Removal of a mixture of veterinary medicinal products by adsorption onto a Scenedesmus almeriensis microalgae-bacteria consortium
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Títol
Removal of a mixture of veterinary medicinal products by adsorption onto a Scenedesmus almeriensis microalgae-bacteria consortiumAutoria
Data de publicació
2021-07-29Editor
ElsevierISSN
2214-7144Cita bibliogràfica
ZAMBRANO, Johanna, et al. Removal of a mixture of veterinary medicinal products by adsorption onto a Scenedesmus almeriensis microalgae-bacteria consortium. Journal of Water Process Engineering, 2021, vol. 43, p. 102226.Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
The adsorption of the veterinary medicinal products (VMP) tetracycline (TET), ciprofloxacin (CIP), sulfadiazine
(SDZ) and sulfamethoxazole (SMX) onto a dried Scenedesmus almeriensis microalgae-bacteria consortium ... [+]
The adsorption of the veterinary medicinal products (VMP) tetracycline (TET), ciprofloxacin (CIP), sulfadiazine
(SDZ) and sulfamethoxazole (SMX) onto a dried Scenedesmus almeriensis microalgae-bacteria consortium was
studied at several equilibrium concentrations (20 to 1000 μg/L). Scanning electron microscopy (SEM) and
Fourier-transform infrared spectroscopy (FTIR) analysis were performed to investigate the surface morphology of
the microalgae and to identify the effect of the antibiotics´functional groups on the surface of the consortium of
S. almeriensis and bacteria. Ultra-high performance liquid chromatography tandem mass spectrometry (UHPLCMS/MS) was used to determine the feasibility of this consortium for the removal of antibiotics via biosorption.
Freundlich and Langmuir adsorption models were used for the mathematical description of the adsorption
equilibrium. Pseudo-first order and pseudo-second order kinetic models were applied to fit the biosorption
experimental data. Relative antibiotic removal was higher at low equilibrium concentrations. In the range of the
initial VMP concentration studied, ciprofloxacin and tetracycline exhibited the highest removal efficiency of
43–100% and 75–82%, respectively. Likewise, ciprofloxacin and tetraciclyne presented the highest adsorption
rates of 0.11–26.66 and 1.78–27.09 mg⋅μg− 1
⋅h− 1
, respectively. This study revealed that the S. almeriensis-bacteria
consortium has a high biosorption power and proved that biosorption is an important mechanism in the removal
of ciprofloxacin and tetraciclyne using a microalgae-based water treatment process. However, sulfadiazine and
sulfamethoxazole removals did not exceed 32%. [-]
Publicat a
Journal of Water Process Engineering 43 (2021) 102226Entitat finançadora
Junta de Castilla y León | Ministerios de Ciencia e Innovación y de Universidades | EU-FEDER
Codi del projecte o subvenció
UIC 071 | CLU 2017-09 | VA080G18 | CTQ2017-84006-C3-1-R | (CLU 2017-09 | CTQ2017-84006-C3-1-R
Drets d'accés
2214-7144/© 2021 Universidad de Valladolid. Published by Elsevier Ltd. This is an open access article under the CC BY license
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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