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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
14/01/2010 |
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Data da última atualização: |
21/01/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
PRATA, D. A. T.; CUENCA, M. A. G.; GABRIEL, T. dos S.; SANTOS, R. F. |
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Afiliação: |
DIEGO ASCENDINO TOURINHO PRATA, UFS; MANUEL ALBERTO GUTIERREZ CUENCA, CPATC; THIAGO DOS SANTOS GABRIEL, UFS; ROSALVO FERREIRA SANTOS, UFS. |
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Título: |
Análise da tendência histórica de preços recebidos pelos produtores de coco em Alagoas e sua participação percentual na variação do valor bruto da produção estadual. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: FEIRA INTERNACIONAL DE FRUTICULTURA TROPICAL - EXPOFRUIT, 2009, Mossoró. Resumos...Mossoró: COEX, 2009. 1 CD-ROM. |
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Descrição Física: |
Resumo em anais. |
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Idioma: |
Português |
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Palavras-Chave: |
Coco, Alagoas. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00664naa a2200169 a 4500
001 1580372
005 2010-01-21
008 2009 bl uuuu u00u1 u #d
100 1 $aPRATA, D. A. T.
245 $aAnálise da tendência histórica de preços recebidos pelos produtores de coco em Alagoas e sua participação percentual na variação do valor bruto da produção estadual.
260 $c2009
300 $cResumo em anais.
653 $aCoco, Alagoas
700 1 $aCUENCA, M. A. G.
700 1 $aGABRIEL, T. dos S.
700 1 $aSANTOS, R. F.
773 $tIn: FEIRA INTERNACIONAL DE FRUTICULTURA TROPICAL - EXPOFRUIT, 2009, Mossoró. Resumos...Mossoró: COEX, 2009. 1 CD-ROM.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
01/07/2010 |
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Data da última atualização: |
18/05/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SOARES, F. S. C.; BERNARDI, A. C. de C.; CARAPELLI, R.; BOSSU, C. M.; ALONSO, J.; NOGUEIRA, A. R. de A. |
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Afiliação: |
UFSCar- SÃO CARLOS, SP; ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; RODOLFO CARAPELLI, UFSCar- SÃO CARLOS, SP; UFSCar - SÃO CARLOS, SP; UNIVERSIDAD DE BARCELONA - ESPANHA; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
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Título: |
Kinetics of adsorption of Cd, Co, Cr, Cu, K, Ni and Zn in aqueous solutions using natural zeolite integrated to LTCC technology. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES, 2010, São pedro, São Pedro: Aptor Software, 2010. |
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Páginas: |
P. 178 |
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Idioma: |
Português |
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Conteúdo: |
The LTCC technology (Low Temperature Co-fired Ceramics) has become much more versatile than any technique applied so far in the field of miniaturization, since allowing the construction of threedimensional devices quickly and easily. Due to the ease of handling, the green ceramic provide the multilayer arrangement of modules with different applications, such as, among others, in the field of microelectronics and manufacturing microvalves and microfluidic systems applied in flow injection systems. Natural materials, available in large quantities and that can be used as low cost adsorbents for wastewater treatment have been the target of numerous studies. As an example, chitosan, zeolites, natural sponges and activated carbon are used successfully for this purpose. Zeolites are natural or synthetic minerals, with a wide variety of technological applications. Its structure has channels and cavities in which it is possible to settle ions, water molecules or other adsorbates and salts. This study aimed to investigate the removal capacity of Cd, Cr, Cu, K, Ni and Zn by a sample of natural zeolite ceramic integrated devices through the LTCC technology. Ceramic systems with 2.6 cm long and 1.7 cm wide were constructed with natural zeolite integrated inside. The experimental parameters were optimized employing 10 mL of a 5 mg L-1 containing Cd, Co, Cr, Cu, K, Ni and Zn. The influence of pH and time on adsorption of metals by natural zeolite was evaluated. After the adsorption step solutions were analyzed by optical emission spectroscopy with inductively coupled plasma (ICP OES) for the analytes determination. The results showed that the determining factor in the adsorption capacity of natural zeolite is the pH of the solution. In the pH range of 6 up to 7 the competition adsorption of analytes was not observed. Values above 88% of adsorption were obtained for all metal ions studied. The kinetic study indicated that equilibrium was reached in approximately 2 hours of contact between the solution and natural