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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
04/10/2010 |
Data da última atualização: |
30/06/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GROMBONI, C. F.; DONATI, G. L; MATOS, W. O.; NEVES, E. F. A.; NOGUEIRA, A. R. de A.; NOBREGA, J. A. |
Afiliação: |
CAIO F. GROMBONI, UFSCar/SÃO CARLOS, SP; GEORGE L. DONATI, UFSCar/SÃO CARLOS, SP; WLADIANA O. MATOS, UFSCar/SÃO CARLOS, SP; EDUARDO F. A. NEVES, UFSCar/SÃO CARLOS, SP; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, UFSCar, SÃO CARLOS, SP. |
Título: |
Evaluatin of metabisulfite and a commercial stee wool for removing chromium (VI) from wastewater. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Enviromental Chemistry Letter, v. 8, p.73-77, 2010. |
DOI: |
11110.1007/s0311-008-0194-6 |
Idioma: |
Português |
Conteúdo: |
Efficiency of metabisulfite and a commercial steel wool as reducing agents in the removal of Cr(VI) from wastewaters was evaluated. Chromium( VI) was converted to Cr(III), precipitated with NaOH, and removed by filtration. A reduction of more than 1.0 x 10(5) and 4.0 x 10(5) fold in total Cr and the Cr(VI) concentrations, respectively, was observed by employing steel wool masses as low as 0.4420 g to 30-mL solutions of wastewater. Chromium(III) hydroxide obtained after the treatment was recycled and used as marker in cattle nutrition studies. The liquid residue obtained after the treatment was reused as precipitation agent replacing NaOH. |
Palavras-Chave: |
Metabisulfite; Steel wood. |
Thesaurus Nal: |
wastewater treatment. |
Categoria do assunto: |
W Química e Física |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/28784/1/ana2010.pdf
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Marc: |
LEADER 01345naa a2200229 a 4500 001 1863457 005 2023-06-30 008 2010 bl uuuu u00u1 u #d 024 7 $a11110.1007/s0311-008-0194-6$2DOI 100 1 $aGROMBONI, C. F. 245 $aEvaluatin of metabisulfite and a commercial stee wool for removing chromium (VI) from wastewater.$h[electronic resource] 260 $c2010 520 $aEfficiency of metabisulfite and a commercial steel wool as reducing agents in the removal of Cr(VI) from wastewaters was evaluated. Chromium( VI) was converted to Cr(III), precipitated with NaOH, and removed by filtration. A reduction of more than 1.0 x 10(5) and 4.0 x 10(5) fold in total Cr and the Cr(VI) concentrations, respectively, was observed by employing steel wool masses as low as 0.4420 g to 30-mL solutions of wastewater. Chromium(III) hydroxide obtained after the treatment was recycled and used as marker in cattle nutrition studies. The liquid residue obtained after the treatment was reused as precipitation agent replacing NaOH. 650 $awastewater treatment 653 $aMetabisulfite 653 $aSteel wood 700 1 $aDONATI, G. L 700 1 $aMATOS, W. O. 700 1 $aNEVES, E. F. A. 700 1 $aNOGUEIRA, A. R. de A. 700 1 $aNOBREGA, J. A. 773 $tEnviromental Chemistry Letter$gv. 8, p.73-77, 2010.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
01/02/2024 |
Data da última atualização: |
01/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
CALIXTO JÚNIOR, J. T.; MOURA, J. C. de; LISBOA, M. A. N.; CRUZ, G. V.; GONÇALVES, B. L. M.; BARRETO, E. S. de S. T.; BARROS, L. M.; DRUMOND, M. A.; MENDONÇA, A. C. A. M.; ROCHA, L. S. G.; SILVA, M. A. P. da; CORDEIRO, L. S. |
Afiliação: |
JOÃO TAVARES CALIXTO JÚNIOR, Universidade Regional do Cariri – URCA, Crato, CE; JOSÉ CÍCERO DE MOURA, Universidade Regional do Cariri – URCA, Crato, CE; MARIA AMANDA NOBRE LISBOA, Universidade Regional do Cariri – URCA, Crato, CE; GABRIEL VENÂNCIO CRUZ, Universidade Regional do Cariri – URCA, Crato, CE; BRENDA LUANA MUNIZ GONÇALVES, Universidade Regional do Cariri – URCA, Crato, CE; EDUARDO SAMPAIO DE SOUSA TAVARES BARRETO, Universidade Regional do Cariri – URCA, Crato, CE; LUIZ MARIVANDO BARROS, Universidade Regional do Cariri – URCA, Crato, CE; MARCOS ANTONIO DRUMOND, CPATSA; ANA CLEIDE ALCÂNTARA MORAIS MENDONÇA, Universidade Regional do Cariri – URCA, Crato, CE; LEONARDO SILVESTRE GOMES ROCHA, Universidade Federal Rural do Rio de Janeiro; MARIA ARLENE PESSOA DA SILVA, Universidade Regional do Cariri – URCA, Crato, CE; LUCIANA SILVA CORDEIRO, Universidade Regional do Cariri – URCA, Crato, CE. |
Título: |
