Applicability of the Pinus bark (Pinus elliottii) for the adsorption of toxic heavy metals from aqueous solutions - doi: 10.4025/actascitechnol.v34i1.9585

Affonso Celso Gonçalves Junior; Leonardo Strey; Cleber Antonio Lindino; Herbert Nacke; Daniel Schwantes; Edleusa Pereira Seidel

doi:10.4025/actascitechnol.v34i1.9585

Applicability of the Pinus bark (Pinus elliottii) for the adsorption of toxic heavy metals from aqueous solutions - doi: 10.4025/actascitechnol.v34i1.9585

Authors

Affonso Celso Gonçalves Junior Universidade Estadual do Oeste do Paraná
Leonardo Strey Universidade Estadual do Oeste do Paraná
Cleber Antonio Lindino Universidade Estadual do Oeste do Paraná
Herbert Nacke Universidade Estadual do Oeste do Paraná
Daniel Schwantes Universidade Estadual do Oeste do Paraná
Edleusa Pereira Seidel Universidade Estadual do Oeste do Paraná

DOI:

https://doi.org/10.4025/actascitechnol.v34i1.9585

Keywords:

Adsorption, cadmium, lead, chromium

Abstract

Current research evaluates the efficaciousness of pine (Pinus elliottii) bark as adsorbent of the toxic heavy metals cadmium (Cd), lead (Pb) and chromium (Cr) from aqueous solutions, at two pH conditions: 5.0 and 7.0. Approximately 500 mg of adsorbent material and 50 mL of solution contaminated by Cd, Pb and Cr at different concentrations prepared from standard solutions of each metal were added in 125 mL Erlenmeyer flasks.Â Flasks were stirred during 3h at 200 rpm at 25ÂºC. Further, 10 mL aliquots were then retrieved and concentration of metal Cd, Pb and Cr determined by AAS. Adsorption isotherms for each metal were consequently obtained and linearized according to Langmuir and Freundlich´s mathematical models. Results show that the Pinus bark was efficacious in the removal of toxic heavy metals Cd, Pb and Cr from contaminated solutions and that the bark´s adsorption capacity depended on pH solution.

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Published

2011-07-08

How to Cite

Gonçalves Junior, A. C., Strey, L., Lindino, C. A., Nacke, H., Schwantes, D., & Seidel, E. P. (2011). Applicability of the Pinus bark (Pinus elliottii) for the adsorption of toxic heavy metals from aqueous solutions - doi: 10.4025/actascitechnol.v34i1.9585. Acta Scientiarum. Technology, 34(1), 79–87. https://doi.org/10.4025/actascitechnol.v34i1.9585

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Issue

Vol. 34 No. 1 (2012)

Section

Chemistry

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