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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Main Author FUKAI, TOSHIHARU
Format Patent
LanguageEnglish
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.
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...
SourceID epo
SourceType Open Access Repository
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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