Окислительная очистка кубовых остатков жидких радиоактивных отходов от органических веществ и трансурановых элементов

Abstract

Regularities of the oxidizing purification of deep blue residues of liquid radioactive wastes (LRW) from organic compounds and transuranium elements (TUE) with the use of hydrogen peroxide, and permanganate of potassium and the subsequent ultrafiltration are studied. The optimum modes of oxidization are established. Under the indicated conditions, the initial dichromate oxidizability of deep blue tailings of LRW goes down from 6000–9500 to 500–1000 mgO2/dm3, the activity of TUE diminishes on the isotopes of 238, 239 , 240Pu by > 74–87%, 241Am by > 94–95%, 244Cm by > 90–95%, and the concentration of uranium by 94–99%. Introduction of the developed method on the Chernobyl NPP is offered.