Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes

Detalhes bibliográficos
Autor(a) principal: Silva, Vanessa Riani Olmi
Data de Publicação: 2007
Tipo de documento: Tese
Idioma: por
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://locus.ufv.br/handle/123456789/515
Resumo: The anaerobic systems for wastewater treatment are viable for several reasons, such as low cost and energy use of the biogas generated. However, the anaerobic digestion process is not yet completely understood, mainly due to the lack of knowledge about the toxicity of the anaerobic microbiota present in the sludge with respect to several compounds. In the case of effluents originated from swine manure, antibiotics, widely used both for therapeutic and prophylactic purposes and as growth promoters, are the major compounds that may inhibit these microorganisms. This study aimed to evaluate the effect of some antibiotics normally used in swine culture, on the microbiota responsible for the process of anaerobic digestion of effluents. The experiment was divided into three stages. In the first stage, the possibility of using a synthetic medium as a substitute for the natural swine manure effluent was evaluated in order to prevent the effect of antibiotics likely present as well as to prevent variations normally observed in this type of effluent. The two media were compared as to their behavior and stability under up flow anaerobic sludge blanket reactor (UASB) treatment by applying two levels of biological loads for each medium (0.2 and 0.4 kg COD.kg SVT-1.d-1). The results showed that the reactors containing synthetic medium presented a behavior similar to that of those containing natural effluent both in organic matter removal efficiency and system stability, pointing to the possibility of their use as models in experiments evaluating swine manure effluent treatment systems. In the second stage, the individual effect of antibiotics on anaerobic digestion in the synthetic medium was evaluated. Thus, five antibiotics, amoxicillin, enrofloxacin, gentamicin, oxytetracycline and tylosin, were used at four concentrations each. It was verified that at concentrations normally found in swine manure effluents, only amoxicillin and tilosine had an inhibitory effect. In the third and last stage, the combined effect of these antibiotics was evaluated, by testing all the possible combinations using the five antibiotics. It was observed that the combination of all the antibiotics and the several combinations of these compounds associated four by four and three by three had an inhibitory effect on anaerobic digestion. For the two by two combination, only the amoxicillin and gentamicin association failed to present an inhibitory effect.
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spelling Silva, Vanessa Riani Olmihttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4760238U2Passos, Frederico José Vieirahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781218J9Silva, Cláudio Mudadohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727931T6Mancilha, Ismael Maciel dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783628T2Mounteer, Ann Honorhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723208Y4Felipe, Maria das Graças de Almeidahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780381U12015-03-26T12:25:19Z2007-10-152015-03-26T12:25:19Z2007-01-22SILVA, Vanessa Riani Olmi. Effect of antibiotics utilized in swine culture on the anaerobic digestion of effluents. 2007. 119 f. Tese (Doutorado em Ciência de Alimentos; Tecnologia de Alimentos; Engenharia de Alimentos) - Universidade Federal de Viçosa, Viçosa, 2007.http://locus.ufv.br/handle/123456789/515The anaerobic systems for wastewater treatment are viable for several reasons, such as low cost and energy use of the biogas generated. However, the anaerobic digestion process is not yet completely understood, mainly due to the lack of knowledge about the toxicity of the anaerobic microbiota present in the sludge with respect to several compounds. In the case of effluents originated from swine manure, antibiotics, widely used both for therapeutic and prophylactic purposes and as growth promoters, are the major compounds that may inhibit these microorganisms. This study aimed to evaluate the effect of some antibiotics normally used in swine culture, on the microbiota responsible for the process of anaerobic digestion of effluents. The experiment was divided into three stages. In the first stage, the possibility of using a synthetic medium as a substitute for the natural swine manure effluent was evaluated in order to prevent the effect of antibiotics likely present as well as to prevent variations normally observed in this type of effluent. The two media were compared as to their behavior and stability under up flow anaerobic sludge blanket reactor (UASB) treatment by applying two levels of biological loads for each medium (0.2 and 0.4 kg COD.kg SVT-1.d-1). The results showed that the reactors containing synthetic medium presented a behavior similar to that of those containing natural effluent both in organic matter removal efficiency and system stability, pointing to the possibility of their use as models in experiments evaluating swine manure effluent