JP2013217842A - 液中放射性物質処理方法 - Google Patents
液中放射性物質処理方法 Download PDFInfo
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Abstract
【解決手段】放射性物質を含有する液体にラン藻類由来成分を添加する手順と、該混合液に金属塩を添加する手順とを少なくとも含む液中放射性物質処理方法を提供する。まず、放射性物質を含有する液体にラン藻類由来成分を添加し、攪拌・混合する。これにより、主にラン藻類由来成分中の多糖類ポリマーが液中放射性物質を吸着する。次に、この混合液に金属塩を添加し、攪拌・混合する。これにより、プラスイオンを有する金属塩と、マイナスイオンを有するラン藻類由来成分中の多糖類ポリマーが結合し、フロック化し、沈降する。この沈降物を回収することにより、液中放射性物質の濃縮・回収が可能であり、また、例えば、この沈降物を乾燥処理することにより、放射性廃液の大幅な減容化が可能である。
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Claims (6)
- 放射性物質を含有する液体にラン藻類由来成分を添加する手順と、該混合液に金属塩を添加する手順とを少なくとも含む液中放射性物質処理方法。
- 前記ラン藻類由来成分が、ラン藻類からの抽出成分を金属イオン除去処理したものである請求項1記載の液中放射性物質処理方法。
- 前記ラン藻類由来成分中に、重量平均分子量200万〜2,000万の多糖類を有効成分として含有する請求項1又は請求項2記載の液中放射性物質処理方法。
- 前記多糖類が5〜20類の構成単糖を含む請求項3記載の液中放射性物質処理方法。
- 前記多糖類が、構成単糖としてウロン酸類を含有する請求項4記載の液中放射性物質処理方法。
- 前記多糖類が、硫酸基を含有する構成単糖を1〜20%有する請求項3〜5のいずれか一項記載の液中放射性物質処理方法。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015085219A (ja) * | 2013-10-28 | 2015-05-07 | 鹿島建設株式会社 | 凝集処理方法 |
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CN105081053B (zh) * | 2015-07-16 | 2017-08-15 | 昆山达亚汽车零部件有限公司 | 汽车零件用冷冲压修边模具 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5455299A (en) * | 1977-09-27 | 1979-05-02 | Us Energy | Method of removing plutonium from aqueous solution containing plutomium |
JPH0868893A (ja) * | 1994-08-29 | 1996-03-12 | Sumitomo Metal Mining Co Ltd | 種々の放射性物質及び重金属元素を含む廃液の処理方法 |
JPH10216737A (ja) * | 1997-02-04 | 1998-08-18 | Hiroshi Takatomi | フロックの生成方法 |
WO2008062574A1 (fr) * | 2006-11-22 | 2008-05-29 | Tatsuo Kaneko | Dérivé de sucre et ses utilisations |
JP2009221136A (ja) * | 2008-03-14 | 2009-10-01 | Tatsuo Kaneko | 糖誘導体製剤 |
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- 2012-04-11 JP JP2012090193A patent/JP6083726B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5455299A (en) * | 1977-09-27 | 1979-05-02 | Us Energy | Method of removing plutonium from aqueous solution containing plutomium |
JPH0868893A (ja) * | 1994-08-29 | 1996-03-12 | Sumitomo Metal Mining Co Ltd | 種々の放射性物質及び重金属元素を含む廃液の処理方法 |
JPH10216737A (ja) * | 1997-02-04 | 1998-08-18 | Hiroshi Takatomi | フロックの生成方法 |
WO2008062574A1 (fr) * | 2006-11-22 | 2008-05-29 | Tatsuo Kaneko | Dérivé de sucre et ses utilisations |
JP2009221136A (ja) * | 2008-03-14 | 2009-10-01 | Tatsuo Kaneko | 糖誘導体製剤 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015085219A (ja) * | 2013-10-28 | 2015-05-07 | 鹿島建設株式会社 | 凝集処理方法 |
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