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Por favor, use este identificador para citar o enlazar este ítem: http://uvadoc.uva.es/handle/10324/23531
Título: Simultaneous biogas upgrading and centrate treatment in an outdoors pilot scale high rate algal pond
Autor: Posadas, Esther
Marín, David
Blanco, Saúl
Lebrero Fernández, Raquel
Muñoz Torre, Raúl
Año del Documento: 2017
Editorial: Elsevier
Descripción: Producción Científica
Documento Fuente: Bioresource Technology , 2017, Volume 232, Pages 133–141
Resumen: The bioconversion of biogas to biomethane coupled to centrate treatment was evaluated in an outdoors pilot scale high rate algal pond interconnected to an external CO2-H2S absorption column (AC) via settled broth recirculation. CO2-removal efficiencies ranged from 50 to 95% depending on the alkalinity of the cultivation broth and environmental conditions, while a complete H2S removal was achieved regardless of the operational conditions. A maximum CH4 concentration of 94% with a limited O2 and N2 stripping was recorded in the upgraded biogas at recycling liquid/biogas ratios in the AC of 1 and 2. Process operation at a constant biomass productivity of 15 g m−2 d−1 and the minimization of effluent generation supported high carbon and nutrient recoveries in the harvested biomass (C = 66 ± 8%, N = 54 ± 18%, P ≈ 100% and S = 16 ± 3%). Finally, a low diversity in the structure of the microalgae population was promoted by the environmental and operational conditions imposed.
Palabras Clave: Aguas residuales
Microalgas
Revisión por Pares: SI
DOI: https://doi.org/10.1016/j.biortech.2017.01.071
Patrocinador: Ministerio de Economía, Industria y Competitividad (Project CTM2015-70442-R and Red Novedar)
Version del Editor: http://www.sciencedirect.com/science/article/pii/S0960852417301402
Idioma: eng
URI: http://uvadoc.uva.es/handle/10324/23531
Derechos: info:eu-repo/semantics/openAccess
Aparece en las colecciones:DEP48 - Artículos de revista

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