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Evaluation of cerium–zirconium mixed oxides for separation of 125Sb from radioactive liquid waste

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Abstract

Low level radioactive liquid waste (LLW) contains various radioisotopes like 125Sb, 106Ru, 99Tc and traces of 137Cs, 134Cs, 90Sr. Chemical co-precipitation method is effectively used for removal of most of the radionuclides. However, the effluent still contains traces of 125Sb and needs further processing. The present study aims at the removal of 125Sb from LLW using inorganic sorbents Na0.66Ce1.33Zr2O7 and Ce2MgZrO7. These sorbents were prepared via gel-combustion method and thoroughly characterized by XRD, SEM and BET surface area measurement. The distribution coefficient (Kd) was evaluated as a function of various parameters like total dissolved salts, effect of concentration, etc. Freundlich and Langmuir isotherms were plotted and the data is discussed in this paper.

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Authors and Affiliations

  1. Nuclear Recycle Board, Bhabha Atomic Research Centre, Tarapur, 401504, India

    D. A. Thakur, T. P. Valsala, D. B. Sathe & R. B. Bhatt

  2. BARC Safety Council, BSCS, Bhabha Atomic Research Centre, Mumbai, 400085, India

    N. L. Sonar

  3. Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, India

    R. Shukla & A. K. Tyagi

Authors
  1. D. A. Thakur
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  2. N. L. Sonar
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  3. R. Shukla
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  4. T. P. Valsala
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  5. D. B. Sathe
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  6. R. B. Bhatt
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  7. A. K. Tyagi
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Correspondence to A. K. Tyagi.

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Thakur, D.A., Sonar, N.L., Shukla, R. et al. Evaluation of cerium–zirconium mixed oxides for separation of 125Sb from radioactive liquid waste. J Radioanal Nucl Chem 331, 2903–2909 (2022). https://doi.org/10.1007/s10967-022-08369-z

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  • DOI: https://doi.org/10.1007/s10967-022-08369-z

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