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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
27/03/2012 |
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Data da última atualização: |
11/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVEIRA NETA, J. de J. da; MOREIRA, G. C.; SILVA, C. J. da; REIS, C.; REIS, E. L. |
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Afiliação: |
JULIETA DE JESUS DA SILVEIRA NETA, CPATU; GUILHERME COSTA MOREIRA, UFV; CARLOS JULIANO DA SILVA, UFV; CÉSAR REIS, UFV; EFRAIM LÁZARO REIS, UFV. |
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Título: |
Use of polyurethane foams for the removal of the Direct Red 80 and Reactive Blue 21 dyes in aqueous medium. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Desalination, v. 281, p. 55-60, Oct. 2011. |
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DOI: |
10.1016/j.desal.2011.07.041 |
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Idioma: |
Inglês |
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Conteúdo: |
The use of polyurethane foam (PUF) as an alternative adsorbent was investigated with the objective of removing Direct Red 80 (DR80) and Reactive Blue 21 (RB21) dyes from aqueous solutions. The adsorption isotherms were obtained in batches using the Langmuir model, which accurately described the sorptive behavior of the system with a correlation coefficient of R2N0.98. The maximum adsorption capacities of PUF for DR80 and RB21 dyes were 4.50 and 8.31 mg g−1, respectively. The static studies were conducted in a glass column with an internal volume of 11.40 cm3 that was filled with 1 g of foam. Univariate experiments were conducted to investigate the influence of 2.5, 7.5, 12.5 and 17.5 mL min−1 flow and the influence of dye concentrations on the interval between 10 to 60 mg L−1 in the foam adsorption process. With dye concentrations maintained at 30 mg L−1, a 22 central composite design (CCD) was applied whose variables of interest were pH and flow. The best experimental conditions for the adsorption of each dye were established after data processing and surface response analysis. It was observed that under optimized experimental conditions the removal of the studied dyes was over 80%. |
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Thesagro: |
Absorção; Água; Corante; Poluição. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01900naa a2200229 a 4500
001 1920572
005 2022-11-11
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1016/j.desal.2011.07.041$2DOI
100 1 $aSILVEIRA NETA, J. de J. da
245 $aUse of polyurethane foams for the removal of the Direct Red 80 and Reactive Blue 21 dyes in aqueous medium.$h[electronic resource]
260 $c2011
520 $aThe use of polyurethane foam (PUF) as an alternative adsorbent was investigated with the objective of removing Direct Red 80 (DR80) and Reactive Blue 21 (RB21) dyes from aqueous solutions. The adsorption isotherms were obtained in batches using the Langmuir model, which accurately described the sorptive behavior of the system with a correlation coefficient of R2N0.98. The maximum adsorption capacities of PUF for DR80 and RB21 dyes were 4.50 and 8.31 mg g−1, respectively. The static studies were conducted in a glass column with an internal volume of 11.40 cm3 that was filled with 1 g of foam. Univariate experiments were conducted to investigate the influence of 2.5, 7.5, 12.5 and 17.5 mL min−1 flow and the influence of dye concentrations on the interval between 10 to 60 mg L−1 in the foam adsorption process. With dye concentrations maintained at 30 mg L−1, a 22 central composite design (CCD) was applied whose variables of interest were pH and flow. The best experimental conditions for the adsorption of each dye were established after data processing and surface response analysis. It was observed that under optimized experimental conditions the removal of the studied dyes was over 80%.
650 $aAbsorção
650 $aÁgua
650 $aCorante
650 $aPoluição
700 1 $aMOREIRA, G. C.
700 1 $aSILVA, C. J. da
700 1 $aREIS, C.
700 1 $aREIS, E. L.
