METHOD FOR REDUCING RADIOACTIVE SUBSTANCE FROM RADIOACTIVELY CONTAMINATED SUBSTANCE
The present invention provides a method for reducing a radioactive substance, which enables the removal or reduction of a radioactive substance from a plant such as a vegetable, water or a land such as a farm land which has been contaminated with radiation. A radioactively contaminated substance is...
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Format | Patent |
Language | English French Japanese |
Published |
26.10.2012
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Abstract | The present invention provides a method for reducing a radioactive substance, which enables the removal or reduction of a radioactive substance from a plant such as a vegetable, water or a land such as a farm land which has been contaminated with radiation. A radioactively contaminated substance is immersed in special water which is firstly passed through an ion exchange resin and is then passed through one of tourmaline and an igneous rock containing silicon dioxide in an amount of 65-76% and subsequently through the other. In this manner, the radioactivity concentrations of iodine-131 and three kinds of cesium (cesium-134, cesium-136 and cesium-137) in the radioactively contaminated substance can be reduced.
L'invention concerne un procédé pour diminuer une substance radioactive, qui permet l'élimination ou la diminution d'une substance radioactive d'une plante telle qu'un légume, d'une eau ou d'une terre telle qu'une terre agricole qui a été contaminée avec une radiation. Une substance contaminée par la radioactivité est immergée dans une eau particulière qui est d'abord passée à travers une résine échangeuse d'ions puis est passée à travers une parmi une tourmaline et une roche éruptive contenant du dioxyde de silicium dans une quantité de 65 à 76 % et ensuite à travers l'autre. De cette manière, les concentrations de radioactivité de l'iode-131 et de trois sortes de césium (césium-134, césium-136 et césium-137) dans la substance contaminée par la radioactivité peuvent être diminuées. |
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AbstractList | The present invention provides a method for reducing a radioactive substance, which enables the removal or reduction of a radioactive substance from a plant such as a vegetable, water or a land such as a farm land which has been contaminated with radiation. A radioactively contaminated substance is immersed in special water which is firstly passed through an ion exchange resin and is then passed through one of tourmaline and an igneous rock containing silicon dioxide in an amount of 65-76% and subsequently through the other. In this manner, the radioactivity concentrations of iodine-131 and three kinds of cesium (cesium-134, cesium-136 and cesium-137) in the radioactively contaminated substance can be reduced.
L'invention concerne un procédé pour diminuer une substance radioactive, qui permet l'élimination ou la diminution d'une substance radioactive d'une plante telle qu'un légume, d'une eau ou d'une terre telle qu'une terre agricole qui a été contaminée avec une radiation. Une substance contaminée par la radioactivité est immergée dans une eau particulière qui est d'abord passée à travers une résine échangeuse d'ions puis est passée à travers une parmi une tourmaline et une roche éruptive contenant du dioxyde de silicium dans une quantité de 65 à 76 % et ensuite à travers l'autre. De cette manière, les concentrations de radioactivité de l'iode-131 et de trois sortes de césium (césium-134, césium-136 et césium-137) dans la substance contaminée par la radioactivité peuvent être diminuées. |
Author | FUKAI, TOSHIHARU |
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DocumentTitleAlternate | PROCÉDÉ POUR DIMINUER UNE SUBSTANCE RADIOACTIVE AU SEIN D'UNE SUBSTANCE CONTAMINÉE PAR LA RADIOACTIVITÉ |
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Snippet | The present invention provides a method for reducing a radioactive substance, which enables the removal or reduction of a radioactive substance from a plant... |
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SubjectTerms | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DECONTAMINATION ARRANGEMENTS THEREFOR METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT THEIR RELEVANT APPARATUS TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
Title | METHOD FOR REDUCING RADIOACTIVE SUBSTANCE FROM RADIOACTIVELY CONTAMINATED SUBSTANCE |
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