RT info:eu-repo/semantics/article
T1 A systematic comparison of the potential of microalgae-bacteria and purple phototrophic bacteria consortia for the treatment of piggery wastewater
A1 García Guzmán, Dimas Alberto
A1 Godos Crespo, Ignacio de
A1 Domínguez Labajo, Christian
A1 Turiel Santos, Sara
A1 Bolado Rodríguez, Silvia
A1 Muñoz Torre, Raúl
K1 Algal-bacterial processes
K1 Procesos algal-bacterianos
K1 Photobioreactor
K1 Fotobiorreactor
K1 Photosynthetic biodegradation
K1 Biodegradación fotosintética
K1 Swine manure
K1 Estiércol porcino
AB 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.
PB Elsevier
SN 0960-8524
YR 2019
FD 2019
LK http://uvadoc.uva.es/handle/10324/37237
UL http://uvadoc.uva.es/handle/10324/37237
LA eng
NO Bioresource Technology, 2019, vol. 276. p. 18-27
NO Producción Científica
DS UVaDOC
RD 24-abr-2024