SEPARATION AND RECOVERY METHOD OF RADIOACTIVE ALKALI METAL AND/OR RADIOACTIVE ALKALI EARTH METAL

摘要

PROBLEM TO BE SOLVED: To provide a method for efficiently separating and recovering radioactive alkali metals and/or radioactive alkali earth metals contained in contaminated soil or contaminated water.;SOLUTION: Organic acid or an aqueous solution of organic acid is added to a contaminated target such as topsoil and paddy field removed from contaminated soil or contaminated water, and radioactive substances contained in the contaminated target are extracted into a liquid by chelate action to obtain an extract solution. A condensation agent is further added to the obtained extract solution, and the radioactive substances contained in the extract solution are taken into the condensation agent and gelatinized.;COPYRIGHT: (C)2013,JPO&INPIT