JP2013068438A5 - - Google Patents
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- JP2013068438A5 JP2013068438A5 JP2011205417A JP2011205417A JP2013068438A5 JP 2013068438 A5 JP2013068438 A5 JP 2013068438A5 JP 2011205417 A JP2011205417 A JP 2011205417A JP 2011205417 A JP2011205417 A JP 2011205417A JP 2013068438 A5 JP2013068438 A5 JP 2013068438A5
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Description
本発明は、アルギン酸金属塩、ポリビニルアルコール、酢酸メチルセルロース、カラギーナン、寒天、および、天然又は合成有機物質のうちの何れかを含有し、固液分離し易い大きさの粒径の多孔質体粒状体を基体粒子とし、粘土鉱物、難溶性フェロシアン化合物、活性炭及びゼオライトからなる群のうちから選ばれる１つ以上の放射性物質除去材が、前記基体粒子の表面及び内部に分散してなることを特徴とする放射性物質除去剤を提案する。
本発明はまた、粘土鉱物、難溶性フェロシアン化合物、活性炭及びゼオライトからなる群のうちから選ばれる１つ以上の放射性物質除去材を、アルギン酸金属塩、ポリビニルアルコール、酢酸メチルセルロース、カラギーナン、寒天、および、天然又は合成有機物質のうちの何れかの水溶液中に加えて分散させてゾルを作製し、該ゾルを、ゲル化剤を含んだ水溶液中に添加してゲルを作製し、このゲルを乾燥させることにより得られる多孔質体造粒物からなることを特徴とする放射性物質除去剤を提案する。
The present invention relates to a porous granule having a particle size that contains a metal alginate , polyvinyl alcohol, methyl cellulose acetate, carrageenan, agar, and any natural or synthetic organic substance and has a size that allows easy solid-liquid separation. was a substrate particles, clay mineral, insoluble ferrocyanide compounds, that one or more radioactive substance-removing material selected from a group consisting of activated carbon and zeolite, is dispersed on the surface and inside of the front Stories substrate particles We propose a special radioactive substance remover.
The present invention also provides one or more radioactive substance removing materials selected from the group consisting of clay minerals, sparingly soluble ferrocyan compounds, activated carbon and zeolite, metal alginate, polyvinyl alcohol, methyl cellulose acetate, carrageenan, agar, and In addition, a sol is prepared by adding and dispersing in an aqueous solution of either a natural or synthetic organic substance, and the sol is added to an aqueous solution containing a gelling agent to prepare a gel . The radioactive substance removal agent characterized by consisting of the porous granulated material obtained by making it cause is proposed .
本発明はまた、粘土鉱物、難溶性フェロシアン化合物、活性炭及びゼオライトからなる群のうちから選ばれる１つ以上の放射性物質除去材を、アルギン酸金属塩、ポリビニルアルコール、酢酸メチルセルロース、カラギーナン、寒天、および、天然又は合成有機物質のうちの何れかの水溶液中に加えて分散させ、ゾルを作製するゾル作製工程と、
前記作製されたゾルを、ゲル化剤を含んだ水溶液中に添加して、前記放射性物質除去材を均一に包含したゲルを作製するゲル作製工程と、
前記作製されたゲルを乾燥させることにより多孔質体造粒物を得る乾燥工程と、
を備えたことを特徴とする放射性物質除去剤の製造方法を提案する。
The present invention also provides one or more radioactive substance removing materials selected from the group consisting of clay minerals, sparingly soluble ferrocyan compounds, activated carbon and zeolite, metal alginate , polyvinyl alcohol, methyl cellulose acetate, carrageenan, agar, and , added and dispersed in either an aqueous solution of natural or synthetic organic material, sol preparation step of preparing a sol,
Adding the prepared sol to an aqueous solution containing a gelling agent to prepare a gel that uniformly includes the radioactive substance removing material ; and
And drying to obtain a porous body granules by Rukoto drying the produced gel,
The manufacturing method of the radioactive substance removal agent characterized by having provided.
（本放射性物質除去剤粒子の粒度調整方法）
本放射性物質除去剤粒子の粒度は、放射性物質の除去効率、通水抵抗などに影響するため、用途に応じて本放射性物質除去剤粒子の粒度を調整できれば有効である。
ところで、本製造方法のように、放射性物質除去材を、アルギン酸金属塩の水溶液中に加えて分散させてアルギン酸金属塩ゾルを作製し、該アルギン酸金属塩ゾルを、ゲル化剤を含んだ水溶液中に滴下してアルギン酸カルシウムゲルを作製し、このアルギン酸カルシウムゲルを乾燥させて水分を離脱させることにより多孔質体造粒物とする製造方法において、アルギン酸金属塩水溶液の濃度、放射性物質除去材の添加量、アルギン酸金属塩ゾルを滴下する際のノズル径や滴下高さなどを変化させて、湿潤状態のアルギン酸カルシウムゲルの粒径を制御することにより、本放射性物質除去剤粒子（乾燥状態）の粒度を制御する。
本製造方法においては、球状の液滴を滴下させるのに適正な条件でこれらのパラメータを設定すると、これらのパラメータを変化させても、湿潤状態のアルギン酸カルシウムゲルの粒径はほぼ一定の４ｍｍ〜５ｍｍとなり、湿潤状態のアルギン酸カルシウムゲルの粒径を任意に制御することが難しいことが判明した。
(Method for adjusting the particle size of the radioactive substance remover particles)
The particle size of the radioactive substance removing agent particles affects the removal efficiency of the radioactive substance, the water passage resistance, etc., so it is effective if the particle size of the radioactive substance removing agent particles can be adjusted according to the application.
