Degradation of seventeen contaminants of emerging concern in municipal wastewater effluents by sonochemical advanced oxidation processes
Impacto
Scholar |
Otros documentos de la autoría: Serna-Galvis, Efraim A.; Botero-Coy, Ana Maria; Martínez-Pachón, Diana; Moncayo-Lasso, Alejandro; Ibáñez, Maria; Hernandez, Felix; Torres-Palma, Ricardo A.
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/33596
comunitat-uji-handle3:10234/33597
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Degradation of seventeen contaminants of emerging concern in municipal wastewater effluents by sonochemical advanced oxidation processesAutoría
Fecha de publicación
2019Editor
ElsevierISSN
0043-1354; 1879-2448Cita bibliográfica
Serna-Galvis, Efraim A., et al. "Degradation of seventeen contaminants of emerging concern in municipal wastewater effluents by sonochemical advanced oxidation processes." Water research, 2019, vol. 154, p. 349-360Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0043135419300995Versión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
The simultaneous degradation of seventeen emerging concern pollutants in effluent
from the municipal wastewater treatment plant (MWTP) of Bogotá-Colombia was
studied using high frequency ultrasound (375 kHz). The ... [+]
The simultaneous degradation of seventeen emerging concern pollutants in effluent
from the municipal wastewater treatment plant (MWTP) of Bogotá-Colombia was
studied using high frequency ultrasound (375 kHz). The considered compounds in the
effluent corresponded to pharmaceuticals (diclofenac, carbamazepine, venlafaxine,
ciprofloxacin, norfloxacin, valsartan, losartan, irbesartan, sulfamethoxazole,
clarithromycin, azithromycin, erythromycin, metronidazole, trimethoprim and the high potentiality of the sono-photo-Fenton/oxalic acid system for the pollutants
elimination in real-world wastewater matrices.
clindamycin); cocaine and its major metabolite benzoylecgonine. Due to limitation of the
MWTP for the pollutants elimination, ultrasound was applied to remove these
compounds. Interestingly, ultrasonic physical action led to releasing of ciprofloxacin,
norfloxacin, diclofenac and sulfamethoxazole from suspended solids, whereas the
chemical effects induced degradation of the rest of compounds. For the latter ones, an
interesting correlation between the sonodegradation and arithmetic multiplication
between hydrophobicity and concentration of pollutants was established. Afterwards,
the sonochemical process was complemented with ferrous ions (sono-Fenton), ferrous
ions plus light (sono-photo-Fenton) or ferrous ions plus light in presence of oxalic acid
(sono-photo-Fenton/oxalic acid). Additionally, to clarify fundamental aspects of the
different systems, individual treatments in distilled water of a model pollutant (valsartan)
were performed. The complemented processes significantly enhanced all compounds
degradation, following the order: sono-photo-Fenton/oxalic acid > sono-photo-Fenton ~
sono-Fenton > sonochemistry. The Fe2+ addition improved the pollutants elimination by
generation of more hydroxyl radicals in the solution bulk. Meanwhile, oxalic acid
avoided Fe3+ precipitation favoring the iron catalytic cycle. Thus, the work demonstrates [-]
Publicado en
Water research, 2019, vol. 154, p. 349-360Proyecto de investigación
The authors thank Universidad de Antioquia UdeA for the support provided to their research group through “Programa de Sostenibilidad” and the financing from COLCIENCIAS through the projects No. 111577757323 (Convocatoria 777 de 2017) and No. 123371552034 (Convocatoria 715 de 2015). The authors from UJI acknowledge the financial support from Generalitat Valenciana (Research Group of Excellence, PrometeoII/2014/023). E.A. Serna-Galvis thanks COLCIENCIAS his doctoral scholarship (Convocatoria 647 de 2014).Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- QFA_Articles [819]
- IUPA_Articles [307]