zeolite. The results demonstrated the viability in the adsorption of Cd, Co, Cr, Cu, K, Ni and Zn in natural zeolite integrated ceramic systems, and the pH factor in optimizing the adsorption capacity of zeolite. MenosThe LTCC technology (Low Temperature Co-fired Ceramics) has become much more versatile than any technique applied so far in the field of miniaturization, since allowing the construction of threedimensional devices quickly and easily. Due to the ease of handling, the green ceramic provide the multilayer arrangement of modules with different applications, such as, among others, in the field of microelectronics and manufacturing microvalves and microfluidic systems applied in flow injection systems. Natural materials, available in large quantities and that can be used as low cost adsorbents for wastewater treatment have been the target of numerous studies. As an example, chitosan, zeolites, natural sponges and activated carbon are used successfully for this purpose. Zeolites are natural or synthetic minerals, with a wide variety of technological applications. Its structure has channels and cavities in which it is possible to settle ions, water molecules or other adsorbates and salts. This study aimed to investigate the removal capacity of Cd, Cr, Cu, K, Ni and Zn by a sample of natural zeolite ceramic integrated devices through the LTCC technology. Ceramic systems with 2.6 cm long and 1.7 cm wide were constructed with natural zeolite integrated inside. The experimental parameters were optimized employing 10 mL of a 5 mg L-1 containing Cd, Co, Cr, Cu, K, Ni and Zn. The influence of pH and time on adsorption of metals by natural zeolite was evaluated. After the adsorption step so... Mostrar Tudo |
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Palavras-Chave: |
Cinética de absorção; LTCC Tecnologia; Zeolita. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/37811/1/PROCI-2010.00008.pdf
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Marc: |
LEADER 03020nam a2200217 a 4500
001 1856556
005 2021-05-18
008 2010 bl uuuu u00u1 u #d
100 1 $aSOARES, F. S. C.
245 $aKinetics of adsorption of Cd, Co, Cr, Cu, K, Ni and Zn in aqueous solutions using natural zeolite integrated to LTCC technology.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES, 2010, São pedro, São Pedro: Aptor Software$c2010
300 $aP. 178
520 $aThe LTCC technology (Low Temperature Co-fired Ceramics) has become much more versatile than any technique applied so far in the field of miniaturization, since allowing the construction of threedimensional devices quickly and easily. Due to the ease of handling, the green ceramic provide the multilayer arrangement of modules with different applications, such as, among others, in the field of microelectronics and manufacturing microvalves and microfluidic systems applied in flow injection systems. Natural materials, available in large quantities and that can be used as low cost adsorbents for wastewater treatment have been the target of numerous studies. As an example, chitosan, zeolites, natural sponges and activated carbon are used successfully for this purpose. Zeolites are natural or synthetic minerals, with a wide variety of technological applications. Its structure has channels and cavities in which it is possible to settle ions, water molecules or other adsorbates and salts. This study aimed to investigate the removal capacity of Cd, Cr, Cu, K, Ni and Zn by a sample of natural zeolite ceramic integrated devices through the LTCC technology. Ceramic systems with 2.6 cm long and 1.7 cm wide were constructed with natural zeolite integrated inside. The experimental parameters were optimized employing 10 mL of a 5 mg L-1 containing Cd, Co, Cr, Cu, K, Ni and Zn. The influence of pH and time on adsorption of metals by natural zeolite was evaluated. After the adsorption step solutions were analyzed by optical emission spectroscopy with inductively coupled plasma (ICP OES) for the analytes determination. The results showed that the determining factor in the adsorption capacity of natural zeolite is the pH of the solution. In the pH range of 6 up to 7 the competition adsorption of analytes was not observed. Values above 88% of adsorption were obtained for all metal ions studied. The kinetic study indicated that equilibrium was reached in approximately 2 hours of contact between the solution and natural zeolite. The results demonstrated the viability in the adsorption of Cd, Co, Cr, Cu, K, Ni and Zn in natural zeolite integrated ceramic systems, and the pH factor in optimizing the adsorption capacity of zeolite.
653 $aCinética de absorção
653 $aLTCC Tecnologia
653 $aZeolita
700 1 $aBERNARDI, A. C. de C.
700 1 $aCARAPELLI, R.
700 1 $aBOSSU, C. M.
700 1 $aALONSO, J.
700 1 $aNOGUEIRA, A. R. de A.
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Embrapa Pecuária Sudeste (CPPSE) |
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