Zendelska, Afrodita and Golomeova, Mirjana and Golomeov, Blagoj and Krstev, Boris (2018) Zeolite bearing tuff as an adsorbent for heavy metals removal from aqueous solutions and a acid mine drainage. ECOTERRA - Journal of Environmental Research and Protection , 15 (1). pp. 35-43. ISSN Printed ISSN: 1584-7071 Online ISSN: 2248-3128
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Abstract
Zeolite bearing tuff (stilbite 27%) from Vetunica deposit, localized in northern marginal parts
of the Kratovo-Zletovo volcanic area in Republic of Macedonia was investigated as an adsorbent for
removal of copper, zinc, manganese and lead ions from synthetic aqueous solutions and acid mine
drainage from Sasa lead - zinc mine in Republic of Macedonia. In order to determine the metals uptake
at equilibrium a series of experiments were performed under batch conditions from single ion solutions.
Experiments were carried out at different initial concentration of metal ions, at initial pH = 3.5,
temperature of 20±1oC and agitation time up to 360 min. The adsorption isotherm of the metal ions on
the adsorbent was determined and correlated with the Langmuir and the Freundlich adsorption isotherm
models. The Langmuir isotherm exhibited a better fit for the adsorption data for copper, lead and
manganese ions, but adsorption of zinc ions is fitting by the Freundlich isotherm. According to the
maximum adsorption capacity (qe) it was determined the selectivity of zeolite bearing tuff for the
respective heavy metal ions. The selectivity series was Pb2+ > Cu2+ > Zn2+ >Mn2+. The adsorption of
copper, zinc, manganese and lead ions from diluted solution and acid mine drainage on to zeolite bearing
tuff occurs efficiently.
| Item Type: | Article |
|---|---|
| Subjects: | Engineering and Technology > Environmental engineering |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Afrodita Zendelska |
| Date Deposited: | 23 May 2018 08:59 |
| Last Modified: | 23 May 2018 08:59 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/20023 |
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