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| Registros recuperados : 3 | |
| 1. |  | BORGES, J. S.; NEVES, J. C. L.; LOURENÇO, H. M.; BARROS, N. F. de; DIAS, S. C. M. Parameterization of the 3-PG model for eucalypt in the Region of Cerrado in Minas Gerais State. Ciência Florestal, Santa Maria, RS, v. 22, n. 3, p. 567-578, jul./set. 2012.| Biblioteca(s): Embrapa Florestas. |
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| 2. | | SOARES, A. A. V.; LEITE, H. G.; SOUZA, A. L.; SILVA, S. R.; LOURENÇO, H. M.; FORRESTER, D. I. Increasing stand structural heterogeneity reduces productivity in Brazilian Eucalyptus monoclonal stands. Forest Ecology and Management, Amsterdam, v. 373, p. 26-32, Aug. 2016.| Biblioteca(s): Embrapa Trigo. |
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| 3. | | SOARES, P. C.; CORNÉLIO, V. M. O.; SOARES, A. A.; REIS, M. S.; RANGEL, P. H. N.; ROCHA, D. G. B.; LOURENÇO, H. M. Avaliação preliminar de linhagens de arroz de várzeas em Minas Gerais. Ano agrícola 2001/2002. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 3.; REUNIÃO DA CULTURA DO ARROZ IRRIGADO, 25., 2003, Balneário Camboriú. Anais... Balneário Camboriú: EPAGRI, 2003.. p. 70-72.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 3 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
11/03/2010 |
|
Data da última atualização: |
13/09/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 3 |
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Autoria: |
FARIAS, W. M.; MARTINS, E. de S.; PASTORE, E. L.; MACHADO, P. F. L.; RESCK, I. S. |
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Afiliação: |
WISLEY MOREIRA FARIAS, UnB; EDER DE SOUZA MARTINS, CPAC; ERALDO LUPORINI PASTORE, UnB; PATRÍCIA F. LOOTENS MACHADO, UnB; INÊS SABIONI RESCK, UnB. |
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Título: |
Benzene concentration in the phases of tropical soils. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Soil and Rocks, São Paulo, v. 32, n. 3, p. 135-140, sep./dec., 2009. |
|
Idioma: |
Inglês |
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Conteúdo: |
This work evaluates tropical soil adorption capacity of a hydrophobic compound (benzene). With such purpose, a lateritic soil poor in organic matter and a hydromorphic soil rich in kaolinite with a higher organic content were studied. The lateritic soil, rich in Al and Fe oxides, presented a higher sorption capacity in grain size terms for having a higher clay fraction which consequently favored a greater surface contact area, and in mineralogical terms for containing micro-aggregates of Al and Fe oxides, which may confine hydrofobic compounds. This study also compared the lateritic soil retardation factor with Batch Test sorption data. It is shoen that the retardation factor for benzene may overestimate the concentration of the adsorbed phase, and thus underestimates the concentration in the effective dissolved phase. Also, a simplified model is presented to calculate benzene concentration in the various phases (free, dissolved and adsorbed) and in the pore-fluid of a lateritic soil in a saturated environment. |
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Palavras-Chave: |
Benzeno. |
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Thesagro: |
Adsorção; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01573naa a2200205 a 4500
001 1660875
005 2010-09-13
008 2009 bl --- 0-- u #d
100 1 $aFARIAS, W. M.
245 $aBenzene concentration in the phases of tropical soils.
260 $c2009
520 $aThis work evaluates tropical soil adorption capacity of a hydrophobic compound (benzene). With such purpose, a lateritic soil poor in organic matter and a hydromorphic soil rich in kaolinite with a higher organic content were studied. The lateritic soil, rich in Al and Fe oxides, presented a higher sorption capacity in grain size terms for having a higher clay fraction which consequently favored a greater surface contact area, and in mineralogical terms for containing micro-aggregates of Al and Fe oxides, which may confine hydrofobic compounds. This study also compared the lateritic soil retardation factor with Batch Test sorption data. It is shoen that the retardation factor for benzene may overestimate the concentration of the adsorbed phase, and thus underestimates the concentration in the effective dissolved phase. Also, a simplified model is presented to calculate benzene concentration in the various phases (free, dissolved and adsorbed) and in the pore-fluid of a lateritic soil in a saturated environment.
650 $aAdsorção
650 $aSolo
653 $aBenzeno
700 1 $aMARTINS, E. de S.
700 1 $aPASTORE, E. L.
700 1 $aMACHADO, P. F. L.
700 1 $aRESCK, I. S.
773 $tSoil and Rocks, São Paulo$gv. 32, n. 3, p. 135-140, sep./dec., 2009.
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