Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums.
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1109392 |
Resumo: | The production of starch generates, as a by-product, the cassava wastewater (manipueira), which can be treated by anaerobic digestion to provide biogas and minimize its polluting potential. The most commonly utilized biomass in the anaerobic digestion is the anaerobic sludge. The literature presents, as an alternative to sludge, bovine manure and ruminal fluids, being scarce the studies with the cassava wastewater. This research evaluated the influence of temperature on the microbial ability of cattle and goat rumen in anaerobically biodegrading the manipueira in substitution to the anaerobic sludge. The cattle and goat rumen specific methanogenic activities (SMA) were compared with that of the anaerobic sludge. Subsequently, by using the inoculum which had the best SMA results, cassava wastewater biodegradability tests were performed, investigating the kinetics of the organic matter removal and methane production at 32 ° C and 39 ° C. The bovine rumen presented better results in the SMA (0,315 g COD-CH4 g VSS.d-1) and methane production (1,026 mL). The temperature of 32 °C did not influence the activity of bovine ruminal inoculum as the kinetics of the biodegradation of the manipueira did not differ for the evaluated temperatures (0.1799 d-1 at 32°C and 0.1781 d-1 at 39°C). Bovine rumen achieved glucose reduction of 76% and 80% and methane yield of 77% and 79% for the tests at 32°C and 39°C, respectively. It is inferred that this type of inoculum might be used in reactors of anaerobic digestion processes for the treatment of the cassava wastewater at the ambient temperature of the semiarid region. |
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Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums.Águas residuais de mandiocaResíduos de mandiocaMandiocaBiodegradaçãoRúmenBiodegradabilityMethaneMethane productionCassavaThe production of starch generates, as a by-product, the cassava wastewater (manipueira), which can be treated by anaerobic digestion to provide biogas and minimize its polluting potential. The most commonly utilized biomass in the anaerobic digestion is the anaerobic sludge. The literature presents, as an alternative to sludge, bovine manure and ruminal fluids, being scarce the studies with the cassava wastewater. This research evaluated the influence of temperature on the microbial ability of cattle and goat rumen in anaerobically biodegrading the manipueira in substitution to the anaerobic sludge. The cattle and goat rumen specific methanogenic activities (SMA) were compared with that of the anaerobic sludge. Subsequently, by using the inoculum which had the best SMA results, cassava wastewater biodegradability tests were performed, investigating the kinetics of the organic matter removal and methane production at 32 ° C and 39 ° C. The bovine rumen presented better results in the SMA (0,315 g COD-CH4 g VSS.d-1) and methane production (1,026 mL). The temperature of 32 °C did not influence the activity of bovine ruminal inoculum as the kinetics of the biodegradation of the manipueira did not differ for the evaluated temperatures (0.1799 d-1 at 32°C and 0.1781 d-1 at 39°C). Bovine rumen achieved glucose reduction of 76% and 80% and methane yield of 77% and 79% for the tests at 32°C and 39°C, respectively. It is inferred that this type of inoculum might be used in reactors of anaerobic digestion processes for the treatment of the cassava wastewater at the ambient temperature of the semiarid region.Miriam Cleide Cavalcante de Amorim; PAULA TEREZA DE SOUZA E SILVA, CPATSA; Patricia Silva Barbosa; Nayara Evelyn Montefusco.AMORIM, M. C. C. deSILVA, P. T. de S. eBARBOSA, P. S.MONTEFUSCO, N. E.2019-05-30T00:36:44Z2019-05-30T00:36:44Z2019-05-2920192019-12-02T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleComunicata Scientiae, v. 10, n. 1, p. 65-76, 2019.http://www.alice.cnptia.embrapa.br/alice/handle/doc/110939210.14295/CS.v10i1.3009enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2019-05-30T00:36:51Zoai:www.alice.cnptia.embrapa.br:doc/1109392Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542019-05-30T00:36:51falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542019-05-30T00:36:51Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
title |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
spellingShingle |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. AMORIM, M. C. C. de Águas residuais de mandioca Resíduos de mandioca Mandioca Biodegradação Rúmen Biodegradability Methane Methane production Cassava |
title_short |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
title_full |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
title_fullStr |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
title_full_unstemmed |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
title_sort |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
author |
AMORIM, M. C. C. de |
author_facet |
AMORIM, M. C. C. de SILVA, P. T. de S. e BARBOSA, P. S. MONTEFUSCO, N. E. |
author_role |
author |
author2 |
SILVA, P. T. de S. e BARBOSA, P. S. MONTEFUSCO, N. E. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Miriam Cleide Cavalcante de Amorim; PAULA TEREZA DE SOUZA E SILVA, CPATSA; Patricia Silva Barbosa; Nayara Evelyn Montefusco. |
dc.contributor.author.fl_str_mv |
AMORIM, M. C. C. de SILVA, P. T. de S. e BARBOSA, P. S. MONTEFUSCO, N. E. |
dc.subject.por.fl_str_mv |
Águas residuais de mandioca Resíduos de mandioca Mandioca Biodegradação Rúmen Biodegradability Methane Methane production Cassava |
topic |
Águas residuais de mandioca Resíduos de mandioca Mandioca Biodegradação Rúmen Biodegradability Methane Methane production Cassava |
description |
The production of starch generates, as a by-product, the cassava wastewater (manipueira), which can be treated by anaerobic digestion to provide biogas and minimize its polluting potential. The most commonly utilized biomass in the anaerobic digestion is the anaerobic sludge. The literature presents, as an alternative to sludge, bovine manure and ruminal fluids, being scarce the studies with the cassava wastewater. This research evaluated the influence of temperature on the microbial ability of cattle and goat rumen in anaerobically biodegrading the manipueira in substitution to the anaerobic sludge. The cattle and goat rumen specific methanogenic activities (SMA) were compared with that of the anaerobic sludge. Subsequently, by using the inoculum which had the best SMA results, cassava wastewater biodegradability tests were performed, investigating the kinetics of the organic matter removal and methane production at 32 ° C and 39 ° C. The bovine rumen presented better results in the SMA (0,315 g COD-CH4 g VSS.d-1) and methane production (1,026 mL). The temperature of 32 °C did not influence the activity of bovine ruminal inoculum as the kinetics of the biodegradation of the manipueira did not differ for the evaluated temperatures (0.1799 d-1 at 32°C and 0.1781 d-1 at 39°C). Bovine rumen achieved glucose reduction of 76% and 80% and methane yield of 77% and 79% for the tests at 32°C and 39°C, respectively. It is inferred that this type of inoculum might be used in reactors of anaerobic digestion processes for the treatment of the cassava wastewater at the ambient temperature of the semiarid region. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-05-30T00:36:44Z 2019-05-30T00:36:44Z 2019-05-29 2019 2019-12-02T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Comunicata Scientiae, v. 10, n. 1, p. 65-76, 2019. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1109392 10.14295/CS.v10i1.3009 |
identifier_str_mv |
Comunicata Scientiae, v. 10, n. 1, p. 65-76, 2019. 10.14295/CS.v10i1.3009 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1109392 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503475600556032 |