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Removal of 99Tc from low level radioactive liquid waste using di-tert-butyldibenzo-18-crown-6 impregnated sorbent

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A Correction to this article was published on 23 September 2021

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Abstract

Low level radioactive liquid waste (LLW) is generated at different stages of operation of reprocessing as well as radioactive waste management. The LLW generated here is alkaline with high salt content. It contains different radioisotopes namely106Ru, 125Sb, 99Tc, 137Cs, 90Sr and traces of Pu. Presence of 99Tc in LLW is of great environmental concern due to its long half-life (T1/2: 2 × 105 years) and mobility. Hence it needs to be separated from LLW to maximum possible extent prior to discharge to environment. In this paper, study carried out for separation of 99Tc using the crown ether, Di-tert-Butyldibenzo-18-Crown-6 (DtBuDB18C6). The performance of the composite material was evaluated with respect to 99Tc uptake and the effect of various parameters like pH, salt concentration, time period and temperature on Kd value was studied.

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Authors and Affiliations

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

    D. A. Thakur, N. L. Sonar & T. P. Valsala

  2. Glass and Advanced Materials Division, Bhabha Atomic Research Centre, Mumbai, 400085, India

    J. N. Sharma

Authors
  1. D. A. Thakur
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  2. N. L. Sonar
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  3. J. N. Sharma
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  4. T. P. Valsala
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Correspondence to D. A. Thakur.

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Thakur, D.A., Sonar, N.L., Sharma, J.N. et al. Removal of 99Tc from low level radioactive liquid waste using di-tert-butyldibenzo-18-crown-6 impregnated sorbent. J Radioanal Nucl Chem 328, 113–119 (2021). https://doi.org/10.1007/s10967-020-07553-3

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  • DOI: https://doi.org/10.1007/s10967-020-07553-3

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