Título:	Biogas production from dairy cattle manure, under organic and conventional production systems.
Autoria:	MATOS, C. F. PAES, J. L. PINHEIRO, E. F. M. CAMPOS, D. V. B. de
Afiliação:	CAMILA F. MATOS, UFRRJ; JULIANA L. PAES, UFRRJ; ÉRIKA F. M. PINHEIRO, UFRRJ; DAVID VILAS BOAS DE CAMPOS, CNPS.
Ano de publicação:	2017
Referência:	Engenharia Agrícola, Jaboticabal, v. 37, n. 6, p. 1081-1090, nov./dez. 2017.
Conteúdo:	The purpose of this study was to evaluate the production of biogas, as well as the biogas production potential resulting from the anaerobic biodigestion of dairy cattle manure under organic (CMOS) and conventional (CMCS) production system. Also, the concentration of thermotolerant coliforms was evaluated after the biodigestion process. Therefore, bench biodigesters prototypes were supplied with CMOS and CMCS for 30 weeks. The experimental design was completely randomized with four repetitions for each treatment. Analysis of total solids (TS), volatile solids (VS), biogas production potential, most probable number (MPN) of thermotolerant coliforms were made. The cumulative biogas production was 6.18 L and 11.15 L, when using the CMOS and CMCS, respectively. Average biogas production potential of CMCS were 0.2; 2.6 and 2.9 L kg-1 substrate, ST and SV added, respectively and for CMOS 0.1; 1.4 and 1.9 L kg-1substrate, ST and SV added, respectively. After the anaerobic biodigestion process of CMOS and CMCS, it was observed that the concentrations of thermotolerant coliforms were well below than the limit established by law.
Thesagro:	Biodigestor
Palavras-chave:	Biodigestão anaeróbia Resíduos agrícolas
Digital Object Identifier:	https://doi.org/10.1590/1809-4430-Eng.Agric.v37n6p1081-1090/2017
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPS)