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http://repositorio.ufc.br/handle/riufc/54136| Tipo: | Artigo de Evento |
| Título: | Use of fractional factorial design for optimizing removal of nickel, copper, cadmium and lead by buriti modified fibers. |
| Autor(es): | Melo, Diego de Quadros Vidal, Carla Bastos Raulino, Giselle Santiago Cabral Oliveira, Juliene Tomé Teixeira, Raimundo Nonato Pereira Nascimento, Ronaldo Ferreira do |
| Palavras-chave: | Adsorption;Metal Ions;Fractional Factorial Desigh |
| Data do documento: | 2014 |
| Citação: | 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. |
| Resumo: | 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. |
| URI: | http://www.repositorio.ufc.br/handle/riufc/54136 |
| ISSN: | 21785600 |
| Aparece nas coleções: | DEQ - Trabalhos apresentados em eventos |
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| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| 2014_eve_dqmelo1.pdf | 101,44 kB | Adobe PDF | Visualizar/Abrir |
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