Optimization of chemical and electrochemical decontamination for application at nuclear power plants

The electrolyte for electrochemical decontamination in solution contains 1% oxalic acid, 0.5% citric acid and 1.2% boric acid; sulfosalicylic, p-toluenesulfonic, aniline-2,5-disulfonic and chromotropic acids show promise as components of the electrolyte. The procedure for the chemical decontamination of contaminated stainless steels was optimized as well as the oxidation-decontamination and the reduction-decontamination solutions. The effects of the solution composition, period for which it is allowed to act and its temperature on the decontamination factor are presented in a tabular form. The method of so-called soft primary circuit decontamination with dilute solutions is described. (M.D.). 7 tabs., 13 refs