treatment systems. In the second stage, the individual effect of antibiotics on anaerobic digestion in the synthetic medium was evaluated. Thus, five antibiotics, amoxicillin, enrofloxacin, gentamicin, oxytetracycline and tylosin, were used at four concentrations each. It was verified that at concentrations normally found in swine manure effluents, only amoxicillin and tilosine had an inhibitory effect. In the third and last stage, the combined effect of these antibiotics was evaluated, by testing all the possible combinations using the five antibiotics. It was observed that the combination of all the antibiotics and the several combinations of these compounds associated four by four and three by three had an inhibitory effect on anaerobic digestion. For the two by two combination, only the amoxicillin and gentamicin association failed to present an inhibitory effect.Os sistemas anaeróbios de tratamento de resíduos são viáveis, por diversos fatores, como o baixo custo e o aproveitamento energético do biogás gerado. Porém, o processo de digestão anaeróbia ainda não está totalmente esclarecido, principalmente devido ao desconhecimento sobre a toxicidade apresentada pela microbiota anaeróbia presente no lodo em relação a diversos compostos. Para o caso de efluentes oriundos de suinoculturas, os principais compostos que podem provocar a inibição desses microrganismos são os antibióticos, amplamente utilizados, tanto para fins terapêuticos e profiláticos, quanto como promotores de crescimento. Neste estudo, avaliou-se o efeito de alguns antibióticos, normalmente empregados em suinocultura, sobre a microbiota responsável pelo processo de digestão anaeróbia de efluentes, cujo experimento foi dividido em três etapas. Na primeira etapa, foi avaliada a possibilidade de utilização de um meio sintético em substituição ao efluente natural de suinocultura, a fim de evitar o efeito dos antibióticos possivelmente presentes, como também as variações normalmente observadas nesse tipo de efluente. Os dois meios foram comparados quanto ao comportamento e à estabilidade ao serem tratados em reatores anaeróbios de fluxo ascendente e manta de lodo (reatores UASB), empregando-se dois níveis de cargas biológicas para cada meio (0,2 e 0,4 kg DQO.kg STV-1.d-1). Os resultados mostraram que os reatores com meio sintético apresentaram comportamentos similares aos que continham efluente natural, tanto em relação à eficiência de remoção de matéria orgânica, quanto à estabilidade do sistema, o que apontou para a possibilidade de sua utilização como modelo em experimentos de avaliação de sistemas de tratamento de efluentes de suinocultura. Em uma segunda etapa, avaliou-se o efeito individual dos antibióticos sobre a digestão anaeróbia do meio sintético. Para isso, foram utilizados cinco antibióticos, amoxicilina, enrofloxacina, gentamicina, oxitetraciclina e tilosina, em quatro concentrações cada. Verificou-se que, nas concentrações normalmente encontradas em efluentes de suinocultura, apenas amoxicilina e tilosina apresentaram efeito inibitório. Na terceira e última etapa, foi avaliado o efeito combinado desses antibióticos, testando-se todas as possíveis combinações entre os cinco antibióticos. Observou-se que a combinação de todos os antibióticos e as diversas combinações destes compostos associados quatro a quatro e três a três apresentaram efeito inibitório sobre a digestão anaeróbia. Para a combinação dois a dois, apenas a associação de amoxicilina e gentamicina não apresentou efeito inibitório.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de ViçosaDoutorado em Ciência e Tecnologia de AlimentosUFVBRCiência de Alimentos; Tecnologia de Alimentos; Engenharia de AlimentosDigestão anaeróbiaEfluenteSuinoculturaAntibióticosAnaerobic digestionEffluentSwineAntibioticsCNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS::CIENCIA DE ALIMENTOSEfeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentesEffect of antibiotics utilized in swine culture on the anaerobic digestion of effluentsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf465630https://locus.ufv.br//bitstream/123456789/515/1/texto%20completo.pdf9fe268694816030af9e5afc1b1175f67MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain180086https://locus.ufv.br//bitstream/123456789/515/2/texto%20completo.pdf.txtee4b2f4f9b6343d63a2d044139d4a2aaMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3556https://locus.ufv.br//bitstream/123456789/515/3/texto%20completo.pdf.jpg16f7e4aa3dec0feeef70f8a3b03f71b9MD53123456789/5152016-04-06 23:07:06.64oai:locus.ufv.br:123456789/515Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-07T02:07:06LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.por.fl_str_mv Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
dc.title.alternative.eng.fl_str_mv Effect of antibiotics utilized in swine culture on the anaerobic digestion of effluents
title Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
spellingShingle Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
Silva, Vanessa Riani Olmi
Digestão anaeróbia
Efluente
Suinocultura
Antibióticos
Anaerobic digestion
Effluent
Swine
Antibiotics
CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS::CIENCIA DE ALIMENTOS
title_short Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