By the way, as in the present production method, a radioactive substance removing material is added to and dispersed in an aqueous solution of a metal alginate to prepare a metal alginate sol, and the metal alginate sol is added to an aqueous solution containing a gelling agent. In the manufacturing method to make calcium alginate gel by dripping to the porous body by drying this calcium alginate gel and releasing the moisture, the concentration of the alginate metal salt aqueous solution, the addition of radioactive substance removing material The particle size of this radioactive substance remover particle (dry state) is controlled by changing the nozzle diameter and drop height when dropping the amount of alginic acid metal salt sol and controlling the particle size of the wet calcium alginate gel. that control.
In this production method, when these parameters are set under conditions suitable for dropping spherical droplets, the particle size of the wet calcium alginate gel is substantially constant from 4 mm to 4 mm even when these parameters are changed. It turned out to be 5 mm, and it was found difficult to arbitrarily control the particle size of the wet calcium alginate gel.
Claims (6)
粘土鉱物、難溶性フェロシアン化合物、活性炭及びゼオライトからなる群のうちから選ばれる１つ以上の放射性物質除去材が、前記基体粒子の表面及び内部に分散してなることを特徴とする放射性物質除去剤。 The base particle is a porous granular material containing metal alginate , polyvinyl alcohol, methyl cellulose acetate, carrageenan, agar, and any natural or synthetic organic substance and having a particle size that is easy to separate into solid and liquid. ,
Clay minerals, sparingly soluble ferrocyanide compounds, radioactive material in which one or more radioactive substance-removing material selected from a group consisting of activated carbon and zeolite, to the surface and characterized by being dispersed within the previous SL substrate particles Remover.
所定の充填容器に前記放射性物質除去剤含有の充填層を形成し、
前記充填層に、放射性物質を含む汚染水を通水する通水処理し、
前記放射性物質を除去することを特徴とする放射性物質を含む汚染水の処理方法。 Comprising a radioactive substance removing agent comprising at least one radioactive substance removing material selected from the group consisting of clay minerals, sparingly soluble ferrocyan compounds, activated carbon and zeolite ;
Forming a filling layer containing the radioactive substance removing agent in a predetermined filling container ;
Water treatment for passing contaminated water containing radioactive substances to the packed bed ,
Method of processing contaminated water containing radioactive substances you and removing said radioactive material.
前記作製されたゾルを、ゲル化剤を含んだ水溶液中に添加して、前記放射性物質除去材を均一に包含したゲルを作製するゲル作製工程と、
前記作製されたゲルを乾燥させることにより多孔質体造粒物を得る乾燥工程と、
を備えたことを特徴とする放射性物質除去剤の製造方法。 One or more radioactive material removing materials selected from the group consisting of clay minerals, sparingly soluble ferrocyan compounds, activated carbon, and zeolite are used as metal alginate , polyvinyl alcohol, methyl cellulose acetate, carrageenan, agar, and natural or synthetic organic added and dispersed in either the aqueous solution of the substance, the sol preparation step of preparing a sol,
Adding the prepared sol to an aqueous solution containing a gelling agent to prepare a gel that uniformly includes the radioactive substance removing material ; and
And drying to obtain a porous body granules by Rukoto drying the produced gel,
A method for producing a radioactive substance removing agent, comprising:
前記作製されたゾルを、ゲル化剤を含んだ水溶液中に添加して、前記放射性物質除去材を均一に包含したゲルを作製するゲル作製工程と、
前記作製されたゲルを乾燥させることにより多孔質体造粒物を得る乾燥工程と備えた放射性物質除去剤の製造方法において、
前記ゾル作製工程での水溶液中に添加する放射性物質除去材の添加量を増減することにより、乾燥後の多孔質造粒物の粒径を制御することを特徴とする放射性物質除去剤の粒径制御方法。
One or more radioactive material removing materials selected from the group consisting of clay minerals, sparingly soluble ferrocyan compounds, activated carbon, and zeolite are used as metal alginate , polyvinyl alcohol, methyl cellulose acetate, carrageenan, agar, and natural or synthetic organic added and dispersed in either the aqueous solution of the substance, the sol preparation step of preparing a sol,
Adding the prepared sol to an aqueous solution containing a gelling agent to prepare a gel that uniformly includes the radioactive substance removing material ; and