Phytosociology, diversity and floristic similarity of a Cerrado fragment on Southern Ceará state, Brazilian Semiarid. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Scientia Forestalis, v. 49, n. 130, e3459, 2021. |
DOI: |
https://doi.org/10.18671/scifor.v49n130.01 |
Idioma: |
Inglês |
Conteúdo: |
There is a lack of studies on phytosociology of Cerrado fragments within the Caatinga biome, located in the Southern region of Ceará State, associated to the Brazilian Crystalline Shield geological formation. Thus, contributing to the diagnosis and knowledge of this plant community, a survey on the general flora and especially the structure of arboreal vegetation was made. Every individual with SND ≥ 3cm (total height), within 12 parcels with 12x30 m (0.432 ha) of area was sampled. The floristic similarity was calculated by the Jaccard index, in comparison with ten other Brazilian Cerrado areas. Fourty-six species distributed in 22 families were found, comprising a total of 906 individuals, with AD=2,097.22 ind.ha-1. The highest abundance was found within families Fabaceae (20.31%) and Vochysiaceae (19.98%). Qualea parviflora, Annona leptopetala, Hymenaea stignocarpa and Callisthene fasciculata had the highest IVI index species. The calculated biodiversity indexes were: alpha diversity of Shannon (H’) = 3.8 and equitability of Pielou (J’) = 0.83. The results obtained show the area as a vegetation relict, under threat due to the penetration of Caatinga species, climatic changes, insufficient conservation efforts and fast anthropic deforestation. As a result, this relict area tends to shrink to a fragment much smaller than it was in the past. |
Palavras-Chave: |
Lavras da Mangabeira; Manchas de Cerrado; Serra do Boqueirão; Vegetação arbórea. |
Thesagro: |
Caatinga; Flora; Vegetação. |
Thesaurus NAL: |
Phytosociology. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1161540/1/Phytosociology-diversity-and-floristic-similarity-of-a-Cerrado-fragment-on-Southern-Ceara-state-Brazilian-Semiarid-2021.pdf
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Marc: |
LEADER 02475naa a2200361 a 4500 001 2161540 005 2024-02-01 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.18671/scifor.v49n130.01$2DOI 100 1 $aCALIXTO JÚNIOR, J. T. 245 $aPhytosociology, diversity and floristic similarity of a Cerrado fragment on Southern Ceará state, Brazilian Semiarid.$h[electronic resource] 260 $c2021 520 $aThere is a lack of studies on phytosociology of Cerrado fragments within the Caatinga biome, located in the Southern region of Ceará State, associated to the Brazilian Crystalline Shield geological formation. Thus, contributing to the diagnosis and knowledge of this plant community, a survey on the general flora and especially the structure of arboreal vegetation was made. Every individual with SND ≥ 3cm (total height), within 12 parcels with 12x30 m (0.432 ha) of area was sampled. The floristic similarity was calculated by the Jaccard index, in comparison with ten other Brazilian Cerrado areas. Fourty-six species distributed in 22 families were found, comprising a total of 906 individuals, with AD=2,097.22 ind.ha-1. The highest abundance was found within families Fabaceae (20.31%) and Vochysiaceae (19.98%). Qualea parviflora, Annona leptopetala, Hymenaea stignocarpa and Callisthene fasciculata had the highest IVI index species. The calculated biodiversity indexes were: alpha diversity of Shannon (H’) = 3.8 and equitability of Pielou (J’) = 0.83. The results obtained show the area as a vegetation relict, under threat due to the penetration of Caatinga species, climatic changes, insufficient conservation efforts and fast anthropic deforestation. As a result, this relict area tends to shrink to a fragment much smaller than it was in the past. 650 $aPhytosociology 650 $aCaatinga 650 $aFlora 650 $aVegetação 653 $aLavras da Mangabeira 653 $aManchas de Cerrado 653 $aSerra do Boqueirão 653 $aVegetação arbórea 700 1 $aMOURA, J. C. de 700 1 $aLISBOA, M. A. N. 700 1 $aCRUZ, G. V. 700 1 $aGONÇALVES, B. L. M. 700 1 $aBARRETO, E. S. de S. T. 700 1 $aBARROS, L. M. 700 1 $aDRUMOND, M. A. 700 1 $aMENDONÇA, A. C. A. M. 700 1 $aROCHA, L. S. G. 700 1 $aSILVA, M. A. P. da 700 1 $aCORDEIRO, L. S. 773 $tScientia Forestalis$gv. 49, n. 130, e3459, 2021.
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