JP6234033B2 - 焼却飛灰中に含まれる放射性物質の抽出装置及び抽出方法 - Google Patents
焼却飛灰中に含まれる放射性物質の抽出装置及び抽出方法 Download PDFInfo
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- JP6234033B2 JP6234033B2 JP2013026999A JP2013026999A JP6234033B2 JP 6234033 B2 JP6234033 B2 JP 6234033B2 JP 2013026999 A JP2013026999 A JP 2013026999A JP 2013026999 A JP2013026999 A JP 2013026999A JP 6234033 B2 JP6234033 B2 JP 6234033B2
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- fly ash
- water
- extraction
- radioactive
- methanol
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- 238000000605 extraction Methods 0.000 title claims description 86
- 239000010881 fly ash Substances 0.000 title claims description 81
- 239000000941 radioactive substance Substances 0.000 title claims description 56
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 228
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 77
- 239000000243 solution Substances 0.000 claims description 37
- 239000007864 aqueous solution Substances 0.000 claims description 35
- 238000010335 hydrothermal treatment Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 239000012857 radioactive material Substances 0.000 claims description 11
- 239000002956 ash Substances 0.000 claims description 8
- 230000005855 radiation Effects 0.000 description 19
- 230000002285 radioactive effect Effects 0.000 description 16
- 229910052792 caesium Inorganic materials 0.000 description 15
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 15
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 239000002901 radioactive waste Substances 0.000 description 2
- 238000004506 ultrasonic cleaning Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- TVFDJXOCXUVLDH-OUBTZVSYSA-N cesium-134 Chemical compound [134Cs] TVFDJXOCXUVLDH-OUBTZVSYSA-N 0.000 description 1
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 229940106681 chloroacetic acid Drugs 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Description
2 抽出容器
3 加熱手段
11 吸着手段
21,24,25,27 配管(循環手段)
22 貯留タンク(循環手段)
Claims (3)
- 焼却飛灰から放射性物質を水中又はメタノール水溶液中に抽出する抽出手段と、前記抽出手段により抽出された放射性物質を吸着する吸着手段と、前記抽出手段から放射性物質を含んだ水又はメタノール水溶液を受け入れ、この水又はメタノール水溶液を前記吸着手段に送り出すとともに、前記吸着手段から放射性物質が除去された水又はメタノール水溶液を受け入れ、この水又はメタノール水溶液を前記抽出手段に送り出す循環手段とを備え、前記抽出手段は、焼却飛灰と水又はメタノール水溶液の混合物を収容する抽出容器と、この抽出容器に収容された焼却飛灰と水又はメタノール水溶液の混合物を加熱する加熱手段とを備えるとともに、前記抽出手段は、焼却飛灰を100℃以上において水熱処理可能に構成されたことを特徴とする焼却飛灰中に含まれる放射性物質の抽出装置。
- 焼却飛灰を100℃以上において10〜50質量%のメタノールを含むメタノール水溶液を用いて水熱処理することを特徴とする焼却飛灰中に含まれる放射性物質の抽出方法。
- 150℃以上において水熱処理することを特徴とする請求項2記載の焼却飛灰中に含まれる放射性物質の抽出方法。
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JP2013026999A JP6234033B2 (ja) | 2012-06-14 | 2013-02-14 | 焼却飛灰中に含まれる放射性物質の抽出装置及び抽出方法 |
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JP2012134812 | 2012-06-14 | ||
JP2012134812 | 2012-06-14 | ||
JP2013026999A JP6234033B2 (ja) | 2012-06-14 | 2013-02-14 | 焼却飛灰中に含まれる放射性物質の抽出装置及び抽出方法 |
Publications (2)
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JP2014016336A JP2014016336A (ja) | 2014-01-30 |
JP6234033B2 true JP6234033B2 (ja) | 2017-11-22 |
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JP2013026999A Active JP6234033B2 (ja) | 2012-06-14 | 2013-02-14 | 焼却飛灰中に含まれる放射性物質の抽出装置及び抽出方法 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7002070B2 (ja) * | 2017-05-08 | 2022-01-20 | 一陽染工株式会社 | 放射能汚染水の除染処理方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US6084147A (en) * | 1995-03-17 | 2000-07-04 | Studsvik, Inc. | Pyrolytic decomposition of organic wastes |
JP4994509B1 (ja) * | 2011-08-22 | 2012-08-08 | 株式会社Cdmコンサルティング | 放射性物質を含む下水汚泥中の放射性物質を集約する方法 |
JP5032713B1 (ja) * | 2011-10-13 | 2012-09-26 | 株式会社Cdmコンサルティング | 放射性物質を含む土壌の処理方法 |
JP5713245B2 (ja) * | 2012-06-11 | 2015-05-07 | 創イノベーション株式会社 | 放射性物質を含む焼却灰の処理方法 |
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