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

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Bibliographic Details
Title:	Iranian natural clinoptilolite and its synthetic zeolite P for removal of cerium and thorium from nuclear wastewaters.
Authors:	Kazemian, H.¹ hkazemian@aeoi.org.ir, Modarres, H.², Mobtaker, H. Ghasemi¹
Source:	Journal of Radioanalytical & Nuclear Chemistry. Nov2003, Vol. 258 Issue 3, p551-556. 6p.
Subjects:	Ion exchange (Chemistry), Clinoptilolite, Zeolites, Cerium, Thorium, Radioactive wastes, Exchange reactions, Chemical research
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 [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

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