METHOD OF DEACTIVATING LIQUID EFFLUENT, CONTAINING ONE OR MORE RADIOACTIVE CHEMICAL ELEMENTS, BY PROCESSING IN FLUIDISED BED

摘要

FIELD: chemistry.;SUBSTANCE: claimed invention relates to method of deactivating liquid effluent, containing one or several intended for removal radioactive chemical elements. Claimed method includes the following stages: stage of bringing in contact in mixed fluidised bed in first zone of reactor said liquid effluent with solid particles, capable of capturing and holding said radioactive chemical element(s) due to joint sedimentation and/or absorption, and/or ionic exchange, which results in obtaining suspension of solid particles, containing said radioactive chemical element(s); stage of settling said suspension in second zone of the same reactor, with second zone being separate from said first zone, which results in obtaining solid phase, containing solid particles with said or said intended for removal radioactive chemical elements, and liquid phase with low content or which does not contain said intended for removal radioactive chemical element(s); and stage of separating said solid phase and said liquid phase.;EFFECT: increased efficiency of effluent deactivation without increase of sludge volume.;11 cl, 3 dwg