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

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

Open Access
|Jan 2020

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.

DOI: https://doi.org/10.1515/eces-2019-0052 | Journal eISSN: 2084-4549 | Journal ISSN: 1898-6196
Language: English
Page range: 743 - 757
Published on: Jan 21, 2020
Published by: Society of Ecological Chemistry and Engineering
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2020 Michaela Tokarčíková, Jana Seidlerová, Oldřich Motyka, Mirka Šafaříková, published by Society of Ecological Chemistry and Engineering
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.