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http://dx.doi.org/10.5322/JES.2011.20.11.1437

Adsorption of Lead Ion by Zeolites Synthesized from Jeju Scoria  

Kam, Sang-Kyu (Department of Environmental Engineering, Jeju National University)
Hyun, Sung-Su (Institute of Health & Environment, Jeju Special Self-Governing Province)
Lee, Min-Gyu (Department of Chemical Engineering, Pukyong National University)
Publication Information
Journal of Environmental Science International / v.20, no.11, 2011 , pp. 1437-1445 More about this Journal
Abstract
The adsorption performance of lead ion was studied using five zeolites (Na-P1, sodalite (SOD), analcime (ANA), nepheline hydrate (JBW), cancrinite (CAN)) synthesized from Jeju scoria. The adsorption performances of lead ion decreased in the order of Na-P1 > SOD > ANA > JBW > CAN. These results showed that the synthetic zeolite with a higher cationic exchange capacity showed a higher adsorption performance. The uptake of lead ion by synthetic zeolites were described by Freundlich model better than Langmuir model. The adsorption kinetics of lead ion by synthetic zeolites fitted the pseudo 2nd order kinetics better than pseudo 1st order kinetics. The effective diffusion coefficients of lead ion by synthetic zeolites were ten times higher than the zeolite A synthesized from coal fly ash.
Keywords
Scoria; Synthetic zeolite; Lead; Adsorption;
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Times Cited By KSCI : 2  (Citation Analysis)
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