2026-05-05T11:33:08Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/782272025-10-06T07:26:41Zcom_10324_39910com_10324_894col_10324_39911
UVaDOC
author
Hurtado, M.
author
Filipigh, Ángel Alejandro
author
Ciardi, Martina
author
Acién Fernández, Francisco Gabriel
author
Bolado Rodríguez, Silvia
author
Rojo De Benito, Elena María
editor
Elsevier
2025-09-30T13:12:23Z
2025-09-30T13:12:23Z
2024
Environmental Technology & Innovation Volume 34, May 2024, 103632, https://doi.org/10.1016/j.eti.2024.103632
https://uvadoc.uva.es/handle/10324/78227
10.71569/6663-aq96
Photobioreactors are a promising alternative for piggery wastewater treatment which allows to produce valuable biomass, but the presence of antibiotics or heavy metals in the pig manure can influence the biomass composition and the posterior valorization processes. This study evaluates the effect of these pollutants on mass, composition and hydrolysis yields of the consortia of microalgae and bacteria obtained in a 1280 L photobioreactor treating pig manure. The photobioreactor feed was doped with 1) veterinary antibiotics; 2) copper, zinc, and arsenic; and 3) combination of both pollutants. The pollutants presence decreased the mass of biomass grown in the photobioreactor by up to 35% while glucose content of the biomass by up to 42% and increased protein and xylose by 30% and 16% due to oxidative stress. Likewise, they increased the protein solubilization yield by acid hydrolysis at 120 ºC by 32% while reduced glucose solubilization by 49% after alkaline hydrolysis at 120 ºC. Applying enzymatic hydrolysis and ultrasound assisted enzymatic extractions, glucose and xylose recoveries were drastically reduced in presence of heavy metals (∼100%). Antibiotics increased xylose solubilization by ultrasonication (74%), but also its degradation, decreasing xylose recovery. Thus, the presence of all these pollutants in pig manure affected biomass production and valorization and these results must be considered for biorefinery processes.
spa
CC0 1.0 Universal
Veterinary antibiotics and metals impact the mass, composition and hydrolysis of biomass cultivated in piggery wastewater treatment photobioreactors
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e8e0bf884b8420d6628a5633990359c4
1230484
image/tiff
UAEE MET 50 003.tif