<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The efficiency of walnut, pistachio and hazelnut shells to remove three monochlorophenols (2-CP, 3-CP and 4-CP) from aqueous solutions has been investigated. To describe the kinetic data pseudo-first and pseudo-second order models were used. The kinetics data were fitted better into the pseudo-second order model with the coefficient of determination values greater than 0.99. The k<sub>2</sub> values increased in the order 4-CP &lt; 3-CP &lt; 2-CP. Sorption was also analyzed as a function of solution concentration at equilibrium. The experimental data received were found to be well described by the Freundlich isotherm equation. Effectiveness of chlorophenols removal from water on the walnut, pistachio and hazelnut shells was comparable. Individual differences in sorption of monochlorophenols were also negligible.</p></abstract>

The efficiency of walnut, pistachio and hazelnut shells to remove three monochlorophenols (2-CP, 3-CP and 4-CP) from aqueous solutions has been investigated. To describe the kinetic data pseudo-first and pseudo-second order models were used. The kinetics data were fitted better into the pseudo-second order model with the coefficient of determination values greater than 0.99. The k2 values increased in the order 4-CP < 3-CP < 2-CP. Sorption was also analyzed as a function of solution concentration at equilibrium. The experimental data received were found to be well described by the Freundlich isotherm equation. Effectiveness of chlorophenols removal from water on the walnut, pistachio and hazelnut shells was comparable. Individual differences in sorption of monochlorophenols were also negligible.

Removal of chlorophenols from aqueous solutions by sorption onto walnut, pistachio and hazelnut shells

Military University of Technology, Institute of Chemistry, gen. Sylwester Kaliski 2, 00-908 Warsaw, Poland

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The efficiency of walnut, pistachio and hazelnut shells to remove three monochlorophenols (2-CP, 3-CP and 4-CP) from aqueous solutions has been investigated....

Removal of chlorophenols from aqueous solutions by sorption onto walnut, pistachio and hazelnut shells

Publié en ligne: 25 mars 2015

Pages: 23 - 31

DOI: https://doi.org/10.1515/pjct-2015-0005

© by Krzysztof Kuśmierek

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.