Use of fractional factorial design for optimizing removal of nickel, copper, cadmium and lead by buriti modified fibers.

Melo, Diego de Quadros; Vidal, Carla Bastos; Raulino, Giselle Santiago Cabral; Oliveira, Juliene Tomé; Teixeira, Raimundo Nonato Pereira; Nascimento, Ronaldo Ferreira do

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Campo DC	Valor	Idioma
dc.contributor.author	Melo, Diego de Quadros	-
dc.contributor.author	Vidal, Carla Bastos	-
dc.contributor.author	Raulino, Giselle Santiago Cabral	-
dc.contributor.author	Oliveira, Juliene Tomé	-
dc.contributor.author	Teixeira, Raimundo Nonato Pereira	-
dc.contributor.author	Nascimento, Ronaldo Ferreira do	-
dc.date.accessioned	2020-09-18T20:16:15Z	-
dc.date.available	2020-09-18T20:16:15Z	-
dc.date.issued	2014	-
dc.identifier.citation	MELO, Diego; VIDAL, Carla; RAULINO, Giselle Santiago Cabral; OLIVEIRA, Juliene Tomé; TEIXEIRA, Raimundo Nonato Pereira; NASCIMENTO, Ronaldo Ferreira do. Use of fractional factorial design for optimizing removal of nickel, copper, cadmium and lead by buriti modified fibers. In: ANAIS DO CONGRESSO BRASILEIRO DE ENGENHARIA QUIMICA, XX., 19 a 22 out. 2014, Florianópolis (SC) – Brasil. Anais eletrônicos [...] Campinas, Galoá, 2014.	pt_BR
dc.identifier.issn	21785600	-
dc.identifier.uri	http://www.repositorio.ufc.br/handle/riufc/54136	-
dc.language.iso	pt_BR	pt_BR
dc.subject	Adsorption	pt_BR
dc.subject	Metal Ions	pt_BR
dc.subject	Fractional Factorial Desigh	pt_BR
dc.title	Use of fractional factorial design for optimizing removal of nickel, copper, cadmium and lead by buriti modified fibers.	pt_BR
dc.type	Artigo de Evento	pt_BR
dc.description.abstract-ptbr	The adsorption of copper, cadmium, lead and nickel in mono-element and multi-element aqueous solutions onto buriti modified fibers was studied. The fractional factorial design 24-1 showed that pH, adsorbent mass, agitation rate and initial metal concentration influenced each metal adsorption differently. The kinetics and thermodynamic equilibrium parameters were obtained for all elements. The results showed that the order of mono-element adsorption for these three contaminants is Ni> Cd> Pb> Cu. The adsorption kinetics were fitted to the pseudo-second order model, giving linear correlation coefficients higher than 0.98. The Langmuir isotherm provided the best fit with the monoelement experimental data. In this study, the multi-element system isotherms were also obtained and a significant difference was found in the competitiveness for the site and the adsorption capacity order was Ni> Cu> Cd> Pb.	pt_BR
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