Data/hora: 23/09/2024 12:57:13

Biblioteca(s): 	Embrapa Agricultura Digital.	
Data corrente: 	13/12/2018	
Data da última atualização: 	07/01/2020	
Autoria: 	SUÁREZ, W. A. B.; VANTINI, J. da S.; DUDA, R. M.; GIACHETTO, P. F.; CINTRA, L. C.; FERRO, M. I. T.; OLIVEIRA, R. A. de.	
Afiliação: 	WILMAR ALIRIO BOTELLO SUÁREZ, Unesp; JULIANA DA SILVA VANTINI, Unesp; ROSE MARIA DUDA, Fatec Jaboticabal; POLIANA FERNANDA GIACHETTO, CNPTIA; LEANDRO CARRIJO CINTRA, CNPTIA; MARIA INÊS TIRABOSCHI FERRO, Unesp; ROBERTO ALVES DE OLIVEIRA, Unesp.	
Título: 	Predominance of syntrophic bacteria, Methanosaeta and Methanoculleus in a two-stage up-flow anaerobic sludge blanket reactor treating coffee processing wastewater at high organic loading rate.	
Ano de publicação: 	2018	
Fonte/Imprenta: 	Bioresource Technology, v. 268, p. 158-168, Nov. 2018.	
DOI: 	https://doi.org/10.1016/j.biortech.2018.06.091	
Idioma: 	Inglês	
Conteúdo: 	Abstract. The effect of the organic loading rate (OLR) on the performance and microbial composition of a two-stage UASB system treating coffee processing wastewater was assessed. The system was operated with OLR up to 18.2 g COD (L d)-1 and effluent recirculation. Methane production and effluent characteristics were monitored. The microbial composition was examined through next-generation sequencing and qPCR from the anaerobic sludge of the first reactor (R1) operated at low and high OLR. The system showed operational stability, obtaining a maximum methane production of 2.2 L CH4 (L d)-1, with a removal efficiency of COD and phenolic compounds of 84 and 73%, respectively. The performance of R1 at high OLR in steady conditions was associated with an appropriate proportion of nutrients (particularly Fe) and a marked increase of the syntrophic bacteria Syntrophus and Candidatus Cloacimonas, and acetoclastic and hydrogenotrophic methanogens, mainly Methanosaeta, Methanoculleus, Methanobacterium and Methanomassiliicoccus.	
Palavras-Chave: 	Digestão anaeróbica; Metagenomics of anaerobic sludge; Methanogenic archaea; Pollutant removal; Remoção de poluente; Sistema UASB.	
Thesagro: 	Biogás.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Agricultura Digital (CNPTIA)	
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