773 $tDesalination$gv. 281, p. 55-60, Oct. 2011.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 14 | |
| 2. |  | SPRICIGO, P. C.; CORREA, D. S.; FERREIRA, M. D.; BRECHT, J. K. Preliminary evaluation of physiological changes in tomatoes with mechanical damage related to development of postharvest technologies. In: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 1.; SIMPÓSIO BRASILEIRO DE PÓS-COLHEITA, FRUTAS, HORTALIÇAS E FLORES, 5.; ENCONTRO NACIONAL SOBRE PROCESSAMENTO MÍNIMO DE FRUTAS E HORTALIÇAS, 8., 2015, Aracaju, SE. Anais... Aracaju, SE: CBPMPC, 2015. Não paginado. 7 f.| Tipo: Artigo em Anais de Congresso |
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| 4. | | FERREIRA, M. D.; SARGENT, S. A.; BRECHT, J. K.; CHANDLER, C. K. Strawberry bruising sensitivity depends on the type of force applied, cooling method, and pulp temperature. Hortscience, Alexandria, v. 44, n. 7, p. 1953-1956, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
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| 9. | | SPRICIGO, P. C.; FREITAS, T. P.; PURGATTO, E.; FERREIRA, M. D.; CORREA, D. S.; BAI, J.; BRECHT, J. K. Visually imperceptible mechanical damage of harvested tomatoes changes ethylene production, color, enzyme activity, and volatile compounds profile. Postharvest Biology and Technology, v. 176, a. 111503, 2021. 1 - 9| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 10. | | CHANG, Y.; FERREIRA, M. D.; CORREA, D. S.; TEODORO, K. B. R.; PROCOPIO, F. R.; BREXÓ, R. P.; SARKHOSH, A.; BRECHT, J. Advances in postharvest nanotechnology: Enhancing fresh produce shelf life and quality to reduce losses and waste. Postharvest Biology and Technology, v. 222, 113397, 2025. 25 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 11. | | MONTEIRO, S. R. S.; MELLO JÚNIOR, N. R. C. de; FUKUI, C. M.; SANTOS, L. F. dos; BRECHT, J. F.; SARGENT, S. A.; FREITAS, S. T. de. Modified atmosphere conditions to export ‘Palmer’ mangos at advanced maturity. In: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS-COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 3., 2024, Piracicaba. Anais... Piracicaba: ESALQ/USP, 2024. Resumo 212.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 12. | | BRECHT, J. K.; SARGENT, S. A.; MITCHAM, E. J.; KADER, A. A.; ARPAIA, M. L.; YAHIA, E. M.; MAUL, F.; LIMA, M. A. C. de; BRECHT, P. E.; MENOCAL, O. A.; PADDA, M. Monitoring and evaluation of the mango supply chain to improve mango quality. In: ANNUAL CONFERENCE OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE, 2009, Saint Louis. Abstracts... Alexandria: American Society for Horticultural Science, 2009.| Tipo: Resumo em Anais de Congresso |
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| 13. | | MELLO JÚNIOR, N. R. C. de; PIRES, B. P. de C.; ALVES, J. S.; REGIS, E. S.; SANTOS, L. F. dos; BRECHT, J. K.; SARGENT, S. A.; FREITAS, S. T. de. Modified atmosphere conditions to export ‘Ataulfo’ mangos at advanced maturity. In: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS-COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 3., 2024, Piracicaba. Anais... Piracicaba: ESALQ/USP, 2024. Resumo 210.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 14. | | MELLO JÚNIOR, N. R. C.; MONTEIRO, S. R. S.; SOUZA, T. A. de; FUKUI, C. M.; SANTOS, L. F. dos; BRECHT, J. K.; SARGENT, S. A.; FREITAS, S. T. de. Modified atmosphere conditions to export ‘Keitt’ mangos at advanced maturity. In: CONGRESSO BRASILEIRO DE PROCESSAMENTO MÍNIMO E PÓS-COLHEITA DE FRUTAS, FLORES E HORTALIÇAS, 3., 2024, Piracicaba. Anais... Piracicaba: ESALQ/USP, 2024. Resumo 211.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 14 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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