Title:
過酸化水素を用いた粘土鉱物中のセシウムの除去方法及び処理装置
Document Type and Number:
Japanese Patent JP6779249
Kind Code:
B2
Abstract:
The present invention relates to a method for removing cesium in a clay mineral using hydrogen peroxide. According to the present invention, cesium in a clay mineral is removed using hydrogen peroxide, which serves to induce interlayer expansion of the clay mineral to allow a cation to easily enter an interlayer of the clay mineral, and thus cesium desorption efficiency can be further improved. Also, the method according to the present invention can be efficiently used to restore soil in residential areas widely contaminated with a radionuclide when a major accident such as Fukushima nuclear accident occurs as well as various sites of atomic energy facilities contaminated with a radionuclide. Also, since radiation-contaminated soil is treated with only hydrogen peroxide and cations, secondary environmental pollution caused by wastes can be significantly reduce and the waste disposing cost can also be saved.
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Inventors:
Kim Il Guk
Ikunwoo
Pakchanu
Yun In Ho
Yang Himan
Sobom Kyung
Ikunwoo
Pakchanu
Yun In Ho
Yang Himan
Sobom Kyung
Application Number:
JP2018080169A
Publication Date:
November 04, 2020
Filing Date:
April 18, 2018
Export Citation:
Assignee:
KOREA ATOMIC ENERGY RESEARCH INSTITUTE
International Classes:
G21F9/28; B09C1/02; B09C1/08; C01B33/40; G21F9/12
Domestic Patent References:
| JP2018017510A | ||||
| JP2013094723A | ||||
| JP2016001115A | ||||
| JP2014529067A | ||||
| JP2012230096A | ||||
| JP2015051416A |
Foreign References:
| WO2013186873A1 | ||||
| KR1020100117715A | ||||
| US20070112241 | ||||
| US20160314858 |
Attorney, Agent or Firm:
Hiroaki Kono