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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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| Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
24/09/1993 |
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Data da última atualização: |
14/05/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
HUNGRIA, M. |
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Afiliação: |
MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Efeito das temperaturas elevadas na exsudacao de compostos fenolicos qua atuam como sinais moleculares na nodulacao da soja e do feijoeiro. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Revista Brasileira de Fisiologia Vegetal, Sao Carlos, v. 5, n. 1, p. 67, jun. 1993. |
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Idioma: |
Português |
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Notas: |
Resumo apresentado no IV Congresso Brasileiro de Fisiologia Vegetal, 1993, Fortaleza. |
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Palavras-Chave: |
Bean; Biological fixation; Brasil; Feijoeiro; Fixacao biologica; Soybean. |
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Thesagro: |
Feijão; Nitrogênio; Nodulação; Rhizobium; Soja. |
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Thesaurus NAL: |
Bradyrhizobium; Brazil; nitrogen; nodulation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 00934nam a2200289 a 4500
001 1444650
005 2024-05-14
008 1993 bl uuuu u00u1 u #d
100 1 $aHUNGRIA, M.
245 $aEfeito das temperaturas elevadas na exsudacao de compostos fenolicos qua atuam como sinais moleculares na nodulacao da soja e do feijoeiro.$h[electronic resource]
260 $aRevista Brasileira de Fisiologia Vegetal, Sao Carlos, v. 5, n. 1, p. 67, jun. 1993.$c1993
500 $aResumo apresentado no IV Congresso Brasileiro de Fisiologia Vegetal, 1993, Fortaleza.
650 $aBradyrhizobium
650 $aBrazil
650 $anitrogen
650 $anodulation
650 $aFeijão
650 $aNitrogênio
650 $aNodulação
650 $aRhizobium
650 $aSoja
653 $aBean
653 $aBiological fixation
653 $aBrasil
653 $aFeijoeiro
653 $aFixacao biologica
653 $aSoybean
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Embrapa Soja (CNPSO) |
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