Method of decontaminating radioactive metallic wastes

摘要

This invention relates to a chemical method of effectively decontaminating metallic wastes that have been contaminated by radioactive substances and which have resulted from the demolition of nuclear power plants or reactors in operation. The method is that when the increase in the amount of dissolution of metal ions from the wastes causes the potential of the aqueous sulfuric acid to increase beyond a certain level, the dissolved metal ions are reduced electrolytically to control the potential of said aqueous sulfuric acid to become lower than said certain level.