RT info:eu-repo/semantics/article
T1 Current concentrations of Zn, Cu, and As in piggery wastewater compromise nutrient removals in microalgae–bacteria photobioreactors due to altered microbial communities
A1 Collao Torres, Javiera
A1 García Encina, Pedro Antonio
A1 Blanco, Saúl
A1 Bolado Rodríguez, Silvia
A1 Fernández González, Nuria
K1 Heavy metals - Environmental aspects
K1 Metales pesados
K1 Microbiology
K1 Water quality
K1 Agua - Calidad
K1 Water - Purification
K1 Aguas residuales - Depuración y tratamiento
K1 Swine
K1 Cerdos
K1 Hazardous wastes
K1 Residuos peligrosos
K1 3308 Ingeniería y Tecnología del Medio Ambiente
K1 2414 Microbiología
AB Simple Summary: Photobioreactor systems based on consortia of microalgae and bacteria are a promising, efficient and sustainable alternative for treatment of wastewaters with high nitrogen content, such as piggery wastewater. In these biological systems, microorganisms play a key role in wastewater treatment by degradation of organic matter and accumulation of nutrients into the generated biomass. However, these wastewaters often contain high concentrations of zinc, copper and arsenic, which can severely affect the activity and growth of microorganisms, and so, the wastewater treatment performance. This article studies the effect of high concentrations of zinc, copper and arsenic on microbial communities, specifically microalgae and bacteria, in photobioreactors treating piggery wastewater, with the aim of elucidating their impact on wastewater treatment performance. For this purpose, the growth of microalgae and the composition and structure of bacterial communities exposed to these pollutants were studied. The performance of the reactors was also evaluated by determining the removal of nutrients, zinc, copper and arsenic. The results showed that high concentrations of zinc, copper and arsenic in piggery wastewater significantly affect the microbiome of the reactors without recovery after exposure to these contaminants, resulting in poorer performance of the reactors and compromising the environmental and health impact of treated effluents.
PB MDPI
SN 2079-7737
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/60784
UL https://uvadoc.uva.es/handle/10324/60784
LA eng
NO Biology, 2022, Vol. 11, Nº. 8, 1176
NO Producción Científica
DS UVaDOC
RD 07-ago-2024