Data/hora: 05/06/2024 09:03:47

Provedor de dados: 	70	
País: 	Brazil	
Título: 	EFFECT OF ORGANIC LOAD AND ALKALINITY ON DAIRY WASTEWATER BIOMETHANATION	
Autores: 	Kispergher,Eduardo M.; D'Aquino,Camila A.; Costa Junior,Luis C. da; Mello,Thiago C. de; Weinschutz,Regina; Mathias,Alvaro L.	
Data: 	2017-08-01	
Ano: 	2017	
Palavras-chave: 	Dairy industry; Biofilter; Hydraulic retention time; Alkalinity; Biogas.	
Resumo: 	ABSTRACT: This study aimed to evaluate the effect of variations in organic load (hydraulic retention times - HRTs: from 2 to 0.5 day) and in alkalinity (NaHCO3 from 4,000 to 1,000 mg.L−1) on methane production. Biomass of sewage sludge was inoculated and stabilized on 1" polypropylene rings. The rings were immersed in the liquid phase (8.41 L) of an upflow anaerobic filter reactor (12.22 L). A solution of 5 g of whole milk powder per liter was used to simulate effluent from the dairy industry. Process effectiveness was measured by chemical oxygen demand reduction, biogas production, and biogas methane content. Biogas production started at a 2-day HRT and synthetic effluent alkalinization with 4,000 mg.L−1 NaHCO3. The best operation condition was at 1-day HRT and with the addition of 4,000 mg.L−1 NaHCO3. Biogas production reached 1.5 NL of biogas per L of reactor liquid phase, with 68% of methane and a concomitant reduction in COD of 57%.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400820	
Editor: 	Associação Brasileira de Engenharia Agrícola	
Relação: 	10.1590/1809-4430-eng.agric.v37n4p820-827/2017	
Formato: 	text/html	
Fonte: 	Engenharia Agrícola  v.37 n.4 2017	
Fonte: 	info:eu-repo/semantics/openAccess