Biosorption of Cu (II) and Zn (II) with açaí endocarp Euterpe oleracea M. in contaminated aqueous solution

Affonso Celso Gonçalves Junior; Gustavo Ferreira Coelho; Daniel Schwantes; Angela Laufer Rech; Marcelo Ângelo Campagnolo; Alisson Junior Miola

doi:10.4025/actascitechnol.v38i3.28294

Biosorption of Cu (II) and Zn (II) with açaí endocarp Euterpe oleracea M. in contaminated aqueous solution

Affonso Celso Gonçalves Junior Universidade Estadual do Oeste do Paraná
Gustavo Ferreira Coelho Centro Universitário Dinâmica das Cataratas
Daniel Schwantes Pontifícia Universidade Católica do Paraná
Angela Laufer Rech Universidade Estadual do Oeste do Paraná
Marcelo Ângelo Campagnolo Universidade Estadual do Oeste do Paraná
Alisson Junior Miola Universidade Estadual do Oeste do Paraná

DOI: https://doi.org/10.4025/actascitechnol.v38i3.28294

Keywords: adsorption process, kinetic parameters, isotherms, thermodynamic parameters

Abstract

Current analysis investigates the capacity of the açaí endocarp (Euterpe oleracea M.) as a biosorbent for the removal of Cu²⁺ and Zn²⁺ in monoelementary water solutions. The best conditions for the ion adsorption process were pH of the solution at 4.0; 8 g L^-1 of the biosorbent mass per volume of solution; best equilibrium time at 60 min. The application of kinetic models suggests that chemosorption may be the main limiting stage for metal ion adsorption. In the case of adsorption isotherms, Langmuir´s model had the best adjustment for biosorption and indicated adsorption in monolayers. A strong interaction of metals with the surface of the adsorbent was indicated due to low elution rates. Thermodynamic parameters showed that the biosorption process was spontaneous and endothermal. Results demonstrated that the use of the açaí endocarp as biosorbent is an alternative for the remediation of Cu²⁺ and Zn²⁺contaminated waters since it is a natural, low-cost and highly available material.

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Published

2016-06-22

How to Cite

Gonçalves Junior, A. C., Coelho, G. F., Schwantes, D., Rech, A. L., Campagnolo, M. Ângelo, & Miola, A. J. (2016). Biosorption of Cu (II) and Zn (II) with açaí endocarp Euterpe oleracea M. in contaminated aqueous solution. Acta Scientiarum. Technology, 38(3), 361-370. https://doi.org/10.4025/actascitechnol.v38i3.28294

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Issue

Vol 38 No 3 (2016)

Section

Chemistry

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