Authors:
K. M. Abd El-RahmanHot Laboratory Center, Atomic Energy Authority P.O. Box 13759, Cairo, Egypt

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A. M. El-KamashHot Laboratory Center, Atomic Energy Authority P.O. Box 13759, Cairo, Egypt

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M. R. El-SourougyHot Laboratory Center, Atomic Energy Authority P.O. Box 13759, Cairo, Egypt

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N. M. Abdel-MoniemChemical Engineering Department, Faculty of Engineering, Cairo University Cairo, Egypt

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Summary  

The batch removal ofCs+, Sr2+, Ca2+and Mg2+ions from aqueous solutions using synthetic zeolite A was investigated. The influence of the initial ion concentration, pH and temperature was studied. The obtained isotherm data have been correlated with Langumir, Freundlich, and Dubinin-Radushkevich(D-R) isotherm models. The effect of the temperature on the equilibrium distribution values has been utilized to evaluate the standard thermodynamic parameters such as free energy (DG), enthalpy (DH) and entropy (DS). Based on the D-R isotherm expression, the maximum ion-exchange capacity and the mean free energy of each studied ion has been determined. The selectivity sequence, deduced from the equilibrium isotherm data is: Sr2+>Ca2+>Mg2+>Cs+>Na+.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)