Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps

In this study, photo-Fenton treatment was performed to remove a target compound (propranolol, PROP) from wastewaters of secondary effluents coming from WWTP. Two different radiation sources were tested: BLB and UV-A LEDs, which implies low electrical power and no mercury content. The differences obs...

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Autores: López Vinent, Núria, Cruz Alcalde, Alberto, Gutiérrez, C., Marco Buj, Pilar, Giménez Farreras, Jaume, Esplugas Vidal, Santiago
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/185600
Acesso em linha:https://hdl.handle.net/2445/185600
Access Level:acceso abierto
Palavra-chave:Díodes electroluminescents
Quelants
Contaminants
Light emitting diodes
Chelating agents
Pollutants
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spelling Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lampsLópez Vinent, NúriaCruz Alcalde, AlbertoGutiérrez, C.Marco Buj, PilarGiménez Farreras, JaumeEsplugas Vidal, SantiagoDíodes electroluminescentsQuelantsContaminantsLight emitting diodesChelating agentsPollutantsIn this study, photo-Fenton treatment was performed to remove a target compound (propranolol, PROP) from wastewaters of secondary effluents coming from WWTP. Two different radiation sources were tested: BLB and UV-A LEDs, which implies low electrical power and no mercury content. The differences observed in the PROP removal with both lamps may be due to the different radiation distribution, absorption inside the reactor, emission angle and wavelength emission, which are key parameters in the radiation field of the photoreactor. Four wastewaters (IFAS, MBR, CAS and CAS-NE) and ultrapure water were tested to determine the influence of water matrix. Instead the propranolol degradation using UV-A LEDs was smaller than using BLB lamps, in ultrapure water the degradation was very similar. The matrices with more organic matter and turbidity achieved low propranolol removals due to the competition for hydroxyl radicals and the effect of the light scattering. In addition, photo-Fenton at neutral pH (to avoid the acidification/basification) was also carried out using two chelating agents (EDDS and EDTA). Two molar ratios ligand-Fe(II) were tested (1:1 and 1.5:1). EDDS with L:Fe(II) molar ratio 1:1 was selected based on studies of MP degradation, biodegradability and toxicity. Comparisons between conventional photo-Fenton and photo-Fenton with EDDS-Fe(II) were performed with UV-A LEDs. For Milli-Q and IFAS best results were achieved in conventional photo-Fenton (32.9% for IFAS instead of 14.3% in EDDS-Fe(II)). Contrary, for the MBR, CAS and CAS-NE the best results were shown for EDDS-Fe(II) photo-Fenton. In IFAS, biopolymers and humic substances were the responsible of the different behavior of IFAS than other WW. Finally, for conventional photo-Fenton, dark Fenton plays an important role during the first 30 s, then, photo-Fenton controls the process. For circumneutral photo-Fenton, dark Fenton is not so important during the initial time. These observations have been corroborated by different kinetic fittings for different reaction times.Elsevier B.V.2022202220202022info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/185600Articles publicats en revistes (Enginyeria Química i Química Analítica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.cej.2019.122416Chemical Engineering Journal, 2020, vol. 379https://doi.org/10.1016/j.cej.2019.122416cc-by-nc-nd (c) Elsevier B.V., 2020https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1856002026-05-29T05:05:01Z
dc.title.none.fl_str_mv Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
title Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
spellingShingle Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
López Vinent, Núria
Díodes electroluminescents
Quelants
Contaminants
Light emitting diodes
Chelating agents
Pollutants
title_short Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
title_full Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
title_fullStr Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
title_full_unstemmed Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
title_sort Micropollutant removal in real WW by photo-Fenton (circumneutral and acid pH) with BLB and LED lamps
dc.creator.none.fl_str_mv López Vinent, Núria
Cruz Alcalde, Alberto
Gutiérrez, C.
Marco Buj, Pilar
Giménez Farreras, Jaume
Esplugas Vidal, Santiago
author López Vinent, Núria
author_facet López Vinent, Núria
Cruz Alcalde, Alberto
Gutiérrez, C.
Marco Buj, Pilar
Giménez Farreras, Jaume
Esplugas Vidal, Santiago
author_role author
author2 Cruz Alcalde, Alberto
Gutiérrez, C.
Marco Buj, Pilar
Giménez Farreras, Jaume
Esplugas Vidal, Santiago
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Díodes electroluminescents
Quelants
Contaminants
Light emitting diodes
Chelating agents
Pollutants
topic Díodes electroluminescents
Quelants
Contaminants
Light emitting diodes
Chelating agents
Pollutants
description In this study, photo-Fenton treatment was performed to remove a target compound (propranolol, PROP) from wastewaters of secondary effluents coming from WWTP. Two different radiation sources were tested: BLB and UV-A LEDs, which implies low electrical power and no mercury content. The differences observed in the PROP removal with both lamps may be due to the different radiation distribution, absorption inside the reactor, emission angle and wavelength emission, which are key parameters in the radiation field of the photoreactor. Four wastewaters (IFAS, MBR, CAS and CAS-NE) and ultrapure water were tested to determine the influence of water matrix. Instead the propranolol degradation using UV-A LEDs was smaller than using BLB lamps, in ultrapure water the degradation was very similar. The matrices with more organic matter and turbidity achieved low propranolol removals due to the competition for hydroxyl radicals and the effect of the light scattering. In addition, photo-Fenton at neutral pH (to avoid the acidification/basification) was also carried out using two chelating agents (EDDS and EDTA). Two molar ratios ligand-Fe(II) were tested (1:1 and 1.5:1). EDDS with L:Fe(II) molar ratio 1:1 was selected based on studies of MP degradation, biodegradability and toxicity. Comparisons between conventional photo-Fenton and photo-Fenton with EDDS-Fe(II) were performed with UV-A LEDs. For Milli-Q and IFAS best results were achieved in conventional photo-Fenton (32.9% for IFAS instead of 14.3% in EDDS-Fe(II)). Contrary, for the MBR, CAS and CAS-NE the best results were shown for EDDS-Fe(II) photo-Fenton. In IFAS, biopolymers and humic substances were the responsible of the different behavior of IFAS than other WW. Finally, for conventional photo-Fenton, dark Fenton plays an important role during the first 30 s, then, photo-Fenton controls the process. For circumneutral photo-Fenton, dark Fenton is not so important during the initial time. These observations have been corroborated by different kinetic fittings for different reaction times.
publishDate 2020
dc.date.none.fl_str_mv 2020
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/185600
url https://hdl.handle.net/2445/185600
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.cej.2019.122416
Chemical Engineering Journal, 2020, vol. 379
https://doi.org/10.1016/j.cej.2019.122416
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier B.V., 2020
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier B.V., 2020
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Química i Química Analítica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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