<abstract xmlns="http://www.w3.org/1999/xhtml">Biochar produced from fermentation residue of maize hybrid was used in untreated form as a sorbent for the removal of Cd(II), Pb(II) and Zn(II) from aqueous solution. The capability of biochar to immobilized ions was investigated by leaching test. Equilibrium between biochar sample and studied elements in solution was reached at a contact time 30 min for Zn(II) and 90 min for Pb(II) and Cd(II). The experimental data were described by pseudofirst-order and pseudo-second-order kinetic model, two- and three-parameter isotherms in non-linear form. The maximum sorption capacity achieved was 30.07 mg·g−1 in the case of Cd(II) ions, 99.44 mg·g−1 in the case of Pb(II) and 40.18 in the case of Zn(II). Biochar developed for this study is comparable to conventional biochar, low cost, non-toxic and experimental results show that is a suitable and efficient sorbent for Cd(II), Pb(II) and Zn(II) removal from aqueous solutions.</abstract>

Biochar produced from fermentation residue of maize hybrid was used in untreated form as a sorbent for the removal of Cd(II), Pb(II) and Zn(II) from aqueous solution. The capability of biochar to immobilized ions was investigated by leaching test. Equilibrium between biochar sample and studied elements in solution was reached at a contact time 30 min for Zn(II) and 90 min for Pb(II) and Cd(II). The experimental data were described by pseudofirst-order and pseudo-second-order kinetic model, two- and three-parameter isotherms in non-linear form. The maximum sorption capacity achieved was 30.07 mg·g−1 in the case of Cd(II) ions, 99.44 mg·g−1 in the case of Pb(II) and 40.18 in the case of Zn(II). Biochar developed for this study is comparable to conventional biochar, low cost, non-toxic and experimental results show that is a suitable and efficient sorbent for Cd(II), Pb(II) and Zn(II) removal from aqueous solutions.

Biochar from Maize Hybrid Fermentation Residuelow Cost and Efficient Heavy Metals Sorbent

Department of Nanobiotechnology, Biology Centre

Ecological Chemistry and Engineering S

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

Biochar produced from fermentation residue of maize hybrid was used in untreated form as a sorbent for the removal of Cd(II), Pb(II) and Zn(II) from aqueous...

Biochar from Maize Hybrid Fermentation Residuelow Cost and Efficient Heavy Metals Sorbent

Published Online: Jan 21, 2020

Page range: 743 - 757

DOI: https://doi.org/10.1515/eces-2019-0052

Keywords
biochar, adsorption characteristic, kinetics, heavy metals, non-linear isotherm

© 2019 Michaela Tokarčíková et al., published by Sciendo

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

Biochar from Maize Hybrid Fermentation Residuelow Cost and Efficient Heavy Metals Sorbent

Published Online: Jan 21, 2020

Page range: 743 - 757

DOI: https://doi.org/10.1515/eces-2019-0052

Keywordsbiochar, adsorption characteristic, kinetics, heavy metals, non-linear isotherm

© 2019 Michaela Tokarčíková et al., published by Sciendo

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

Keywords
biochar, adsorption characteristic, kinetics, heavy metals, non-linear isotherm