Data/hora: 06/06/2024 16:56:56

Biblioteca(s): | Embrapa Suínos e Aves.
Data corrente: | 09/12/2016
Data da última atualização: | 18/07/2019
Autoria: | STEINMETZ, R. L. R.; MEZZARI, M. P.; SILVA, M. L. B. da; KUNZ, A.; AMARAL, A. C.; TÁPPARO, D. C.; SOARES, H. M.
Afiliação: | RICARDO LUIS RADIS STEINMETZ, CNPSA; MELISSA PAOLA MEZZARI, UNOESC; MARCIO LUIS BUSI DA SILVA, CNPSA; AIRTON KUNZ, CNPSA; ANDRÉ CESTONARO DO AMARAL, UNIOESTE; DEISI CRISTINA TÁPPARO, UNIOESTE; HUGO MOREIRA SOARES, UFSC.
Título: | Enrichment and acclimation of an anaerobic mesophilic microorganism?s inoculum for standardization of BMP assays.
Ano de publicação: | 2016
Fonte/Imprenta: | Bioresource Technology, v. 219, p. 21-28, 2016.
DOI: | http://dx.doi.org/10.1016/j.biortech.2016.07.031
Idioma: | Inglês
Conteúdo: | Appropriate enrichment of anaerobic microorganism?s consortium is crucial for accurate biochemical methane potential (BMP) assays. An alternative method to produce and maintain a mesophilic methanogenic inoculum was demonstrated. Three sources of inoculum were mixed and acclimated for 857 days in order to reach steady conditions (pH = 7.90 ± 0.46; VS/TS > 50%; VFA/alkalinity = 0.16 ± 0.04 gAcetic Acid/gCaCO3 ). Biogas yield >80% was obtained after 70 days of inoculum acclimation in comparison to standard cellulose (>600 mLN/gVS). Methanogen community analysis based on 16S rDNA of the inoculum revealed Archaea concentration of 3 1012 gene copies/g (Methanobacteriales 8 1010; Methanomicrobiales 8 1010; and Methanosarcinales 4 1011 gene copies/g). The proposed method for development and maintenance of microorganism enrichment inoculum demonstrates consistent BMP data which is a requirement for dependable prediction of biogas production at field scale operations.
Palavras-Chave: | Digestão anaeróbica.
Thesagro: | Biogás; Dejeto.
Thesaurus Nal: | Anaerobic digestion; Waste treatment.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/151566/1/final8317.pdf
Registro original: | Embrapa Suínos e Aves (CNPSA)
Exemplares: | CNPSA - (20787-1) - UPC - AP - DD -  -  -  - DIS