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Abstract <p>Spent iodine-bearing sorbents accumulated at the Mayak Production Association were subjected to chemical and radiochemical analysis. The mass fractions of sorbent macrocomponents (Al, Ag, NO<sub>3</sub><sup>–</sup>, and total I) and related impurities (F<sup>–</sup>, Cl<sup>–</sup>, and SO<sub>4</sub><sup>2–</sup>) were measured. The total specific α- and β-activity, the specific activity of long-lived α- and β-emitting radionuclides whose identification was analytically possible (<sup>99</sup>Tc, U and Pu isotopes, and <sup>241</sup>Am), and that of the main dose-producing radionuclides (<sup>129</sup>I, <sup>137</sup>Cs and <sup>90</sup>Sr) were determined. The uniformity of the Al, Ag, NO<sub>3</sub><sup>–</sup>, <sup>129</sup>I, <sup>137</sup>Cs and <sup>90</sup>Sr distribution in the columns was estimated.</p>

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Chemical and Radiochemical Analysis of the Spent Sorbent from Iodine Adsorption Columns of the Mayak PA RT Plant

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • Ye. V. Chukhlantseva,
  • Yu. M. Tatarnikova,
  • S. V. Stepanov,
  • O. V. Stepanova,
  • K. A. Dzhevello

摘要

Abstract

Spent iodine-bearing sorbents accumulated at the Mayak Production Association were subjected to chemical and radiochemical analysis. The mass fractions of sorbent macrocomponents (Al, Ag, NO3–, and total I) and related impurities (F–, Cl–, and SO42–) were measured. The total specific α- and β-activity, the specific activity of long-lived α- and β-emitting radionuclides whose identification was analytically possible (99Tc, U and Pu isotopes, and 241Am), and that of the main dose-producing radionuclides (129I, 137Cs and 90Sr) were determined. The uniformity of the Al, Ag, NO3–, 129I, 137Cs and 90Sr distribution in the columns was estimated.