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http://dx.doi.org/10.9727/jmsk.2014.27.1.41

Characterization of Natural Zeolite for Removal of Radioactive Nuclides  

Kim, Hu Sik (Department of Applied Chemistry, Andong National University)
Park, Won Kwang (Department of Applied Chemistry, Andong National University)
Lee, Ha Young (Department of Applied Chemistry, Andong National University)
Park, Jong Sam (Department of Radiologic Technology, Daegu Health College)
Lim, Woo Taik (Department of Applied Chemistry, Andong National University)
Publication Information
Journal of the Mineralogical Society of Korea / v.27, no.1, 2014 , pp. 41-51 More about this Journal
Abstract
The four natural zeolites collected in Pohang and Gyeongju area, Kyungsangbuk-do, Korea, were characterized by XRD, XRF, DTA, TGA, and CEC analysis. The primary species of these zeolite are heulandite, modenite, illite, and illite in Kuryongpo (Ku), Pohang (Po), Yangbuk-A (Ya-A), and Yangbuk-B (Ya-B) samples. The XRF analysis showed that the four zeolites contain Si, Al, Na, K, Mg, Ca, and Fe. Cation exchange capacity of Kuryongpo (Ku) zeolite was the highest compared to other zeolites. The adsorption capacities of Cs and Sr in the four natural zeolites were compared at $25^{\circ}C$. On the basis of adsorption data Langmuir and Freundlich adsorption isotherm model were confirmed. The equilibrium process was descried well by Langmuir isotherm model. This study shows that Ya-A zeolite is the most efficient for the $Cs^+$ and $Sr^{2+}$ ion adsorption compared to the other natural zeolites.
Keywords
Natural zeolite; Cesium; Strontium; Adsorption;
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Times Cited By KSCI : 2  (Citation Analysis)
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