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| Registros recuperados : 182 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
27/07/2021 |
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Data da última atualização: |
27/07/2021 |
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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: |
BERNARDELLI, P. V.; NAGEL-HASSEMER, M. L.; GEBLER, L. |
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Afiliação: |
PRISCILLA VEIGA BERNARDELLI, Universidade Federal de Santa Catarina (UFSC), Campus Universitário, Trindade, Florianópolis, Santa Catarina, 88040- 970, Brasil.; MARIA ELIZA NAGEL-HASSEMER, Universidade Federal de Santa Catarina (UFSC), Campus Universitário, Trindade, Florianópolis, Santa Catarina, 88040- 970, Brasil.; LUCIANO GEBLER, CNPUV. |
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Título: |
Introduction of advanced oxidative pre-treatment in the biobed reactor system in the final disposal process of pesticide effluents. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Chemical Engineering Transactions, v. 86, p. 685-690, 2021. |
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Idioma: |
Português |
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Conteúdo: |
Brazil has become the world's largest consumer of pesticides since 2008, which can lead to serious environmental, health and social risks. Practices to mitigate the impact caused by pesticide effluents in rural areas have increased in importance, given the impossibility of carrying out conventional treatment of these residues in industrial plants. Among these practices, the use of fixed-bed bioreactors, known as Biobed, stands out in reducing point contamination. It is known that this model of reactor faces difficulties in the biodegradation of some pesticides, including the fungicide tebuconazole, which can negatively interfere with its efficiency. This problem needs to be addressed in order for the biological system to meet the required environmental safety parameters. And one of these alternatives is the use of the UV/H2O2 Advanced Oxidation Process as a pre-treatment, so the pesticide effluent can reach lower concentrations before being disposed in a Biobed. The aim of this work was to evaluate the influence of the pre-treatment in relation to the Biobed. Pre-treated and untreated effluents were applied in the bioreactor in the form of columns, being evaluated at 1, 84 and 168 days after contamination, through gas chromatography that determined the concentration of the pesticide residues. The results showed that the pre-treatment fulfilled its role of reducing effluent pesticide concentration (68.1 %), without inhibiting the biological action of the Biobed reactor still serving to increase the efficiency of the tebuconazole degradation, in relation to the contaminated reactors without pre-treatment. These results allow the recommendation of Biobed systems usage with oxidative pretreatment UV/H2O2. MenosBrazil has become the world's largest consumer of pesticides since 2008, which can lead to serious environmental, health and social risks. Practices to mitigate the impact caused by pesticide effluents in rural areas have increased in importance, given the impossibility of carrying out conventional treatment of these residues in industrial plants. Among these practices, the use of fixed-bed bioreactors, known as Biobed, stands out in reducing point contamination. It is known that this model of reactor faces difficulties in the biodegradation of some pesticides, including the fungicide tebuconazole, which can negatively interfere with its efficiency. This problem needs to be addressed in order for the biological system to meet the required environmental safety parameters. And one of these alternatives is the use of the UV/H2O2 Advanced Oxidation Process as a pre-treatment, so the pesticide effluent can reach lower concentrations before being disposed in a Biobed. The aim of this work was to evaluate the influence of the pre-treatment in relation to the Biobed. Pre-treated and untreated effluents were applied in the bioreactor in the form of columns, being evaluated at 1, 84 and 168 days after contamination, through gas chromatography that determined the concentration of the pesticide residues. The results showed that the pre-treatment fulfilled its role of reducing effluent pesticide concentration (68.1 %), without inhibiting the biological action of the Biobed reactor still ... Mostrar Tudo |
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Palavras-Chave: |
Advanced Oxidative Pre-Treatment; Biobed; Biobed Reactor System; Fixed-bed bioreactors; Pesticide. |
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Thesaurus NAL: |
Pesticides; Rural areas. |
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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/224660/1/Bernardelli-CET-v86-2021.pdf
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Marc: |
LEADER 02466naa a2200229 a 4500
001 2133115
005 2021-07-27
008 2021 bl uuuu u00u1 u #d
100 1 $aBERNARDELLI, P. V.
245 $aIntroduction of advanced oxidative pre-treatment in the biobed reactor system in the final disposal process of pesticide effluents.$h[electronic resource]
260 $c2021
520 $aBrazil has become the world's largest consumer of pesticides since 2008, which can lead to serious environmental, health and social risks. Practices to mitigate the impact caused by pesticide effluents in rural areas have increased in importance, given the impossibility of carrying out conventional treatment of these residues in industrial plants. Among these practices, the use of fixed-bed bioreactors, known as Biobed, stands out in reducing point contamination. It is known that this model of reactor faces difficulties in the biodegradation of some pesticides, including the fungicide tebuconazole, which can negatively interfere with its efficiency. This problem needs to be addressed in order for the biological system to meet the required environmental safety parameters. And one of these alternatives is the use of the UV/H2O2 Advanced Oxidation Process as a pre-treatment, so the pesticide effluent can reach lower concentrations before being disposed in a Biobed. The aim of this work was to evaluate the influence of the pre-treatment in relation to the Biobed. Pre-treated and untreated effluents were applied in the bioreactor in the form of columns, being evaluated at 1, 84 and 168 days after contamination, through gas chromatography that determined the concentration of the pesticide residues. The results showed that the pre-treatment fulfilled its role of reducing effluent pesticide concentration (68.1 %), without inhibiting the biological action of the Biobed reactor still serving to increase the efficiency of the tebuconazole degradation, in relation to the contaminated reactors without pre-treatment. These results allow the recommendation of Biobed systems usage with oxidative pretreatment UV/H2O2.
650 $aPesticides
650 $aRural areas
653 $aAdvanced Oxidative Pre-Treatment
653 $aBiobed
653 $aBiobed Reactor System
653 $aFixed-bed bioreactors
653 $aPesticide
700 1 $aNAGEL-HASSEMER, M. L.
700 1 $aGEBLER, L.
773 $tChemical Engineering Transactions$gv. 86, p. 685-690, 2021.
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Embrapa Uva e Vinho (CNPUV) |
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