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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
11/04/2006 |
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Data da última atualização: |
12/04/2007 |
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Autoria: |
NAIME, J. de M.; ASSIS, O. B. G. de; DIVINO, G.; VAZ, C. M. P.; SILVA, A. M. da. |
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Título: |
Analisador granulométrico automatizado aplicado na caracterização de pós de vidro processados por moagem. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
São Carlos: Embrapa Instrumentação Agropecuária, 1998. 5 p. |
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Série: |
(Embrapa Instrumentação Agropecuária. Comunicado Técnico, 27). |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho é a validação do analisador granulométrico na caracterização da evolução, em função do tempo, do tamanho de partículas de vidro obtidas por moagem. |
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Palavras-Chave: |
Analisador granulométrico; Análise de solos; Compostos inorgânicos; Raios gama. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPDIA/9713/1/CT27_98.pdf
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Marc: |
LEADER 00917nam a2200217 a 4500
001 1029787
005 2007-04-12
008 1998 bl uuuu u0uu1 u #d
100 1 $aNAIME, J. de M.
245 $aAnalisador granulométrico automatizado aplicado na caracterização de pós de vidro processados por moagem.
260 $aSão Carlos: Embrapa Instrumentação Agropecuária, 1998. 5 p.$c1998
490 $a(Embrapa Instrumentação Agropecuária. Comunicado Técnico, 27).
520 $aO objetivo deste trabalho é a validação do analisador granulométrico na caracterização da evolução, em função do tempo, do tamanho de partículas de vidro obtidas por moagem.
653 $aAnalisador granulométrico
653 $aAnálise de solos
653 $aCompostos inorgânicos
653 $aRaios gama
700 1 $aASSIS, O. B. G. de
700 1 $aDIVINO, G.
700 1 $aVAZ, C. M. P.
700 1 $aSILVA, A. M. da
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Solos. |
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Data corrente: |
30/11/2009 |
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Data da última atualização: |
02/06/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ALCANTARA, S. de; PEREZ, D. V.; ALMEIDA, M. R. A. de; SILVA, G. M. da; POLIDORO, J. C.; BETTIOL, W. |
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Afiliação: |
Instituto de Química - UFRJ; DANIEL VIDAL PEREZ, CNPS; Instituto de Química - UFRJ; Instituto de Química - UFRJ; JOSE CARLOS POLIDORO, CNPS; WAGNER BETTIOL, CNPMA. |
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Título: |
Chemical changes and heavy metal partitioning in an oxisol cultivated with maize (Zea mays, L.) after 5 years disposal of a domestic and an industrial sewage sludge. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Water, Air and Soil Pollution, v. 203, n. 1-4, p. 3-16, Oct. 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The need for solutions to minimize the negative environmental impacts of anthropogenic activities Fhas increased. Sewage sludge is composed of predominantly organic matter and can be used to improve soil characteristics, such as fertility. Therefore, its application in agriculture is an adequate alternative for its final disposal. However, there is a lack of information on its long-term effects on soil changes in tropical areas. Thus, the objectives of this study were to determine (i) the effect of sewage sludge application on heavy metal build-up in soil and maize grains and leaves, and (ii) the effects of soil amendment with sewage sludge on the chemical properties of a Brazilian oxisol. Besides the increasing levels of Zn, Cu, Ni, and Cr, amending soil with sewage sludge also alters the distribution of these metals by increasing the mobile Phases, which correlated significantly with the increase in metal extraction with two single extractants, Mehlich 1 and DTPA (Diethylene triamine pentaacetic acid). The levels of Fe, Mn, Zn, and Cu in maize grains and leaves increased with the type and rate of sewage sludge application. Nevertheless, metal build-up in soil and plants was within the allowed limits. Significant differences were also found in soil characteristics like humic fractionation with the applied sewage doses. The data obtained does not indicate any expressive drawbacks in the use of sewage sludge as a soil amendment, as the heavy metal concentrations