Abstract
Treatment of the bottoms of the Leningrad Nuclear Power Plant to remove radionuclide using ferrocyanide sorbent was studied. To improve the efficiency of radionuclide sorption on the sorbent, the bottoms were subjected to a preliminary treatment involving oxidation of organic compounds and ferrocyanide precipitation. The oxidation was performed using hydrogen peroxide and potassium permanganate instead of expensive ozone. The conditions of ferrocyanide precipitation from the preliminarily oxidized bottoms and of further separation of the resulting precipitate were determined. It was found that ferrocyanide oxidation decreases the activity of the bottoms by more than two orders of magnitude.
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