RT Journal Article
T1 Azithromycin adsorption onto different soils
A1 Cela Dablanca, Raquel
A1 Barreiro Buján, Ana
A1 Rodríguez López, Lucía
A1 Pérez Rodríguez, Paula
A1 Arias Estévez, Manuel
A1 Fernández Sanjurjo, María J.
A1 Álvarez Rodríguez, Esperanza
A1 Núñez Delgado, Avelino
K1 Antibiotic
K1 Emerging contaminants
K1 Adsorption
K1 Desorption
K1 Environment
AB The antibiotic azithromycin (AZM) is one of the most persistent in the environment, with potential to cause serious health and environmental problems. As some polluting discharges containing this antibiotic can reach the soil, it is clearly relevant determining the ability of soils with different characteristics to retain it. In this research, AZM adsorption and desorption were studied for a variety of soils, using batch-type experiments. The results show that, at low doses of antibiotic added (less than or equal to 50 µmol L−1), the adsorption always reached 100%, while when higher concentrations were added (between 200 and 600 µmol L−1) the highest adsorption corresponded to soils with higher pH values. Adsorption data were fitted to the Linear, Langmuir and Freundlich models, with the latter showing the best fit, in view of the determination coefficient. No desorption was detected, indicating that AZM is strongly adsorbed to the soils evaluated, suggesting that the risks of environmental problems due to this contaminant are minimized for these edaphic media. These results can be considered relevant with respect to risk assessment and possible programming of measures aimed at controlling environmental contamination by emerging contaminants, especially from the group of antibiotics, and in particular from AZM.
PB MDPI
SN 2227-9717
YR 2022
FD 2022
LK https://hdl.handle.net/10347/38496
UL https://hdl.handle.net/10347/38496
LA eng
NO Cela-Dablanca, R., Barreiro, A., Rodríguez-López, L., Pérez-Rodríguez, P., Arias-Estévez, M., Fernández-Sanjurjo, M. J., Álvarez-Rodríguez, E., & Núñez-Delgado, A. (2022). Azithromycin adsorption onto different soils. Processes, 10(12), 1-10. https://doi.org/10.3390/pr10122565
NO This research was funded by Spanish Ministry of Science, Innovation and Universities, grant numbers RTI2018-099574-B-C21 and RTI2018-099574-B-C22
DS Minerva
RD 23 abr 2026