METHOD FOR DECONTAMINATING LIQUID RADIOACTIVE WASTES Russian patent published in 2005 - IPC

Abstract RU 2254627 C2

FIELD: recovery of liquid radioactive wastes.

SUBSTANCE: proposed method includes treatment of radioactive wastes by heavy-metal ferrocyanide and separation of sediment obtained. In the process liquid radioactive wastes are treated with heavy-metal ferrocyanide formed upon introduction of potassium ferrocyanide and bivalent nickel and/or copper and iron salts taken in amount abundant with respect to stoichiometric quantity. Clarified solution is treated with oxidant upon separation of sediment and filtered through catalytic material containing manganese dioxide. Then filtered-off solution is passed through highly acid cationite in Na-form and highly basic anionite in Cl-form.

EFFECT: enhanced decontamination quality.

5 cl, 1 tbl, 7 ex

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RU 2 254 627 C2

Authors

Rjabchikov B.E.

Larionov S.Ju.

Sibirev A.V.

Tugolukov V.V.

Gelis V.M.

Dates

2005-06-20Published

2003-07-14Filed