APPARATUS FOR PROCESSING CONTAMINATED FLY ASH, AND PROCESSING METHOD OF CONTAMINATED FLY ASH

摘要

PROBLEM TO BE SOLVED: To provide a technique for processing contaminated fly ash, in which eluted radioactive cesium is adsorbed with high efficiency after washing radiation contaminated fly ash with a water solvent.SOLUTION: An apparatus 10A for processing contaminated fly ash includes: a contaminated fly ash depositing unit 11 in which contaminated fly ash of radioactive cesium is deposited; a washing water infusion unit 12 into which washing water is infused; an elution unit 13 in which the deposited contaminated fly ash is mixed with the infused washing water to elute cesium; a solid-liquid separation unit 14A in which a suspension liquid containing the fly ash from which cesium is eluted and the water, is separated into a solid phase and a liquid phase; a cesium water solution collecting unit 15 in which a cesium water solution separated as the liquid phase is collected; a neutralizer adding unit 16A which adds a neutralizer into the elution unit 13; and a cesium adsorption unit 17 in which cesium is adsorbed and eliminated from the cesium water solution.