DISPOSAL METHOD OF RADIOACTIVE METAL WASTES UTILIZING MELTING DECONTAMINATION

摘要

PURPOSE: A method for disposing radioactive metal waste using melting decontamination is provided to rapidly determine the disposal possibility of an ingot by calculating the radioactivity of the ingot using a gamma spectroscopy. CONSTITUTION: Metal waste contaminated by radioactivity is classified according to a classification standard and is melt(S10). A slag is removed by injecting an impurity remover(S21,S22). An ingot is made by pouring melt without the slag in a mold(S30). A radioactive value of the ingot is produced(S40). It is determined whether the ingot whose radioactivity is completely measured satisfies a standard(S50). [Reference numerals] (S11) Classifying waste; (S12) Decontaminating a surface; (S13) Inputting metal waste to melting furnace; (S21) Injecting an impurity remover into melt; (S22) Removing slag; (S23) Inputting deoxidizer; (S30) Manufacturing an ingot; (S40) Calculating the radioactivity of an ingot; (S50) Determining classification according to a self-disposal standard