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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
29/05/2019 |
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Data da última atualização: |
02/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AMORIM, M. C. C. de; SILVA, P. T. de S. e; BARBOSA, P. S.; MONTEFUSCO, N. E. |
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Afiliação: |
Miriam Cleide Cavalcante de Amorim; PAULA TEREZA DE SOUZA E SILVA, CPATSA; Patricia Silva Barbosa; Nayara Evelyn Montefusco. |
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Título: |
Anaerobic biodegradation of cassava wastewater under different temperatures and inoculums. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Comunicata Scientiae, v. 10, n. 1, p. 65-76, 2019. |
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DOI: |
10.14295/CS.v10i1.3009 |
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Idioma: |
Inglês |
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Conteúdo: |
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. MenosThe 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 o... Mostrar Tudo |
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Palavras-Chave: |
Águas residuais de mandioca; Resíduos de mandioca. |
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Thesagro: |
Biodegradação; Mandioca; Rúmen. |
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Thesaurus Nal: |
Biodegradability; Cassava; Methane; Methane production. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197823/1/manipueira-comunicata.pdf
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Marc: |
LEADER 02450naa a2200277 a 4500
001 2109392
005 2019-12-02
008 2019 bl uuuu u00u1 u #d
024 7 $a10.14295/CS.v10i1.3009$2DOI
100 1 $aAMORIM, M. C. C. de
245 $aAnaerobic biodegradation of cassava wastewater under different temperatures and inoculums.$h[electronic resource]
260 $c2019
520 $aThe 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.
650 $aBiodegradability
650 $aCassava
650 $aMethane
650 $aMethane production
650 $aBiodegradação
650 $aMandioca
650 $aRúmen
653 $aÁguas residuais de mandioca
653 $aResíduos de mandioca
700 1 $aSILVA, P. T. de S. e
700 1 $aBARBOSA, P. S.
700 1 $aMONTEFUSCO, N. E.
773 $tComunicata Scientiae$gv. 10, n. 1, p. 65-76, 2019.
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Embrapa Semiárido (CPATSA) |
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