METHOD FOR REMOVING RADIOACTIVE SUBSTANCE

PROBLEM TO BE SOLVED: To provide a method for decontaminating a structure surface, which, unlike a grinding-based decontamination method, can be performed at a practical cost without breaking an object, damaging the surface, generating dust, or increasing secondary contaminated waste.SOLUTION: A met...

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Bibliographic Details
Main Author NAGASE ATSUSHI
Format Patent
LanguageEnglish
Japanese
Published 16.03.2015
Subjects
CHEMISTRY
COMPOUNDS THEREOF
DECONTAMINATION ARRANGEMENTS THEREFOR
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
PHYSICS
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT
TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Summary:PROBLEM TO BE SOLVED: To provide a method for decontaminating a structure surface, which, unlike a grinding-based decontamination method, can be performed at a practical cost without breaking an object, damaging the surface, generating dust, or increasing secondary contaminated waste.SOLUTION: A method for decontaminating a structure surface removes a radioactive substance attached to a structure surface by spraying a montmorillonite solution, in which finely powdered montmorillonite is dispersed in water, over a structure or the like contaminated by a radioactive substance attached to a surface thereof to adsorb the radioactive substance and cleaning and polishing the surface. 【課題】研削による除染方法のように対象物を破損したり表面を傷つけたり粉じんの発生や二次的な汚染廃棄物を増加させることなく現実的なコストで実施できる、構造物表面の除染方法を提供する。【解決手段】微細に粉末化したモンモリロナイトを水に分散させたモンモリロナイト溶液を用い、放射性物質が表面に付着して汚染された構造物等に散布し、放射性物質を吸着させて洗浄するとともに表面を研磨して構造物表面に付着した放射性物質を除去する，構造物表面の除染方法。【選択図】なし
Bibliography:Application Number: JP20130197477