Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | https://elibrary.asabe.org/azdez.asp?JID=1&AID=25498&CID=lenv2009&T=2 http://hdl.handle.net/11449/70840 |
Resumo: | In this work, the efficiency of two-stage upflow anaerobic sludge blanket (UASB) reactors was evaluated in bench scale, for treating a liquid effluent from coffee pulping. Hydraulic detention times (HDT) were 4.0; 5.2 and 6.2 days, resulting in organic loading rates (OLR) of 5.8; 3.6 and 3.0g total COD per (L-d) in the first reactor (Rl) and HDT of 2.0; 2.6 and 3.1 days with OLR of 5.8; 0.5 and 0.4 g total COD per (L-d) in the second reactor (R2). The medium values of total COD affluent varied from 15.440 to 23.040 mg O 2/L, and in the effluent to the reactors 1 and 2 were from l.lOO to 11.500 mg 0 2/L and 420 to 9.000 mg O 2/L, respectively. The medium values of removal efficiencies of total COD and TSS varied from 66 to 98% and 93 to 97%, respectively, in the system of treatment with the UASB reactors, in two stages. The content of methane in the biogas varied from 69 to 89% in the Rl and from 52 to 73% in the R2. The maximum volumetric methane production of 0.483 m 3 CH 4per (m 3 reactor d) was obtained with OLR of 3.6 g total COD per (L reactor d) and HDT of 6.2 days in the Rl. The volatile fatty acids concentration was kept below 100mg/L with HDT of 5.2 and 6.2 days in the Rl and HDT of 2.6 and 3.1 days in the R2. |
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Repositório Institucional da UNESP |
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Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stagesAnaerobic digestionCoffee wastewaterPhenolsAnaerobic treatmentsLiquid effluentsMethane productionsOrganic loading ratesRemoval efficienciesTwo stagesUasb reactorsUp-flow anaerobic sludge blanket reactorsUp-flow anaerobic sludge blanketsVolatile fatty acidsAgricultureBiogasChemical oxygen demandEffluentsFatty acidsMethaneRemovalWastewaterWastewater treatmentIn this work, the efficiency of two-stage upflow anaerobic sludge blanket (UASB) reactors was evaluated in bench scale, for treating a liquid effluent from coffee pulping. Hydraulic detention times (HDT) were 4.0; 5.2 and 6.2 days, resulting in organic loading rates (OLR) of 5.8; 3.6 and 3.0g total COD per (L-d) in the first reactor (Rl) and HDT of 2.0; 2.6 and 3.1 days with OLR of 5.8; 0.5 and 0.4 g total COD per (L-d) in the second reactor (R2). The medium values of total COD affluent varied from 15.440 to 23.040 mg O 2/L, and in the effluent to the reactors 1 and 2 were from l.lOO to 11.500 mg 0 2/L and 420 to 9.000 mg O 2/L, respectively. The medium values of removal efficiencies of total COD and TSS varied from 66 to 98% and 93 to 97%, respectively, in the system of treatment with the UASB reactors, in two stages. The content of methane in the biogas varied from 69 to 89% in the Rl and from 52 to 73% in the R2. The maximum volumetric methane production of 0.483 m 3 CH 4per (m 3 reactor d) was obtained with OLR of 3.6 g total COD per (L reactor d) and HDT of 6.2 days in the Rl. The volatile fatty acids concentration was kept below 100mg/L with HDT of 5.2 and 6.2 days in the Rl and HDT of 2.6 and 3.1 days in the R2.Doutorando em Microbiologia Agropecuaria FCAV-UNESPDepartamento de Engenharia Rural FCAV-UNESPDoutorando em Microbiologia Agropecuaria FCAV-UNESPDepartamento de Engenharia Rural FCAV-UNESPUniversidade Estadual Paulista (Unesp)Bruno, M. [UNESP]Oliveira, R. A. de [UNESP]2014-05-27T11:23:49Z2014-05-27T11:23:49Z2008-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject191-198application/pdfhttps://elibrary.asabe.org/azdez.asp?JID=1&AID=25498&CID=lenv2009&T=2Livestock Environment VIII - Proceedings of the 8th International Symposium, p. 191-198.http://hdl.handle.net/11449/708402-s2.0-631491274012-s2.0-63149127401.pdf4115632587013747Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Environment VIII - Proceedings of the 8th International Symposiuminfo:eu-repo/semantics/openAccess2024-06-06T15:18:58Zoai:repositorio.unesp.br:11449/70840Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:51:50.402392Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages |
