing its strength and increasing the internal pressure, causing the solidifier to overflow. Such a waste package will affect the safe management of the facility. The purpose of this paper was to establish a stabilization treatment technology for Al by applying the Beyer process, and the basic treatment process was established through cold tests. The Al samples were irradiated with neutrons at the Kyoto University Research Reactor (KUR) to investigate the removal characteristics of radionuclides produced by additive and impurity elements in Al by this process. As a result, it was found that Al can be converted to alumina (Al2O3) by this process, and there is a prospect that it can be solidified by cement-based filler as in the usual treatment method for radioactive waste. |
| Author | FUJITA, Yoshitaka SANO, Tadafumi J., Zhang YOSHINAGA, Hisao SEKI, Misaki FUJIHARA, Yasuyuki TAKEUCHI, Tomoaki NAGATA, Hiroshi HORI, Junichi IDE, Hiroshi OTSUKA, Kaoru OMORI, Takazumi TSUCHIYA, Kunihiko |
| Author_xml | – sequence: 1 fullname: SANO, Tadafumi organization: Kindai University Atomic Energy Research Institute – sequence: 1 fullname: SEKI, Misaki organization: Japan Atomic Energy Agency – sequence: 1 fullname: OMORI, Takazumi organization: Japan Atomic Energy Agency – sequence: 1 fullname: YOSHINAGA, Hisao organization: Institute for Integrated Radiation and Nuclear Science, Kyoto University – sequence: 1 fullname: FUJIHARA, Yasuyuki organization: Institute for Integrated Radiation and Nuclear Science, Kyoto University – sequence: 1 fullname: NAGATA, Hiroshi organization: Japan Atomic Energy Agency – sequence: 1 fullname: J., Zhang organization: Institute for Integrated Radiation and Nuclear Science, Kyoto University – sequence: 1 fullname: HORI, Junichi organization: Institute for Integrated Radiation and Nuclear Science, Kyoto University – sequence: 1 fullname: TSUCHIYA, Kunihiko organization: Japan Atomic Energy Agency – sequence: 1 fullname: OTSUKA, Kaoru organization: Japan Atomic Energy Agency – sequence: 1 fullname: FUJITA, Yoshitaka organization: Japan Atomic Energy Agency – sequence: 1 fullname: TAKEUCHI, Tomoaki organization: Japan Atomic Energy Agency – sequence: 1 fullname: IDE, Hiroshi organization: Japan Atomic Energy Agency |
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| References | [21] Donald D. Wagman, William H. Evans, et al: The NBS table of chemical thermodynamic properties, Journal of Physical and Chemical Reference Data Vol.11 Suppl. 2, American Ceramic Society and American Institute of Physics for the National Bureau Standards, pp.2-191 (1982). [1] 日本原子力研究開発機構: 国立研究開発法人日本原子力研究開発機構大洗研究所(北地区)JMTR原子炉施設(材料試験炉)に係る廃止措置計画認可申請書. (2019) [13] 長滝重義: アルミナセメントコンクリートの強度について. Vol.6, No.11, pp.16-38 (1968) [8] 日本碍子株式会社: 放射性アルミニウム廃棄物の処理方法. 特許3580597. 2004-10-27. [17] 兒島洋一, 本川幸翁, 大谷良行: アルミニウムの腐食のおはなし その6, Furukawa-Sky Review, 7, pp.38-44, (2011). [12] 杉木六郎: アルミナセメントの構造物への利用について. コンクリートジャーナル, Vol.2, No.1, pp.9-10 (1964) [7] 株式会社日立製作所: 放射性廃棄物の固化方法およびその装置. 特開平8-179097. 1996-7-12. [4] 原子力環境整備センター: 低レベル放射性廃棄物処分用廃棄体作製技術について(各種固体状廃棄物). pp.9-11 (1998). [14] 近藤連一: アルミナセメントの化学. コンクリートジャーナル, Vol.6, No.12, pp.4-8 (1968) [16] 金原幹夫, 望月文男: アルミニウム産業の資源とエネルギー問題. 軽金属, Vol. 30, No. 1, pp.53-61 (1980). [3] 電気事業連合会: 原子力発電所等の廃止措置及び運転に伴い発生する放射性廃棄物の処分について. 原子力規制委員会「第2回廃炉等に伴う放射性廃棄物の規制に関する検討チーム会合」(2015). https://www.nsr.go.jp/data/000096058.pdf (accessed 2020-6-15). [10] 日本碍子株式会社: 放射性アルミニウム廃棄物の処理装置. 