<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In the present study, sawdust an industrial by-product available in large quantities as sorbent material was studied. The removal adsorption capacity of Cu(II) and Zn(II) from aquatic solutions was obtained. The batch experiments were carried out to determine the effect of initial concentration of copper/zinc solution at pH=4.0 onto natural hornbeam and hornbeam modified with NaOH and KOH. The Fourier transform infrared spectroscopy (FTIR) determined the changes in functional groups after the modification of sawdust. The equilibrium data were fitted with four isotherm models - Langmuir, Freundlich, Tempkin and Dubinin– Radushkevich. The Langmuir model was found to be most suitable and the maximum adsorption capacity obtained for modified hornbeam sawdust was 2 to 4-times higher as in natural one for both heavy metals.</p></abstract>

In the present study, sawdust an industrial by-product available in large quantities as sorbent material was studied. The removal adsorption capacity of Cu(II) and Zn(II) from aquatic solutions was obtained. The batch experiments were carried out to determine the effect of initial concentration of copper/zinc solution at pH=4.0 onto natural hornbeam and hornbeam modified with NaOH and KOH. The Fourier transform infrared spectroscopy (FTIR) determined the changes in functional groups after the modification of sawdust. The equilibrium data were fitted with four isotherm models - Langmuir, Freundlich, Tempkin and Dubinin– Radushkevich. The Langmuir model was found to be most suitable and the maximum adsorption capacity obtained for modified hornbeam sawdust was 2 to 4-times higher as in natural one for both heavy metals.

Equilibrium isotherm studies of copper and zinc removal from model solutions using natural and alkaline treated hornbeam sawdust

Faculty of Management, Department of Environmental Management

Selected Scientific Papers - Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

In the present study, sawdust an industrial by-product available in large quantities as sorbent material was studied. The removal adsorption capacity of Cu(II)...

Equilibrium isotherm studies of copper and zinc removal from model solutions using natural and alkaline treated hornbeam sawdust

Published Online: Dec 31, 2020

Page range: 37 - 47

DOI: https://doi.org/10.1515/sspjce-2020-0016

Keywords
copper, zinc, sorption, wooden sawdust, adsorption isotherm, FTIR spectroscopy

© 2020 Zdenka Kováčová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Equilibrium isotherm studies of copper and zinc removal from model solutions using natural and alkaline treated hornbeam sawdust

Published Online: Dec 31, 2020

Page range: 37 - 47

DOI: https://doi.org/10.1515/sspjce-2020-0016

Keywordscopper, zinc, sorption, wooden sawdust, adsorption isotherm, FTIR spectroscopy

© 2020 Zdenka Kováčová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
copper, zinc, sorption, wooden sawdust, adsorption isotherm, FTIR spectroscopy