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Removal of137Cs from an intermediate level liquid waste by using various ion-exchange media

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Abstract

An intermediate level liquid waste (ILLW or Category III waste) stream was treated for the removal of radioactive Cs in pilot scale experiments, using three different ion exchange media. Results indicated that the polyacrylic fibre coated with cupric ferric hexacyanoferrate (CuFeHCF-fibre composite) was the most efficient, followed by cupric hexacyanoferrate loaded ion exchange resin (CuHCF-resin) and mixed zeolites (AR-1, 4A and 13X in the ratio 6:1:1). The mixed zeolites column and the CuFeHCF-fibre column were used in series in order to get a high total decontamination factor (DF). Leaching studies on the CuFeHCF-fibre composite loaded with137Cs, in demineralised (DM) water, tap water and ground water media indicated a release of about 19.3%, 25.5% and 41.3% of137Cs, respectively, in a period of about 8 months. XPS studies with CuFeHCF-fibre composite indicated some chemical interaction between the CuFeHCF precipitate and the polyacrylic fibre. Some of the possible disposal options for the CuFeHCF-fibre composite have also been discussed.

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Authors and Affiliations

  1. BARC Facilities, Centralised Waste Management Facility, Fuel Reprocessing and Nuclear Waste Management Group, Kalpakkam 603 102, Tamil Nadu, India

    P. K. Sinha, P. M. Satyasai, R. Shankar, R. Muthiah, A. N. Pandey & A. Jaleel

  2. Water and Steam Chemistry Laboratory, Chemical Group, BARC Facilities, Kalpakkam, 603 102, Tamil Nadu, India

    S. Bera & S. V. Narasimhan

Authors
  1. P. K. Sinha
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  2. P. M. Satyasai
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  3. R. Shankar
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  4. R. Muthiah
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  5. S. Bera
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  6. S. V. Narasimhan
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  7. A. N. Pandey
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  8. A. Jaleel
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Sinha, P.K., Satyasai, P.M., Shankar, R. et al. Removal of137Cs from an intermediate level liquid waste by using various ion-exchange media. J Radioanal Nucl Chem 242, 341–348 (1999). https://doi.org/10.1007/BF02345562

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  • DOI: https://doi.org/10.1007/BF02345562

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