title |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages |
spellingShingle |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages Bruno, M. [UNESP] Anaerobic digestion Coffee wastewater Phenols Anaerobic treatments Liquid effluents Methane productions Organic loading rates Removal efficiencies Two stages Uasb reactors Up-flow anaerobic sludge blanket reactors Up-flow anaerobic sludge blankets Volatile fatty acids Agriculture Biogas Chemical oxygen demand Effluents Fatty acids Methane Removal Wastewater Wastewater treatment |
title_short |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages |
title_full |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages |
title_fullStr |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages |
title_full_unstemmed |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages |
title_sort |
Anaerobic treatment of wastewater from coffee pulping in upflow anaerobic sludge blanket (UASB) in two stages |
author |
Bruno, M. [UNESP] |
author_facet |
Bruno, M. [UNESP] Oliveira, R. A. de [UNESP] |
author_role |
author |
author2 |
Oliveira, R. A. de [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Bruno, M. [UNESP] Oliveira, R. A. de [UNESP] |
dc.subject.por.fl_str_mv |
Anaerobic digestion Coffee wastewater Phenols Anaerobic treatments Liquid effluents Methane productions Organic loading rates Removal efficiencies Two stages Uasb reactors Up-flow anaerobic sludge blanket reactors Up-flow anaerobic sludge blankets Volatile fatty acids Agriculture Biogas Chemical oxygen demand Effluents Fatty acids Methane Removal Wastewater Wastewater treatment |
topic |
Anaerobic digestion Coffee wastewater Phenols Anaerobic treatments Liquid effluents Methane productions Organic loading rates Removal efficiencies Two stages Uasb reactors Up-flow anaerobic sludge blanket reactors Up-flow anaerobic sludge blankets Volatile fatty acids Agriculture Biogas Chemical oxygen demand Effluents Fatty acids Methane Removal Wastewater Wastewater treatment |
description |
In this work, the efficiency of two-stage upflow anaerobic sludge blanket (UASB) reactors was evaluated in bench scale, for treating a liquid effluent from coffee pulping. Hydraulic detention times (HDT) were 4.0; 5.2 and 6.2 days, resulting in organic loading rates (OLR) of 5.8; 3.6 and 3.0g total COD per (L-d) in the first reactor (Rl) and HDT of 2.0; 2.6 and 3.1 days with OLR of 5.8; 0.5 and 0.4 g total COD per (L-d) in the second reactor (R2). The medium values of total COD affluent varied from 15.440 to 23.040 mg O 2/L, and in the effluent to the reactors 1 and 2 were from l.lOO to 11.500 mg 0 2/L and 420 to 9.000 mg O 2/L, respectively. The medium values of removal efficiencies of total COD and TSS varied from 66 to 98% and 93 to 97%, respectively, in the system of treatment with the UASB reactors, in two stages. The content of methane in the biogas varied from 69 to 89% in the Rl and from 52 to 73% in the R2. The maximum volumetric methane production of 0.483 m 3 CH 4per (m 3 reactor d) was obtained with OLR of 3.6 g total COD per (L reactor d) and HDT of 6.2 days in the Rl. The volatile fatty acids concentration was kept below 100mg/L with HDT of 5.2 and 6.2 days in the Rl and HDT of 2.6 and 3.1 days in the R2. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-12-01 2014-05-27T11:23:49Z 2014-05-27T11:23:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://elibrary.asabe.org/azdez.asp?JID=1&AID=25498&CID=lenv2009&T=2 Livestock Environment VIII - Proceedings of the 8th International Symposium, p. 191-198. http://hdl.handle.net/11449/70840 2-s2.0-63149127401 2-s2.0-63149127401.pdf 4115632587013747 |
url |
https://elibrary.asabe.org/azdez.asp?JID=1&AID=25498&CID=lenv2009&T=2 http://hdl.handle.net/11449/70840 |
identifier_str_mv |
Livestock Environment VIII - Proceedings of the 8th International Symposium, p. 191-198. 2-s2.0-63149127401 2-s2.0-63149127401.pdf 4115632587013747 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Livestock Environment VIII - Proceedings of the 8th International Symposium |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
191-198 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129259228626944 |