RT Journal Article
T1 Novel approach for azole fungicides extraction from aqueous environments using terpenes and eutectic solvents
A1 Rodríguez Llorente, Diego
A1 García Fernández de la Puente, Enrique
A1 García Rodríguez, Juan
A1 Larriba Martínez, Marcos
AB The presence of azole fungicides in aquatic environments is a significant issue due to their toxicity and persistence related to a low removal of these compounds by conventional processes in wastewater treatment plants. A growing environmental public concern is reflected in the inclusion of these compounds in the 2020 and 2022 European Surface Water Watch Lists. Therefore, it is necessary to develop efficient processes that allow their removal sustainably. This work applies liquid-liquid extraction using terpenes as green solvents and terpene-based eutectic solvents to remove azole fungicides from aqueous streams imazalil, metconozale, penconazole, prochloraz, and tebuconazole. First, an initial screening was performed by molecular simulation using the COSMO-RS method. The selected solvents were applied in the individual extraction of azole fungicides, and selecting the solvents thymol+octanoic acid and carvacrol. These solvents have been tested in studies with surface water matrix on the effect of temperature, initial concentration, and pH on extraction performance. From these results, it has been shown that carvacrol is the solvent that is least affected by these variables and obtains extraction yields higher than 97.88%, with a Solvent/Feed ratio up to 0.050, outperforming the conventional solvent methyl isobutyl ketone. This solvent has been used in solvent reuse cycles obtaining a reduction of less than 1% in three extraction cycles. Therefore, carvacrol is presented as a sustainable solvent for the extraction of azole fungicides from aqueous environments.
PB Elsevier
SN 2213-3437
YR 2023
FD 2023-10
LK https://hdl.handle.net/20.500.14352/105824
UL https://hdl.handle.net/20.500.14352/105824
LA eng
NO Diego Rodríguez-Llorente, Enrique García-Fernández de la Puente, Juan García, Marcos Larriba, Novel approach for azole fungicides extraction from aqueous environments using terpenes and eutectic solvents, Journal of Environmental Chemical Engineering, Volume 11, Issue 5, 2023, 110562, ISSN 2213-3437, https://doi.org/10.1016/j.jece.2023.110562
DS Docta Complutense
RD 12 abr 2025