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| DOI | 10.3390/W11122515 | ||||
| Año | 2019 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
The aim of this study is to compare the removal of organic micropollutants (OMPs) in wastewater by activated sludge (AS) and constructed wetlands (CWs). This analysis was carried out in a wastewater treatment plant (WWTP) of a rural community where they implemented two technologies in parallel: AS and a pilot plant of horizontal subsurface flow (HSSF) constructed wetlands. In this case, these systems were fed by the same influent and the removal efficiencies of 14 OMPs, including analgesics/anti-inflammatories, anticonvulsants, stimulants, antifungals, fragrances, plasticizers, and transformation products, were evaluated in each system. Regarding the presence of OMPs in the wastewater, the concentrations of these compounds in the influent ranged from 0.16 to 7.75 mu g/L. In general, the removal efficiencies achieved by the AS system were between 10%-95% higher than those values reported by HSSFs with values above 80% for naproxen, ibuprofen, diclofenac, caffeine, triclosan, methyl dihydrojasmonate, bisphenol-A, 2-hydroxyl ibuprofen, and carboxy ibuprofen (p < 0.05). This behavior can be related to the aerobic conditions that promote the AS system with oxidation-reduction potential (ORP) and dissolved oxygen (DO) values above -281 mV and 0.24 mg/L, respectively. However, the removal of galaxolide was greater in HSSF system than in AS with significant difference of 70% (p < 0.05). Despite these results, this study reveals that comparing both technologies, AS had the best removal performance of these OMPs studied.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Contreras, Carolina Reyes | Mujer |
Universidad de Concepción - Chile
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| 1 | Reyes Contreras, C. | - |
Universidad de Concepción - Chile
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| 2 | LOPEZ-LEYTON, DANIELA ANDREA | Mujer |
Universidad de Concepción - Chile
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| 3 | LEIVA-MATURANA, ANA MARIA | Mujer |
Universidad de Concepción - Chile
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| 4 | Dominguez, C. | Mujer |
IDAEA - España
Universidad de Concepción - Chile CSIC - Instituto de Diagnostico Ambiental y Estudios del Agua (IDAEA) - España |
| 5 | Bayona, Josep M. | Hombre |
IDAEA - España
CSIC - Instituto de Diagnostico Ambiental y Estudios del Agua (IDAEA) - España |
| 6 | VIDAL-SAEZ, GLADYS CECILIA | Mujer |
Universidad de Concepción - Chile
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| Fuente |
|---|
| CONICYT |
| CONICYT-PFCHA |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| CONICYT-PFCHA/Doctorado |
| Fondo Nacional de Desarrollo CientÃfico y Tecnológico |
| DOCTORADO |
| University of Concepci?n |
| Agradecimiento |
|---|
| This research was funded by CONICYT, grants: FONDECYT Postdoctoral 3140162, CONICYT-PFCHA/Doctorado Nacional/2019-21191116 and CONICYT/FONDAP/15130015. |
| This research was funded by CONICYT, grants: FONDECYT Postdoctoral 3140162, CONICYT-PFCHA/Doctorado Nacional/2019-21191116 and CONICYT/FONDAP/15130015 This study was funded by the following grants: FONDECYT Postdoctoral 3140162 and CONICYT/FONDAP/15130015. A.M.L. thanks CONICYT for her Scholarship Program CONICYT-PFCHA/Doctorado Nacional/2019-21191116, for supporting her Ph. D. studies at the University of Concepci?n. |