RT Journal Article
T1 Ciprofloxacin and trimethoprim adsorption/desorption in agricultural soils
A1 Rodríguez López, Lucía
A1 Santas Miguel, Vanesa
A1 Cela Dablanca, Raquel
A1 Núñez Delgado, Avelino
A1 Álvarez Rodríguez, Esperanza
A1 Pérez Rodríguez, Paula
A1 Arias Estévez, Manuel
K1 2511.04 Química de Suelos
K1 3209 Farmacología
K1 3308 Ingeniería y Tecnología del Medio Ambiente
AB The current research focuses on the adsorption/desorption characteristics of the antibiotics ciprofloxacin (CIP) and trimethoprim (TRI) taking place in 17 agricultural soils, which are studied by means of batch-type experiments. The results show that adsorption was higher for CIP, with Freundlich KF values ranging between 1150 and 5086 Ln µmol1−n kg−1, while they were between 29 and 110 Ln µmol1−n kg−1 in the case of TRI. Other parameters, such as the Langmuir maximum adsorption capacity (qm(ads)), as well as the Kd parameter in the linear model and also the adsorption percentages, follow the same trend as KF. Desorption was lower for CIP (with KF(des) values in the range 1089–6234 Ln µmol1−n kg−1) than for TRI (with KF(des) ranging between 26 and 138 Ln µmol1−n kg−1). The higher irreversibility of CIP adsorption was also confirmed by its lower nF(des)/nF(ads) ratios, compared to TRI. Regarding soil characteristics, it was evidenced that nitrogen and carbon contents, as well as mineral fractions, had the highest influence on the adsorption/desorption process. These results can be considered relevant as regards the fate of both antibiotics when they reach the environment as pollutants and therefore could be considered in assessment procedures focused on environmental and public health aspects.
PB International Journal of Environmental Research and Public Health
SN 16604601
YR 2022
FD 2022-07-10
LK http://hdl.handle.net/11093/3701
UL http://hdl.handle.net/11093/3701
LA eng
NO International Journal of Environmental Research and Public Health, 19(14): 8426 (2022)
NO Ministerio de Economía y Competitividad de España | Ref. RTI2018-099574-B-C21
DS Investigo
RD 05-dic-2023