JP2015081840A - Method for treating contaminated water including radioactive matter such as tritium - Google Patents
Method for treating contaminated water including radioactive matter such as tritium Download PDFInfo
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- JP2015081840A JP2015081840A JP2013219862A JP2013219862A JP2015081840A JP 2015081840 A JP2015081840 A JP 2015081840A JP 2013219862 A JP2013219862 A JP 2013219862A JP 2013219862 A JP2013219862 A JP 2013219862A JP 2015081840 A JP2015081840 A JP 2015081840A
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- tritium
- contaminated water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 title claims abstract description 17
- 229910052722 tritium Inorganic materials 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000002285 radioactive effect Effects 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002101 nanobubble Substances 0.000 claims abstract description 5
- 239000000941 radioactive substance Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 238000011282 treatment Methods 0.000 abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000701 coagulant Substances 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 229910021536 Zeolite Inorganic materials 0.000 abstract description 2
- 239000000440 bentonite Substances 0.000 abstract description 2
- 229910000278 bentonite Inorganic materials 0.000 abstract description 2
- -1 bentonite rare earth Chemical class 0.000 abstract description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010419 fine particle Substances 0.000 abstract description 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 2
- 239000010457 zeolite Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract 2
- 238000002156 mixing Methods 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000006448 coagulant property Effects 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 239000004821 Contact adhesive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
Description
本発明は、トリチウム等の放射性物質を含有する汚染水の処理方法に関する。 The present invention relates to a method for treating contaminated water containing a radioactive substance such as tritium.
我が国において、地震・津波による原子力発電所の崩壊により、放射線物質を含有した汚染された水が大量に発生し、特に処理はされているが残存したトリチウムを含有した処理水がタンクに貯蔵されているのが現状である。 In Japan, due to the collapse of nuclear power plants due to earthquakes and tsunamis, a large amount of contaminated water containing radioactive substances is generated, and treated water containing tritium that has been treated but remains, is stored in tanks. The current situation is.
そこで発明者は、これら汚染された水の処理方法について種々研究を重ねて本発明を完成させるに至った。 Therefore, the inventor has conducted various studies on the treatment method of these contaminated waters and has completed the present invention.
すなわち、本発明は、トリチウム等の放射性物質を含有する汚染水中に初期段階で微細粒子（ベントナイト希土類・活性炭・ゼオライト等）と凝集性能を持つ鉄系調合型凝集剤とを高密度凝集して汚染水に注入し、長時間攪拌を行う。この方法は回分処理（バッチ方式）または半回分処理による接触攪拌時間を初期処理に設ける事が事後の処理ステムの負荷軽減や大量処理を可能とする。特に重水類のなかでトリチウムは残存しやすいので、気液溶解装置で高濃度酸素のナノバブルを併用または、後段処理水に注入することによりトリチウムを微細混入拡散する一連の放射線汚染水の処理方法である。 That is, the present invention contaminates the contaminated water containing radioactive substances such as tritium by agglomerating the fine particles (bentonite rare earth, activated carbon, zeolite, etc.) and the iron-based coagulant with agglomeration performance at an early stage. Pour into water and stir for a long time. In this method, it is possible to reduce the load on the subsequent processing system and to perform mass processing by providing the initial processing with contact stirring time by batch processing (batch method) or semi-batch processing. In particular, tritium tends to remain among heavy waters. Therefore, a series of treatment methods for radiation-contaminated water in which tritium is finely mixed and diffused by using nanobubbles of high-concentration oxygen in a gas-liquid dissolution apparatus or by injecting them into post-treatment water. is there.
更に放射線汚染水の安全性を図る対策として、例えば港湾内に放流する場合には、接触付着型の透水性フェンスを海域に多重展張し、放流水に鉄系調合型凝集剤と固体粒子触媒を併用して持続的にフェンスの吸着効果を付加することができ、貝類などの生物浄化が期待できる。 In addition, as a measure to ensure the safety of radiation-contaminated water, for example, when discharging into a harbor, multiple contact-adhesive permeable fences are stretched in the sea area, and iron-based coagulant and solid particle catalyst are added to the discharged water. It can be used together to continuously add a fence adsorption effect, and it can be expected to purify organisms such as shellfish.