特開平10-221493. 1998-8-21. [5] 日本原子力研究所大洗研究所: JMTR. p.11 (2003). [19] Walter H. Gitzen: Alumina as a ceramic material. The American Ceramic Society, p.17, (1970). [20] JIS A 5308: 2019. レディーミクストコンクリート. [2] 関美沙紀, 他: JMTRの廃止措置に向けた難処理廃棄物の廃棄体化のための処理方法の開発―炉内構造物と使用済イオン交換樹脂―. デコミッショニング技報, No.62 (2020). [11] 株式会社日立製作所, 日立エンジニアリング株式会社: 放射性アルミニウム廃棄物の処理方法及びその処理装置. 特開2003-028989. 2003-1-29. [6] 日本原子力研究開発機構: 第2回廃炉等に伴う放射性廃棄物の規制に関する検討チーム会合. 資料2-2 (2015). https://www.nsr.go.jp/data/000096060.pdf (accessed 2020-6-15). [15] JIS H 4000: 2014. アルミニウム及びアルミニウム合金の板及び条. [18] 平野眞一, 無機化学: 丸善出版株式会社, p.91 (2012). [9] 日揮株式会社，日本化薬株式会社: 金属アルミニウム含有放射性固体廃棄物の処理方法. 特開平10-153694. 1998-6-9. 11 12 13 14 15 16 17 18 19 1 2 3 4 5 6 7 8 9 20 10 21 |
| References_xml | – reference: [5] 日本原子力研究所大洗研究所: JMTR. p.11 (2003). – reference: [1] 日本原子力研究開発機構: 国立研究開発法人日本原子力研究開発機構大洗研究所(北地区)JMTR原子炉施設(材料試験炉)に係る廃止措置計画認可申請書. (2019)． – reference: [20] JIS A 5308: 2019. レディーミクストコンクリート. – reference: [12] 杉木六郎: アルミナセメントの構造物への利用について. コンクリートジャーナル, Vol.2, No.1, pp.9-10 (1964)． – reference: [9] 日揮株式会社，日本化薬株式会社: 金属アルミニウム含有放射性固体廃棄物の処理方法. 特開平10-153694. 1998-6-9. – reference: [19] Walter H. Gitzen: Alumina as a ceramic material. The American Ceramic Society, p.17, (1970). – reference: [21] Donald D. Wagman, William H. Evans, et al: The NBS table of chemical thermodynamic properties, Journal of Physical and Chemical Reference Data Vol.11 Suppl. 2, American Ceramic Society and American Institute of Physics for the National Bureau Standards, pp.2-191 (1982). – reference: [11] 株式会社日立製作所, 日立エンジニアリング株式会社: 放射性アルミニウム廃棄物の処理方法及びその処理装置. 特開2003-028989. 2003-1-29. – reference: [4] 原子力環境整備センター: 低レベル放射性廃棄物処分用廃棄体作製技術について(各種固体状廃棄物). pp.9-11 (1998). – reference: [18] 平野眞一, 無機化学: 丸善出版株式会社, p.91 (2012). – reference: [6] 日本原子力研究開発機構: 第2回廃炉等に伴う放射性廃棄物の規制に関する検討チーム会合. 資料2-2 (2015). https://www.nsr.go.jp/data/000096060.pdf (accessed 2020-6-15). – reference: [17] 兒島洋一, 本川幸翁, 大谷良行: アルミニウムの腐食のおはなし その6, Furukawa-Sky Review, 7, pp.38-44, (2011). – reference: [2] 関美沙紀, 他: JMTRの廃止措置に向けた難処理廃棄物の廃棄体化のための処理方法の開発―炉内構造物と使用済イオン交換樹脂―. デコミッショニング技報, No.62 (2020). – reference: [3] 電気事業連合会: 原子力発電所等の廃止措置及び運転に伴い発生する放射性廃棄物の処分について. 原子力規制委員会「第2回廃炉等に伴う放射性廃棄物の規制に関する検討チーム会合」(2015). https://www.nsr.go.jp/data/000096058.pdf (accessed 2020-6-15). – reference: [8] 日本碍子株式会社: 放射性アルミニウム廃棄物の処理方法. 特許3580597. 2004-10-27. – reference: [10] 日本碍子株式会社: 放射性アルミニウム廃棄物の処理装置. 特開平10-221493. 1998-8-21. – reference: [7] 株式会社日立製作所: 放射性廃棄物の固化方法およびその装置. 特開平8-179097. 1996-7-12. – reference: [16] 金原幹夫, 望月文男: アルミニウム産業の資源とエネルギー問題. 軽金属, Vol. 30, No. 1, pp.53-61 (1980). – reference: [14] 近藤連一: アルミナセメントの化学. コンクリートジャーナル, Vol.6, No.12, pp.4-8 (1968)． – reference: [13] 長滝重義: アルミナセメントコンクリートの強度について. Vol.6, No.11, pp.16-38 (1968)． – reference: [15] JIS H 4000: 2014. アルミニウム及びアルミニウム合金の板及び条. – ident: 2 – ident: 17 – ident: 3 – ident: 18 – ident: 5 – ident: 4 – ident: 1 – ident: 12 – ident: 11 – ident: 10 – ident: 19 – ident: 13 – ident: 16 – ident: 14 – ident: 15 – ident: 6 – ident: 9 – ident: 7 – ident: 8 – ident: 21 – ident: 20 |
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| SubjectTerms | aluminum Bayer-process Japan Materials Testing Reactor (JMTR) stabilizing treatment waste packages |
| Title | Development of stabilization treatment technology for radioactive aluminum waste |
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