| 摘要 |
PROBLEM TO BE SOLVED: To provide a radioactive cesium separation enrichment method, a radioactive cesium separation enrichment device, a radioactive cesium removal method and a radioactive cesium removal device which can efficiently perform separation enrichment of radioactive cesium contained in a processed material such as soil and incinerated ash by adjusting a composition thereof on the basis of a versatile index and thereby significantly reducing a volume of the processed material.SOLUTION: A radioactive cesium separation enrichment method, which performs separation enrichment of radioactive cesium contained in a processed material by heating treatment, comprises: an optical basicity adjustment process which adds an optical basicity adjustment agent to the processed material so that optical basicity of the processed material becomes not less than a predetermined value; a separation process which heats the processed material with the optical basicity adjustment agent added thereto at a temperature of 1200°C to 1700°C and separates the radioactive cesium from the processed material by vaporizing the same; and a collection process to collect the radioactive cesium vaporized and separated in the separation process. |
