Sorption Recovery of Cesium from High Level Alkaline Waste from Mayak Production Association

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The results of the sorption of 137Cs from the clarified phase of accumulated high-level alkaline radioactive waste from the Mayak Production Association using sorbents based on modified nickel ferrocyanide (Fersal) and resorcinol–formaldehyde resin (RFS-I) in batch and flow conditions are presented. In batch conditions, the distribution coefficient of 137Cs on Fersal and RFS-I sorbents is 2300 and 730 cm3/g, respectively. In flow conditions, the volume of the passed solution before the 137Cs breakthrough for Fersal and RFS-I sorbents is 140 and 85 column volumes, and the maximum purification factor is 104 and 103, respectively. To desorb cesium from the Fersal and the RFS-I, 8 mol/dm3 HNO3 and 1 mol/dm3 HNO3 solutions, respectively, were used. A decrease in the sorption characteristics of the RFS-I sorbent during the sorption of cesium from high-level alkaline radioactive waste was discovered. A conclusion about the possibility of using the Fersal sorbent for the recovery of 137Cs from high-level alkaline radioactive waste from the Mayak Production Association has been made.

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作者简介

K. Feoktistov

Mayak Production Association

Email: vmilyutin@mail.ru
俄罗斯联邦, pr. Lenina 31, Ozyorsk, Chelyabinsk oblast, 456784

D. Markova

Mayak Production Association

Email: vmilyutin@mail.ru
俄罗斯联邦, pr. Lenina 31, Ozyorsk, Chelyabinsk oblast, 456784

P. Kozlov

Mayak Production Association

Email: vmilyutin@mail.ru
俄罗斯联邦, pr. Lenina 31, Ozyorsk, Chelyabinsk oblast, 456784

S. Shaydullin

Mayak Production Association

Email: vmilyutin@mail.ru
俄罗斯联邦, pr. Lenina 31, Ozyorsk, Chelyabinsk oblast, 456784

V. Milyutin

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: vmilyutin@mail.ru
俄罗斯联邦, Leninskii pr. 31, korp. 4, Moscow, 119071

N. Nekrasova

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

Email: vmilyutin@mail.ru
俄罗斯联邦, Leninskii pr. 31, korp. 4, Moscow, 119071

M. Tutov

Institute of Chemistry, Far East Branch, Russian Academy of Sciences

Email: vmilyutin@mail.ru
俄罗斯联邦, pr. Stoletyia Vladivostoka 159, Vladivostok, 690092

A. Yegorin

Institute of Chemistry, Far East Branch, Russian Academy of Sciences

Email: vmilyutin@mail.ru
俄罗斯联邦, pr. Stoletyia Vladivostoka 159, Vladivostok, 690092

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2. Fig. 1. Output curves of caesium sorption on Versailles (1, 2) and RFS-I (3, 4) sorbents from the clarified part of alkaline BAO (1, 3) and the model solution (2, 4).

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3. Fig. 2. Output curves of cesium sorption on the RFS-I sorbent in three consecutive cycles. The curve numbers correspond to the cycle number.

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