| Project/Area Number |
21360475
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
OHNUKI Toshihiko 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主席 (20354904)
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| Co-Investigator(Kenkyū-buntansha) |
KOZAI Naofumi 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (80354877)
TANAKA Kazuya 広島大学, サステナブル・ディベロップメント実践研究センター, 講師 (60377992)
UTSUNOMIYA Satoshi 九州大学, 理学研究科, 准教授 (40452792)
SUZUKI Yoshinori 東京工科大学, 応用生物学部, 助教 (20455281)
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| Co-Investigator(Renkei-kenkyūsha) |
NANKAWA Takuya 独立行政法人日本原子力研究開発機構, バックエンド技術部, 研究員 (30370448)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2011: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
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| Keywords | バックエンド / 微生物 / 核種移行 / コロイド / 地下水移行 / アクチノイド / 化学状態 / サイズ排除カラム |
|---|
| Research Abstract |
Nano sized colloids in groundwater have a potential to enhance the migration of actinides. In this study the nano-colloids generation process, its stability, and the interaction with microorganisms or minerals have been studied. We have found that trivalent actinides(REEs are used as alternative) formed nano-colloids on the cell of microorganisms, and they are stable after the cells are lysed. In addition, actinides in the nano-colloids are adsorbed on microbial cell surface and cause legand exchange with elements in the minerals.
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