Start-up of anaerobic reactors for slaughterhouse wastewater treatment

Detalhes bibliográficos
Autor(a) principal: Fia, Ronaldo
Data de Publicação: 2015
Outros Autores: Pereira, Erlon L., Fia, Fátima R. L., Emboaba, Débora G., Gomes, Emanuel M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/29200
Resumo: This study aimed to evaluate the start-up of a horizontal anaerobic fixed bed reactor (HAFBR) followed by an upflow anaerobic sludge blanket (UASB) for the slaughterhouse wastewater treatment. HAFBR was filled with bamboo rings and had 1.2 m in length, 0.10 m in diameter and volume of 7.5 L. The UASB had the volume of 15 L. The HAFBR and UASB operated at organic loading rate and hydraulic retention time average of 8.46 and 3.77 kg m-3 d-1 of COD and 0.53 and 0.98 days, respectively. During 150 days of monitoring system it was found pH 6.8, relatively high values of bicarbonate alkalinity (> 1000 mg L-1) and reduced values of volatile acids (70 to 150 mg L-1), which afforded average removal efficiencies of COD total and total suspended solids of the order of 31 and 23% in HAFBR and 79% and 63% in UASB. It can be concluded that the generation and consumption of bicarbonate alkalinity and total volatile acids, thereby maintaining the pH during the study indicated stable operation of the reactors. The COD removal in the reactors was satisfactory especially when it considers that the assessment was conducted in a period of adaptation of organisms to the effluent and also the high organic load applied during this period.
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spelling Start-up of anaerobic reactors for slaughterhouse wastewater treatmentPartida de reatores anaeróbios para tratamento de efluentes de abatedouroReator anaeróbioÁguas residuárias de abatedouroÁguas residuárias - TratamentoAnaerobic filterAnaerobic fixed bed reactorWastewater - TreatmentThis study aimed to evaluate the start-up of a horizontal anaerobic fixed bed reactor (HAFBR) followed by an upflow anaerobic sludge blanket (UASB) for the slaughterhouse wastewater treatment. HAFBR was filled with bamboo rings and had 1.2 m in length, 0.10 m in diameter and volume of 7.5 L. The UASB had the volume of 15 L. The HAFBR and UASB operated at organic loading rate and hydraulic retention time average of 8.46 and 3.77 kg m-3 d-1 of COD and 0.53 and 0.98 days, respectively. During 150 days of monitoring system it was found pH 6.8, relatively high values of bicarbonate alkalinity (> 1000 mg L-1) and reduced values of volatile acids (70 to 150 mg L-1), which afforded average removal efficiencies of COD total and total suspended solids of the order of 31 and 23% in HAFBR and 79% and 63% in UASB. It can be concluded that the generation and consumption of bicarbonate alkalinity and total volatile acids, thereby maintaining the pH during the study indicated stable operation of the reactors. The COD removal in the reactors was satisfactory especially when it considers that the assessment was conducted in a period of adaptation of organisms to the effluent and also the high organic load applied during this period.Este trabalho teve por objetivo avaliar o período de partida de um reator anaeróbio horizontal de leito fixo (RAHLF), seguido de um reator anaeróbio de manta de lodo (UASB), para o tratamento de águas residuárias de abatedouro. O RAHLF, preenchido com anéis de bambu, teve 1,2 m de comprimento, 0,10 m de diâmetro e volume útil de 7,5 L. O UASB teve volume útil de 15 L. O RAHLF e o UASB operaram com carga orgânica volumétrica e tempo de detenção hidráulica médios de 8,46 e 3,77 kg m-3 d-1 de DQO e 0,53 e 0,98 dias, respectivamente. Durante 150 dias de monitoramento do sistema, verificaram-se pH de 6,8, valores relativamente elevados de alcalinidade bicarbonato (> 1.000 mg L-1) e reduzidos valores de ácidos voláteis totais (70 a 150 mg L-1), o que proporcionou eficiências médias de remoção de DQO total e sólidos suspensos da ordem de 31 e 23% no RAHLF e de 79 e 63% no UASB. Pode-se concluir que a geração de alcalinidade bicarbonato e consumo de ácidos voláteis totais e consequente manutenção do pH durante o estudo indicaram operação estável dos reatores. A remoção de DQO nos reatores foi satisfatória, principalmente quando se considera que a avaliação foi realizada em período de adaptação dos microrganismos ao efluente e