observed are unlikely to cause any environmental or health problems, even overestimated loadings, and are in accordance with the Brazilian regulations on farming land biosolid disposal. MenosThe need for solutions to minimize the negative environmental impacts of anthropogenic activities Fhas increased. Sewage sludge is composed of predominantly organic matter and can be used to improve soil characteristics, such as fertility. Therefore, its application in agriculture is an adequate alternative for its final disposal. However, there is a lack of information on its long-term effects on soil changes in tropical areas. Thus, the objectives of this study were to determine (i) the effect of sewage sludge application on heavy metal build-up in soil and maize grains and leaves, and (ii) the effects of soil amendment with sewage sludge on the chemical properties of a Brazilian oxisol. Besides the increasing levels of Zn, Cu, Ni, and Cr, amending soil with sewage sludge also alters the distribution of these metals by increasing the mobile Phases, which correlated significantly with the increase in metal extraction with two single extractants, Mehlich 1 and DTPA (Diethylene triamine pentaacetic acid). The levels of Fe, Mn, Zn, and Cu in maize grains and leaves increased with the type and rate of sewage sludge application. Nevertheless, metal build-up in soil and plants was within the allowed limits. Significant differences were also found in soil characteristics like humic fractionation with the applied sewage doses. The data obtained does not indicate any expressive drawbacks in the use of sewage sludge as a soil amendment, as the heavy metal concentrations observed are ... Mostrar Tudo |
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Palavras-Chave: |
Acúmulo de metal; Lodo de esgoto; Substâncias húmicas. |
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Thesagro: |
Extração; Metal Pesado; Química do Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/143787/1/2009AP-15.pdf
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Marc: |
LEADER 02502naa a2200253 a 4500
001 1576685
005 2016-06-02
008 2009 bl uuuu u00u1 u #d
100 1 $aALCANTARA, S. de
245 $aChemical changes and heavy metal partitioning in an oxisol cultivated with maize (Zea mays, L.) after 5 years disposal of a domestic and an industrial sewage sludge.$h[electronic resource]
260 $c2009
520 $aThe need for solutions to minimize the negative environmental impacts of anthropogenic activities Fhas increased. Sewage sludge is composed of predominantly organic matter and can be used to improve soil characteristics, such as fertility. Therefore, its application in agriculture is an adequate alternative for its final disposal. However, there is a lack of information on its long-term effects on soil changes in tropical areas. Thus, the objectives of this study were to determine (i) the effect of sewage sludge application on heavy metal build-up in soil and maize grains and leaves, and (ii) the effects of soil amendment with sewage sludge on the chemical properties of a Brazilian oxisol. Besides the increasing levels of Zn, Cu, Ni, and Cr, amending soil with sewage sludge also alters the distribution of these metals by increasing the mobile Phases, which correlated significantly with the increase in metal extraction with two single extractants, Mehlich 1 and DTPA (Diethylene triamine pentaacetic acid). The levels of Fe, Mn, Zn, and Cu in maize grains and leaves increased with the type and rate of sewage sludge application. Nevertheless, metal build-up in soil and plants was within the allowed limits. Significant differences were also found in soil characteristics like humic fractionation with the applied sewage doses. The data obtained does not indicate any expressive drawbacks in the use of sewage sludge as a soil amendment, as the heavy metal concentrations observed are unlikely to cause any environmental or health problems, even overestimated loadings, and are in accordance with the Brazilian regulations on farming land biosolid disposal.
650 $aExtração
650 $aMetal Pesado
650 $aQuímica do Solo
653 $aAcúmulo de metal
653 $aLodo de esgoto
653 $aSubstâncias húmicas
700 1 $aPEREZ, D. V.
700 1 $aALMEIDA, M. R. A. de
700 1 $aSILVA, G. M. da
700 1 $aPOLIDORO, J. C.
700 1 $aBETTIOL, W.
773 $tWater, Air and Soil Pollution$gv. 203, n. 1-4, p. 3-16, Oct. 2009.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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