The method of manufacturing a radioactive substance removing agent comprising a drying step to obtain a porous body granules by Rukoto drying the produced gel,
Wherein by increasing or decreasing the amount of radioactive substance-removing material to be added to the aqueous solution in the sol preparation step, the dried porous granules of you and controlling the particle size radioactive substance removers Particle diameter control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011205417A JP5951950B2 (en) | 2011-09-21 | 2011-09-21 | Method for treating contaminated water containing radioactive substance and method for adjusting particle size of radioactive substance removing agent |
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| JP2011205417A JP5951950B2 (en) | 2011-09-21 | 2011-09-21 | Method for treating contaminated water containing radioactive substance and method for adjusting particle size of radioactive substance removing agent |
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| JP2013068438A JP2013068438A (en) | 2013-04-18 |
| JP2013068438A5 true JP2013068438A5 (en) | 2013-08-15 |
| JP5951950B2 JP5951950B2 (en) | 2016-07-13 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5957290B2 (en) * | 2012-05-14 | 2016-07-27 | 大日精化工業株式会社 | Aqueous dispersion containing ferrocyanide compound, processed body, and cesium removing material |
| JP5373163B2 (en) * | 2012-08-20 | 2013-12-18 | 株式会社化研 | Method for treating seawater contaminated with radioactive Sr using strontium selective adsorbent and aqueous solution containing seawater salt components |
| JP2014077720A (en) * | 2012-10-11 | 2014-05-01 | National Institute Of Advanced Industrial & Technology | Cation adsorbent particle and manufacturing method thereof |
| JP6199643B2 (en) * | 2013-07-24 | 2017-09-20 | 水ｉｎｇ株式会社 | Radioactive contaminated water treatment apparatus and radioactive contaminated water treatment method |
| KR101489162B1 (en) | 2013-08-26 | 2015-02-06 | 인하대학교 산학협력단 | Lysinibacillus fusiformis with activity for treating radioactive substance and composition for treating radioactive substance containing the same |
| JP6082338B2 (en) * | 2013-10-31 | 2017-02-15 | 株式会社荏原製作所 | Decontamination device and decontamination method for contaminated water area |
| KR101561642B1 (en) | 2013-11-14 | 2015-10-20 | 가톨릭관동대학교산학협력단 | Absobent Beads for Radioactive Sr(II) Using the Sericite and Method of Producing the Same |
| JP2015114267A (en) * | 2013-12-13 | 2015-06-22 | 学校法人近畿大学 | Radioactive substance adsorbing material |
| KR101579795B1 (en) * | 2014-01-20 | 2015-12-24 | 가톨릭관동대학교산학협력단 | Method of Removing Cesium from Wastewater by the Solidified Sericite |
| JP6320781B2 (en) * | 2014-02-06 | 2018-05-09 | 国立研究開発法人日本原子力研究開発機構 | Ferrocyanide particle-polysaccharide complex |
| WO2017200358A1 (en) * | 2016-05-19 | 2017-11-23 | 인하대학교 산학협력단 | Composition for adsorbing radioactive cesium and preparation method therefor |
| KR101886646B1 (en) * | 2016-05-19 | 2018-08-09 | 인하대학교 산학협력단 | Composition for adsorption of radioactive cesium and method for preparing the same |
| CN113823796B (en) * | 2021-09-09 | 2022-12-27 | 电子科技大学 | Water-based binder based on alginic acid-Prussian blue and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0244922A1 (en) * | 1986-05-08 | 1987-11-11 | Westinghouse Electric Corporation | Apparatus and method for removing strontium ions from aqueous solutions |
| JPH0767948A (en) * | 1993-08-31 | 1995-03-14 | Matsushita Electric Ind Co Ltd | Activated carbon granule, deodorant and manufacture of deodorant |
| JP2004045371A (en) * | 2002-05-20 | 2004-02-12 | Ebara Corp | Processing method and device for liquid including radionuclide |
| JP2006175373A (en) * | 2004-12-22 | 2006-07-06 | Chube Univ | Adsorbent for liquid phase, and treatment method of basic dye aqueous solution |
| JP4585393B2 (en) * | 2005-07-05 | 2010-11-24 | 株式会社東芝 | Waste liquid treatment method and apparatus |
| JP2007237097A (en) * | 2006-03-09 | 2007-09-20 | Osaka Prefecture | Magnetic adsorbent and waste water treating technique using it |
| JP2008232773A (en) * | 2007-03-20 | 2008-10-02 | Japan Organo Co Ltd | Treater for water containing radioactive material in nuclear power plant |
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