também à elevada carga orgânica aplicada durante este período.Associação Brasileira de Engenharia Agrícola2018-05-15T12:03:15Z2018-05-15T12:03:15Z2015-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFIA, R. et al. Start-up of anaerobic reactors for slaughterhouse wastewater treatment. Engenharia Agrícola, Jaboticabal, v. 35, n. 2, p. 331-339, mar./abr. 2015.http://repositorio.ufla.br/jspui/handle/1/29200Engenharia Agrícolareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessFia, RonaldoPereira, Erlon L.Fia, Fátima R. L.Emboaba, Débora G.Gomes, Emanuel M.eng2023-05-02T18:06:27Zoai:localhost:1/29200Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-02T18:06:27Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Start-up of anaerobic reactors for slaughterhouse wastewater treatment
Partida de reatores anaeróbios para tratamento de efluentes de abatedouro
title Start-up of anaerobic reactors for slaughterhouse wastewater treatment
spellingShingle Start-up of anaerobic reactors for slaughterhouse wastewater treatment
Fia, Ronaldo
Reator anaeróbio
Águas residuárias de abatedouro
Águas residuárias - Tratamento
Anaerobic filter
Anaerobic fixed bed reactor
Wastewater - Treatment
title_short Start-up of anaerobic reactors for slaughterhouse wastewater treatment
title_full Start-up of anaerobic reactors for slaughterhouse wastewater treatment
title_fullStr Start-up of anaerobic reactors for slaughterhouse wastewater treatment
title_full_unstemmed Start-up of anaerobic reactors for slaughterhouse wastewater treatment
title_sort Start-up of anaerobic reactors for slaughterhouse wastewater treatment
author Fia, Ronaldo
author_facet Fia, Ronaldo
Pereira, Erlon L.
Fia, Fátima R. L.
Emboaba, Débora G.
Gomes, Emanuel M.
author_role author
author2 Pereira, Erlon L.
Fia, Fátima R. L.
Emboaba, Débora G.
Gomes, Emanuel M.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Fia, Ronaldo
Pereira, Erlon L.
Fia, Fátima R. L.
Emboaba, Débora G.
Gomes, Emanuel M.
dc.subject.por.fl_str_mv Reator anaeróbio
Águas residuárias de abatedouro
Águas residuárias - Tratamento
Anaerobic filter
Anaerobic fixed bed reactor
Wastewater - Treatment
topic Reator anaeróbio
Águas residuárias de abatedouro
Águas residuárias - Tratamento
Anaerobic filter
Anaerobic fixed bed reactor
Wastewater - Treatment
description This study aimed to evaluate the start-up of a horizontal anaerobic fixed bed reactor (HAFBR) followed by an upflow anaerobic sludge blanket (UASB) for the slaughterhouse wastewater treatment. HAFBR was filled with bamboo rings and had 1.2 m in length, 0.10 m in diameter and volume of 7.5 L. The UASB had the volume of 15 L. The HAFBR and UASB operated at organic loading rate and hydraulic retention time average of 8.46 and 3.77 kg m-3 d-1 of COD and 0.53 and 0.98 days, respectively. During 150 days of monitoring system it was found pH 6.8, relatively high values of bicarbonate alkalinity (> 1000 mg L-1) and reduced values of volatile acids (70 to 150 mg L-1), which afforded average removal efficiencies of COD total and total suspended solids of the order of 31 and 23% in HAFBR and 79% and 63% in UASB. It can be concluded that the generation and consumption of bicarbonate alkalinity and total volatile acids, thereby maintaining the pH during the study indicated stable operation of the reactors. The COD removal in the reactors was satisfactory especially when it considers that the assessment was conducted in a period of adaptation of organisms to the effluent and also the high organic load applied during this period.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
2018-05-15T12:03:15Z
2018-05-15T12:03:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv FIA, R. et al. Start-up of anaerobic reactors for slaughterhouse wastewater treatment. Engenharia Agrícola, Jaboticabal, v. 35, n. 2, p. 331-339, mar./abr. 2015.
http://repositorio.ufla.br/jspui/handle/1/29200
identifier_str_mv FIA, R. et al. Start-up of anaerobic reactors for slaughterhouse wastewater treatment. Engenharia Agrícola, Jaboticabal, v. 35, n. 2, p. 331-339, mar./abr. 2015.
url http://repositorio.ufla.br/jspui/handle/1/29200
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
dc.source.none.fl_str_mv Engenharia Agrícola
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815439280167714816

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