title_full Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
title_fullStr Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
title_full_unstemmed Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
title_sort Efeito de antibióticos utilizados em suinocultura sobre a digestão anaeróbia de efluentes
author Silva, Vanessa Riani Olmi
author_facet Silva, Vanessa Riani Olmi
author_role author
dc.contributor.authorLattes.por.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4760238U2
dc.contributor.author.fl_str_mv Silva, Vanessa Riani Olmi
dc.contributor.advisor-co1.fl_str_mv Passos, Frederico José Vieira
dc.contributor.advisor-co1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4781218J9
dc.contributor.advisor-co2.fl_str_mv Silva, Cláudio Mudado
dc.contributor.advisor-co2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4727931T6
dc.contributor.advisor1.fl_str_mv Mancilha, Ismael Maciel de
dc.contributor.advisor1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783628T2
dc.contributor.referee1.fl_str_mv Mounteer, Ann Honor
dc.contributor.referee1Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723208Y4
dc.contributor.referee2.fl_str_mv Felipe, Maria das Graças de Almeida
dc.contributor.referee2Lattes.fl_str_mv http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4780381U1
contributor_str_mv Passos, Frederico José Vieira
Silva, Cláudio Mudado
Mancilha, Ismael Maciel de
Mounteer, Ann Honor
Felipe, Maria das Graças de Almeida
dc.subject.por.fl_str_mv Digestão anaeróbia
Efluente
Suinocultura
Antibióticos
topic Digestão anaeróbia
Efluente
Suinocultura
Antibióticos
Anaerobic digestion
Effluent
Swine
Antibiotics
CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS::CIENCIA DE ALIMENTOS
dc.subject.eng.fl_str_mv Anaerobic digestion
Effluent
Swine
Antibiotics
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS::CIENCIA DE ALIMENTOS
description The anaerobic systems for wastewater treatment are viable for several reasons, such as low cost and energy use of the biogas generated. However, the anaerobic digestion process is not yet completely understood, mainly due to the lack of knowledge about the toxicity of the anaerobic microbiota present in the sludge with respect to several compounds. In the case of effluents originated from swine manure, antibiotics, widely used both for therapeutic and prophylactic purposes and as growth promoters, are the major compounds that may inhibit these microorganisms. This study aimed to evaluate the effect of some antibiotics normally used in swine culture, on the microbiota responsible for the process of anaerobic digestion of effluents. The experiment was divided into three stages. In the first stage, the possibility of using a synthetic medium as a substitute for the natural swine manure effluent was evaluated in order to prevent the effect of antibiotics likely present as well as to prevent variations normally observed in this type of effluent. The two media were compared as to their behavior and stability under up flow anaerobic sludge blanket reactor (UASB) treatment by applying two levels of biological loads for each medium (0.2 and 0.4 kg COD.kg SVT-1.d-1). The results showed that the reactors containing synthetic medium presented a behavior similar to that of those containing natural effluent both in organic matter removal efficiency and system stability, pointing to the possibility of their use as models in experiments evaluating swine manure effluent treatment systems. In the second stage, the individual effect of antibiotics on anaerobic digestion in the synthetic medium was evaluated. Thus, five antibiotics, amoxicillin, enrofloxacin, gentamicin, oxytetracycline and tylosin, were used at four concentrations each. It was verified that at concentrations normally found in swine manure effluents, only amoxicillin and tilosine had an inhibitory effect. In the third and last stage, the combined effect of these antibiotics was evaluated, by testing all the possible combinations using the five antibiotics. It was observed that the combination of all the antibiotics and the several combinations of these compounds associated four by four and three by three had an inhibitory effect on anaerobic digestion. For the two by two combination, only the amoxicillin and gentamicin association failed to present an inhibitory effect.
publishDate 2007
dc.date.available.fl_str_mv 2007-10-15
2015-03-26T12:25:19Z
dc.date.issued.fl_str_mv 2007-01-22
dc.date.accessioned.fl_str_mv 2015-03-26T12:25:19Z
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dc.identifier.citation.fl_str_mv SILVA, Vanessa Riani Olmi. Effect of antibiotics utilized in swine culture on the anaerobic digestion of effluents. 2007. 119 f. Tese (Doutorado em Ciência de Alimentos; Tecnologia de Alimentos; Engenharia de Alimentos) - Universidade Federal de Viçosa, Viçosa, 2007.
dc.identifier.uri.fl_str_mv http://locus.ufv.br/handle/123456789/515
identifier_str_mv SILVA, Vanessa Riani Olmi. Effect of antibiotics utilized in swine culture on the anaerobic digestion of effluents. 2007. 119 f. Tese (Doutorado em Ciência de Alimentos; Tecnologia de Alimentos; Engenharia de Alimentos) - Universidade Federal de Viçosa, Viçosa, 2007.
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