Zendelska, Afrodita and Golomeova, Mirjana and Blažev, Krsto and Krstev, Boris and Golomeov, Blagoj and Krstev, Aleksandar (2014) Kinetic studies of zinc ions removal from aqueous solution by adsorption on natural zeolite. International Journal of Science, Environment and Technology, 3 (4). pp. 1303-1318. ISSN 2278-3687
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Abstract
The kinetics of zinc adsorption onto natural zeolite (clinoptilolite) were studied
with respect to initial metal ion concentration, adsorbent mass and initial pH value. In order
to select the main rate-determining step in the overall uptake mechanism, a series of
experiments were performed under batch conditions from single ion solutions. Data obtained
from the kinetic experiments are interpreted in terms of Pseudo-second order kinetic model,
Weber and Morris model and model proposed by Furusawa and Smith.
The adsorption kinetics is reasonably fast. It means that in the first 20 min approximately
78% of Zn2+ is adsorbed from solutions. From the kinetic data can be concluded that
adsorption of zinc ions from solution by natural zeolite is more efficiency at high pH value
and adsorbent mass, and at lower zinc concentration in solution, but adsorption capacity on
zeolite, qe, increase at higer zinc concentration in solution and pH value.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Chemical sciences |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Afrodita Zendelska |
| Date Deposited: | 07 Aug 2014 10:51 |
| Last Modified: | 07 Aug 2014 10:51 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/10519 |
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