Removal of Cu2+ ions from aqueous solutions using modified stalk of Ricinus communis L. in a batch and fixed bed column: Optimization using statistical design methods

Removal of Cu2+ ions from aqueous solutions using modified stalk of Ricinus communis L. in a batch and fixed bed column: Optimization using statistical design methods

MELO, D. Q.; OLIVEIRA, J. T.; TEIXEIRA, R. N. P.; SOUSA NETO, V. O.; NASCIMENTO, R. F.; VIDAL, C. B.; RAULINO, G. S. C.

Artigo:

This work investigates the ability of modified stalk of Ricinus communis L., an agricultural biomaterial, to remove Cu ions from aqueous solution in a batch and fixed-bed column. Batch biosorption experiments indicated that the aximum adsorption capacity calculated by Langmuir model (qmax) was 131.04 mg/g for for MMB. Three significant variables (bed height, flow and initial concentration) were selected for further optimization via response surface methodology (RSM) based on Box–Behnken model. A statistically quadratic model was constructed on basis of which the three-dimensional response surfaces were plotted.

This work investigates the ability of modified stalk of Ricinus communis L., an agricultural biomaterial, to remove Cu ions from aqueous solution in a batch and fixed-bed column. Batch biosorption experiments indicated that the aximum adsorption capacity calculated by Langmuir model (qmax) was 131.04 mg/g for for MMB. Three significant variables (bed height, flow and initial concentration) were selected for further optimization via response surface methodology (RSM) based on Box–Behnken model. A statistically quadratic model was constructed on basis of which the three-dimensional response surfaces were plotted.

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DOI: 10.5151/chemeng-cobeq2014-1262-20192-146966

Referências bibliográficas

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• [3] MELO, D. Q.; GOMES, E. C. C.; RAULINO, G. S. C.; LONGHINOTTI, E.; NASCIMENTO, R. F . Adsorption equilibria of Cu2+, Zn2+, and Cd2+ on EDTA-functionalized silica J. Chem. Eng. Data, 58; 798-806, 2013.
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• [6] SOUSA, F. W.; SILVA, M. J. B.; OLIVEIRA, I. R. N.; OLIVEIRA, A. G.; CAVALCANTE, R. M.; FECHINE, P. B. A.; SOUSA NETO, V. O.; DE KEUKELEIRE, D.; NASCIMENTO, R. F. Evaluation of a low-cost adsorbent for removal of toxic metal ions from wastewater of an electroplating factory J. Environ. Manage.89, 1-5.2009.
• [7] XIAO, G.; ZHANG, X.; SU, H.; TAN, T. Plate column biosorption of Cu(II) on membrane-type biosorbent (MBS) of Penicillium biomass: Optimization using statistical design methods Bioresource Technol, 143, 490–498, 2013.

Como citar:

MELO, D. Q.; OLIVEIRA, J. T.; TEIXEIRA, R. N. P.; SOUSA NETO, V. O. ; NASCIMENTO, R. F.; Carla Bastos; Giselle Santiago Cabral Raulino; "Removal of Cu2+ ions from aqueous solutions using modified stalk of Ricinus communis L. in a batch and fixed bed column: Optimization using statistical design methods", p-8424-8431. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-1262-20192-146966