METHOD FOR ELIMINATING RADIOACTIVE CESIUM AND METHOD FOR PRODUCING BURNED PRODUCT

WIPO Patent Application WO/2014/068800

A1

Provided is a method for easily and efficiently eliminating radioactive cesium from a waste material contaminated by radioactive cesium. The method for eliminating radioactive cesium includes a heating step for heating a CaO source and/or an MgO source with a waste material contaminated by radioactive cesium to 1200-1350°C, vaporizing the radioactive cesium in the waste material. In the heating step, the type and fraction admixed of each of the waste material, the CaO source, and the MgO source are determined in a manner so that the respective masses of CaO, MgO, and SiO2 satisfy ((CaO+1.39×MgO)/SiO2) = 1.0 to 2.5 (in the formula, CaO, MgO, and SiO2 respectively represent the mass of calcium in terms of the oxide, the mass of magnesium in terms of the oxide, and the mass of silicon in terms of the oxide).

JPS61204595	METHOD OF TREATING RADIOACTIVE WASTE
JP6715235	Methods and equipment for purifying environmentally devastated areas due to pollution, especially methods and equipment for reducing radiation exposure to environmentally devastated areas due to radioactive contamination
JPH0473508	DAMPER DRIVE MEANS

HONMA KENICHI (JP)
OKAMURA SOICHIRO (JP)
OGIRI TETSUO (JP)
SAKAMOTO YOSHIAKI (JP)

PCT/JP2012/083594

May 08, 2014

December 26, 2012

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TAIHEIYO CEMENT CORP (JP)
HONMA KENICHI (JP)
OKAMURA SOICHIRO (JP)
OGIRI TETSUO (JP)
SAKAMOTO YOSHIAKI (JP)

G21F9/32; G21F9/28

JP2004037458A	2004-02-05
JP2003315499A	2003-11-06
JPH05157897A	1993-06-25

See also references of EP 2913826A4

HIRATA, Naoyuki (JP)
Naoyuki Hirata (JP)

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