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Título
A systematic comparison of the potential of microalgae-bacteria and purple phototrophic bacteria consortia for the treatment of piggery wastewater
Autor
Año del Documento
2019
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Bioresource Technology, 2019, vol. 276. p. 18-27
Zusammenfassung
This study evaluated the performance of two open-photobioreactors operated with microalgae-bacteria (PBR-AB) and purple photosynthetic bacteria (PBR-PPB) consortia during the treatment of diluted (5%) piggery wastewater (PWW) at multiple hydraulic retention times (HRT). At a HRT of 10.6 days, PBR-AB provided the highest removal efficiencies of nitrogen, phosphorus and zinc (87 ± 2, 91 ± 3 and 98 ± 1%), while the highest organic carbon removals were achieved in PBR-PPB (87 ± 4%). The decrease in HRT from 10.6, to 7.6 and 4.1 day caused a gradual deterioration in organic carbon and nitrogen removal, but did not influence the removal of phosphorus and Zn in both photobioreactors. The decrease in HRT caused a severe wash-out of microalgae in PBR-AB and played a key role in the structure of bacterial population in both photobioreactors. In addition, batch biodegradation tests at multiple PWW dilutions (5, 10 and 15%) confirmed the slightly better performance of algal-bacterial systems regardless of PWW dilution.
Palabras Clave
Algal-bacterial processes
Procesos algal-bacterianos
Photobioreactor
Fotobiorreactor
Photosynthetic biodegradation
Biodegradación fotosintética
Swine manure
Estiércol porcino
ISSN
0960-8524
Revisión por pares
SI
Patrocinador
Ministerio de Ciencia, Innovación y Universidades - FEDER (CTQ2017-84006-C3-1-R)
Gobierno regional de Castilla y León (UIC 71)
EURICA program (Erasmus Mundus Action 2, Strand 1, Lot 15, Grant 2013-2587)
Gobierno regional de Castilla y León (UIC 71)
EURICA program (Erasmus Mundus Action 2, Strand 1, Lot 15, Grant 2013-2587)
Version del Editor
Propietario de los Derechos
2018 Elsevier
Idioma
eng
Tipo de versión
info:eu-repo/semantics/acceptedVersion
Derechos
openAccess
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