FIELD: decontaminating solid iodine filters used in nuclear industry.
SUBSTANCE: proposed method includes bringing filters in contact with aqueous solution of reducing agent chosen from hydroxylamine, hydroxylamine salts, ascorbic acid, ascorbic acid salts, mixed ascorbic acid anhydrides, sodium boron hydride, sodium hypophosphate, formaldehyde, urea, formic acid, and their mixtures so as to extract iodine from filter and to dissolve it in aqueous solution. Silver can be also dissolved at the same time or sequentially in reducing agent or in any other suitable aqueous solution.
EFFECT: enhanced degree of decontamination, facilitated procedure using aqueous solution and simple vat.
13 cl
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