本発明によれば、高濃度酸素水／ナノバブルを随所に用いて、現在タンクで貯留されている処理水中に含有されているトリチウムを低減して、外部に放流することができ従来のタンク貯留が削減又は不要と成るので、貯留タンクを多数使用して高濃度酸素を注入してトリチウムの処理を行うことができる。
さらに初期段階で汚染水を大量に回分処理をおこなう事ができる。
According to the present invention, tritium contained in the treated water currently stored in the tank can be reduced using high-concentration oxygen water / nano bubbles everywhere, and can be discharged to the outside. Since it is reduced or unnecessary, it is possible to process tritium by using a large number of storage tanks and injecting high concentration oxygen.
Furthermore, a large amount of contaminated water can be batch-treated at the initial stage.
本発明は、トリチウム等の汚染水の処理施設又は既存のシステムの初期・中段・後段等の随所に高濃度酸素水を使用し、放射線物質のレベル低減させることによって除染する手段である。
本装置は、陸上に設置する「酸素供給設備」と水中に設置する「酸素供給装置」から構成されている。大気中の酸素を集めて高濃度化した後に、水中の気液溶解装置に供給し、水中の水圧と水温に応じて効率良く、放射線汚染水並びにトリチウム含有水に高酸素水を水中に溶解し、成層構造を保ちつつ水平方向へ広く拡散することができる。（深層酸素供給装置を用いたダム・湖沼深層水の酸素供給技術−水環境学会誌引用）
放射線類の減衰期は長期間を要するトリチウムは１２年と謂われている。
各種の処理報告がなされているが、高酸素を水中に吹き込むとナノバブルと言われる気液溶解水が周辺水に拡散し、物理・電気・化学的などの酸化還元作用による多機能効果が得られる。
これら一連の処理は、放射線汚染水の処理が確立されていない現在、世界に先駆けた先進技術として、我が国が発信できる。
The present invention is a means for decontamination by using high-concentration oxygen water at various locations such as tritium and other contaminated water treatment facilities or in the initial, middle, and subsequent stages of existing systems and reducing the level of radioactive substances.
This device is composed of an “oxygen supply facility” installed on land and an “oxygen supply device” installed in water. After collecting and increasing the concentration of oxygen in the atmosphere, it is supplied to a gas-liquid dissolution device in water, and high-oxygen water is dissolved in radiation-contaminated water and tritium-containing water efficiently according to the water pressure and temperature in the water. , It can diffuse widely in the horizontal direction while maintaining a stratified structure. (Oxygen supply technology for deep water in dams and lakes using deep oxygen supply equipment-cited from the Journal of Japan Society on Water Environment)
It is said that tritium, which requires a long decay period of radiation, is 12 years.
Various treatment reports have been made, but when high oxygen is blown into the water, gas-liquid dissolved water called nanobubbles diffuses into the surrounding water, and a multi-functional effect due to redox action such as physical, electrical, and chemical is obtained. .
These series of treatments can be transmitted by Japan as the world's first advanced technology at present when treatment of radiation-contaminated water has not been established.
