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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
10/03/2022 |
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Data da última atualização: |
10/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANDRÉ, A. C. L.; BARROS, E. S. C.; SILVA, P. T. de S. e; LOURENÇONI, D.; AMORIM, M. C. C. de. |
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Afiliação: |
ANDREZA CARLA LOPES ANDRÉ, UNIVASF; EDUARDO SOUZA COSTA BARROS, UNIVASF; PAULA TEREZA DE SOUZA E SILVA, CPATSA; DIAN LOURENÇONI, UNIVASF; MIRIAM CLEIDE CAVALCANTE DE AMORIM, UNIVASF. |
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Título: |
Anaerobic co-digestion of acerola (Malphigia emarginata) agro-industry effluent with domestic sewage at mesophilic and thermophilic conditions. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Semina, Ciências Exatas e Tecnológicas, v. 42, n. 1, p. 85-96, 2021, |
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DOI: |
10.5433/1679-0375.2021v42n1p85 |
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Idioma: |
Inglês |
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Conteúdo: |
This study evaluated the effect of temperature on the anaerobic co-digestion of acerola agro-industry effluent (EAV) and domestic sewage (EDT). The assays were performed in triplicates of reactor flasks using treatments with different mixture compositions (T1= 5% EDT + 95% EAV; T2= 20% EDT + 80% EAV; T3= 30% EDT + 70% EAV) and anaerobic sludge as inoculum (5 g.L−1 ), at mesophilic (35 °C) and thermophilic (55 °C) temperatures. The analyses of soluble chemical oxygen demand (CODs) and volatile fatty acids (VFA) were performed by etermining the removal efficiency of the CODs, the decay rate constant of the COD (Kd), and the percentages of anaerobic biodegradability (%BD) and methanation (%M). The inoculum biomass of the treatments was observed through scanning electron microscopy (SEM) at the end of the degradation process (12 days). Regardless of the temperature, the anaerobic digestion was considered efficient, with biodegradability above 60%. The mesophilic temperature favored the anaerobic co-digestion for all mixture compositions, presenting more diversified and structured biomass at the end of the assays, as well as higher removal efficiencies of the CODs and methanization, especially for T3 at 35 °C (63% and 51%, respectively). Furthermore, the kinetics of the degradation process proved to be more accelerated at mesophilic conditions (Kd 0.1d−1 ) and in the treatments with a higher percentage of sewage (T2M and T3M). |
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Palavras-Chave: |
Agroindústria; Co-digestão anaeróbica de efluente; Esgoto doméstico tratado; Malphigia emarginata. |
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Thesagro: |
Acerola; Biodegradação; Matéria Orgânica; Temperatura. |
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Thesaurus Nal: |
Biodegradation; Temperature. |
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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/232283/1/Anaerobic-co-digestion-of-acerola-2021.pdf
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Marc: |
LEADER 02453naa a2200301 a 4500
001 2140706
005 2022-03-10
008 2021 bl uuuu u00u1 u #d
024 7 $a10.5433/1679-0375.2021v42n1p85$2DOI
100 1 $aANDRÉ, A. C. L.
245 $aAnaerobic co-digestion of acerola (Malphigia emarginata) agro-industry effluent with domestic sewage at mesophilic and thermophilic conditions.$h[electronic resource]
260 $c2021
520 $aThis study evaluated the effect of temperature on the anaerobic co-digestion of acerola agro-industry effluent (EAV) and domestic sewage (EDT). The assays were performed in triplicates of reactor flasks using treatments with different mixture compositions (T1= 5% EDT + 95% EAV; T2= 20% EDT + 80% EAV; T3= 30% EDT + 70% EAV) and anaerobic sludge as inoculum (5 g.L−1 ), at mesophilic (35 °C) and thermophilic (55 °C) temperatures. The analyses of soluble chemical oxygen demand (CODs) and volatile fatty acids (VFA) were performed by etermining the removal efficiency of the CODs, the decay rate constant of the COD (Kd), and the percentages of anaerobic biodegradability (%BD) and methanation (%M). The inoculum biomass of the treatments was observed through scanning electron microscopy (SEM) at the end of the degradation process (12 days). Regardless of the temperature, the anaerobic digestion was considered efficient, with biodegradability above 60%. The mesophilic temperature favored the anaerobic co-digestion for all mixture compositions, presenting more diversified and structured biomass at the end of the assays, as well as higher removal efficiencies of the CODs and methanization, especially for T3 at 35 °C (63% and 51%, respectively). Furthermore, the kinetics of the degradation process proved to be more accelerated at mesophilic conditions (Kd 0.1d−1 ) and in the treatments with a higher percentage of sewage (T2M and T3M).
650 $aBiodegradation
650 $aTemperature
650 $aAcerola
650 $aBiodegradação
650 $aMatéria Orgânica
650 $aTemperatura
653 $aAgroindústria
653 $aCo-digestão anaeróbica de efluente
653 $aEsgoto doméstico tratado
653 $aMalphigia emarginata
700 1 $aBARROS, E. S. C.
700 1 $aSILVA, P. T. de S. e
700 1 $aLOURENÇONI, D.
700 1 $aAMORIM, M. C. C. de
773 $tSemina, Ciências Exatas e Tecnológicas$gv. 42, n. 1, p. 85-96, 2021
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Embrapa Semiárido (CPATSA) |
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