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Removal of cesium and strontium from acid solution using a composite of zirconium molybdate and zirconium tungstate

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Abstract

A composite mixture of zirconium molybdate and zirconium tungstate was prepared and studied for the sorption of cesium and strontium as a function of nitric acid, metal ion concentration, time and temperature. The distribution coefficient (Kd) of 7000 ml/g (~90% sorption) and 70 ml/g (~20% sorption) was obtained for the sorption of cesium and strontium in 0.1M nitric acid, respectively. Experimental sorption capacity, b for cesium was found to be 50 mg/g from 0.1M HNO3 and 30 mg/g for strontium from 0.001M nitric acid. The sorption of strontium on the sorbent was accompanied by the absorption of heat but the sorption of Cs+ results in the liberation of heat. Column studies were conducted by following a breakthrough (BT) curve of cesium and strontium up to C/C0=1 and the results are reported.

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Authors and Affiliations

  1. Nuclear Chemistry Section, School of Chemistry, Andhra University, Visakhapatnam, 530 003, India

    S. S. Kumar, M. V. Sivaiah, R. M. Krishna & G. S. Murthy

  2. Fuel Chemistry Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603 102, India

    K. A. Venkatesan

  3. Safety Research Institute, Atomic Energy Regulatory Board, Kalpakkam, 603 102, India

    P. Sasidhar

Authors
  1. S. S. Kumar
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  2. M. V. Sivaiah
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  3. K. A. Venkatesan
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  4. R. M. Krishna
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  5. G. S. Murthy
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  6. P. Sasidhar
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Kumar, S.S., Sivaiah, M.V., Venkatesan, K.A. et al. Removal of cesium and strontium from acid solution using a composite of zirconium molybdate and zirconium tungstate. Journal of Radioanalytical and Nuclear Chemistry 258, 321–327 (2003). https://doi.org/10.1023/A:1026241906044

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