Claims (1)
By discharging high concentration oxygen water / nanobubbles into contaminated water containing radioactive substances such as tritium, water can be discharged to the outside by reducing tritium contained in the contaminated water stored in the tank. This is a method for treating contaminated water containing tritium or the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013219862A JP2015081840A (en) | 2013-10-23 | 2013-10-23 | Method for treating contaminated water including radioactive matter such as tritium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013219862A JP2015081840A (en) | 2013-10-23 | 2013-10-23 | Method for treating contaminated water including radioactive matter such as tritium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2015081840A true JP2015081840A (en) | 2015-04-27 |
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| JP2013219862A Pending JP2015081840A (en) | 2013-10-23 | 2013-10-23 | Method for treating contaminated water including radioactive matter such as tritium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016002938A1 (en) * | 2014-07-03 | 2016-01-07 | 株式会社ピーシーエス | Method for substituting tritium in tritium-containing water, and tritium elimination method |
| RU2680507C1 (en) * | 2018-03-14 | 2019-02-21 | Федеральное государственное бюджетное учреждение науки Институт химии твердого тела Уральского отделения Российской академии наук | Contaminated with tritium waters purification method |
| CN113450937A (en) * | 2021-06-21 | 2021-09-28 | 浙江大学 | Treatment method for radioactive waste resin fluidization cracking |
| EP3951800A4 (en) * | 2019-09-30 | 2022-04-27 | Kabushikikaisha, Gabriel | Method for decontaminating tritium-radiation-polluted water |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637866A (en) * | 1983-03-18 | 1987-01-20 | Japan Atomic Energy Research Institute | Recovery method of tritium from tritiated water |
| JP2011064463A (en) * | 2009-09-15 | 2011-03-31 | Chugoku Electric Power Co Inc:The | Washing device |
| JP2012185013A (en) * | 2011-03-04 | 2012-09-27 | Hitachi-Ge Nuclear Energy Ltd | Processing method of radioactive waste liquid and processing apparatus therefor |
| JP2012247406A (en) * | 2011-05-28 | 2012-12-13 | Tsuda:Kk | Method and device for cleaning agricultural product contaminated with radioactivity |
| WO2013065744A1 (en) * | 2011-10-31 | 2013-05-10 | 株式会社カネカ | Decontamination agent and decontamination method using same |
| JP2013101098A (en) * | 2011-10-21 | 2013-05-23 | Daiki Ataka Engineering Co Ltd | Decontamination method for removing radioactive cesium from incinerated ash or fly ash containing radioactive cesium |
-
2013
- 2013-10-23 JP JP2013219862A patent/JP2015081840A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4637866A (en) * | 1983-03-18 | 1987-01-20 | Japan Atomic Energy Research Institute | Recovery method of tritium from tritiated water |
| JP2011064463A (en) * | 2009-09-15 | 2011-03-31 | Chugoku Electric Power Co Inc:The | Washing device |
| JP2012185013A (en) * | 2011-03-04 | 2012-09-27 | Hitachi-Ge Nuclear Energy Ltd | Processing method of radioactive waste liquid and processing apparatus therefor |
| JP2012247406A (en) * | 2011-05-28 | 2012-12-13 | Tsuda:Kk | Method and device for cleaning agricultural product contaminated with radioactivity |
| JP2013101098A (en) * | 2011-10-21 | 2013-05-23 | Daiki Ataka Engineering Co Ltd | Decontamination method for removing radioactive cesium from incinerated ash or fly ash containing radioactive cesium |
| WO2013065744A1 (en) * | 2011-10-31 | 2013-05-10 | 株式会社カネカ | Decontamination agent and decontamination method using same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016002938A1 (en) * | 2014-07-03 | 2016-01-07 | 株式会社ピーシーエス | Method for substituting tritium in tritium-containing water, and tritium elimination method |
| JP2016013535A (en) * | 2014-07-03 | 2016-01-28 | 株式会社ピーシーエス | Replacement method for tritium in tritium-containing water and tritium removal method |
| US9849425B2 (en) | 2014-07-03 | 2017-12-26 | Pcs Co., Ltd. | Method for substituting tritium in tritium-containing water, and tritium elimination method |
| EA033976B1 (en) * | 2014-07-03 | 2019-12-16 | ПиСиЭс КО., ЛТД. | Method for substituting tritium in tritium-containing water, and tritium elimination method |
| RU2680507C1 (en) * | 2018-03-14 | 2019-02-21 | Федеральное государственное бюджетное учреждение науки Институт химии твердого тела Уральского отделения Российской академии наук | Contaminated with tritium waters purification method |
| EP3951800A4 (en) * | 2019-09-30 | 2022-04-27 | Kabushikikaisha, Gabriel | Method for decontaminating tritium-radiation-polluted water |
| CN113450937A (en) * | 2021-06-21 | 2021-09-28 | 浙江大学 | Treatment method for radioactive waste resin fluidization cracking |
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