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Iranian natural clinoptilolite and its synthetic zeolite P for removal of cerium and thorium from nuclear wastewaters

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Abstract

The ion-exchange behaviors of an Iranian natural clinoptilolite and its modified forms as well as a relevant synthetic zeolite P were investigated toward cerium and thorium from nuclear wastewaters. Column experiments were performed on different exchangers in various conditions and the effect of parameters such as particle size, pH, temperature, and time were considered. The distribution coefficient, cation exchange capacity and some thermodynamic parameters were calculated. Ion-exchange isotherms and break-through curves were plotted. As a result, the selectivity of synthetic zeolite P from Iranian natural clinoptilolite toward cerium and thorium was compared with that of natural and cationic forms of clinoptilolite

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Authors and Affiliations

  1. Jaber Ibn Hayan Research Labs, Atomic Energy Organization of Iran (AEOI), North Amirabad St., Tehran, Iran

    H. Kazemian & H. Ghasemi Mobtaker

  2. Department of Chemistry, Amir Kabir University (Tehran Poly-Technique), Tehran, Iran

    H. Modarres

Authors
  1. H. Kazemian
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  2. H. Modarres
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  3. H. Ghasemi Mobtaker
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Kazemian, H., Modarres, H. & Ghasemi Mobtaker, H. Iranian natural clinoptilolite and its synthetic zeolite P for removal of cerium and thorium from nuclear wastewaters. Journal of Radioanalytical and Nuclear Chemistry 258, 551–556 (2003). https://doi.org/10.1023/B:JRNC.0000011751.35443.b3

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  • DOI: https://doi.org/10.1023/B:JRNC.0000011751.35443.b3

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