Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation

Detalhes bibliográficos
Autor(a) principal: Magro, C.
Data de Publicação: 2020
Outros Autores: Mateus, E. P., Paz-Garcia, J. M., Ribeiro, A. B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/90874
Resumo: UID/AMB/04085/2019 UID/FIS/00068/2019 PTDC/FIS-NAN/0909/2014 SFRH/BD/114674/2016 CTQ2017-90659-REDT (MCIUN, Spain). FEDER Andalucia 2014–2020” – UMA18-FEDERJA-279.
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spelling Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradationEmerging organic contaminantsTriclosanBy-productsElectrochemical processElectrokineticsElectro-degradationEnvironmental EngineeringEnvironmental ChemistryChemistry(all)PollutionPublic Health, Environmental and Occupational HealthHealth, Toxicology and MutagenesisSDG 6 - Clean Water and SanitationUID/AMB/04085/2019 UID/FIS/00068/2019 PTDC/FIS-NAN/0909/2014 SFRH/BD/114674/2016 CTQ2017-90659-REDT (MCIUN, Spain). FEDER Andalucia 2014–2020” – UMA18-FEDERJA-279.Degradation technologies applied to emerging organic contaminants from human activities are one of the major water challenges in the contamination legacy. Triclosan is an emerging contaminant, commonly used as antibacterial agent in personal care products. Triclosan is stable, lipophilic and it is proved to have ecotoxicology effects in organics. This induces great concern since its elimination in wastewater treatment plants is not efficient and its by-products (e.g. methyl-triclosan, 2,4-dichlorophenol or 2,4,6-trichlorophenol) are even more hazardous to several environmental compartments. This work provides understanding of two different electrochemical reactors for the degradation of triclosan and its derivative by-products in effluent. A batch reactor and a flow reactor (mimicking a secondary settling tank in a wastewater treatment plant) were tested with two different working anodes: Ti/MMO and Nb/BDD. The degradation efficiency and kinetics were evaluated to find the best combination of current density, electrodes and set-up design. For both reactors the best electrode combination was achieved with Ti/MMO as anode. The batch reactor at 7 mA/cm2 during 4 h attained degradation rates below the detection limit for triclosan and 2,4,6-trichlorophenol and, 94% and 43% for 2,4-dichlorophenol and methyl triclosan, respectively. The flow reactor obtained, in approximately 1 h, degradation efficiencies between 41% and 87% for the four contaminants. This study suggests an alternative technology for emerging organic contaminants degradation, since the combination of a low current density with the flow and matrix induced disturbance increases and speeds up the compounds’ elimination in a real environmental matrix.DCEA - Departamento de Ciências e Engenharia do AmbienteCENSE - Centro de Investigação em Ambiente e SustentabilidadeRUNMagro, C.Mateus, E. P.Paz-Garcia, J. M.Ribeiro, A. B.2023-09-01T00:31:02Z2020-052020-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/octet-streamhttp://hdl.handle.net/10362/90874eng0045-6535PURE: 16214067https://doi.org/10.1016/j.chemosphere.2019.125758info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-22T17:42:47Zoai:run.unl.pt:10362/90874Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-22T17:42:47Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
title Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
spellingShingle Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
Magro, C.
Emerging organic contaminants
TriclosanBy-products
Electrochemical process
Electrokinetics
Electro-degradation
Environmental Engineering
Environmental Chemistry
Chemistry(all)
Pollution
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis
SDG 6 - Clean Water and Sanitation
title_short Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
title_full Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
title_fullStr Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
title_full_unstemmed Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
title_sort Emerging organic contaminants in wastewater: Understanding electrochemical reactors for triclosan and its by-products degradation
author Magro, C.
author_facet Magro, C.
Mateus, E. P.
Paz-Garcia, J. M.
Ribeiro, A. B.
author_role author
author2 Mateus, E. P.
Paz-Garcia, J. M.
Ribeiro, A. B.
author2_role author
author
author
dc.contributor.none.fl_str_mv DCEA - Departamento de Ciências e Engenharia do Ambiente
CENSE - Centro de Investigação em Ambiente e Sustentabilidade
RUN
dc.contributor.author.fl_str_mv Magro, C.
Mateus, E. P.
Paz-Garcia, J. M.
Ribeiro, A. B.
dc.subject.por.fl_str_mv Emerging organic contaminants
TriclosanBy-products
Electrochemical process
Electrokinetics
Electro-degradation
Environmental Engineering
Environmental Chemistry
Chemistry(all)
Pollution
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis
SDG 6 - Clean Water and Sanitation
topic Emerging organic contaminants
TriclosanBy-products
Electrochemical process
Electrokinetics
Electro-degradation
Environmental Engineering
Environmental Chemistry
Chemistry(all)
Pollution
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis
SDG 6 - Clean Water and Sanitation
description UID/AMB/04085/2019 UID/FIS/00068/2019 PTDC/FIS-NAN/0909/2014 SFRH/BD/114674/2016 CTQ2017-90659-REDT (MCIUN, Spain). FEDER Andalucia 2014–2020” – UMA18-FEDERJA-279.
publishDate 2020
dc.date.none.fl_str_mv 2020-05
2020-05-01T00:00:00Z
2023-09-01T00:31:02Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/90874
url http://hdl.handle.net/10362/90874
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0045-6535
PURE: 16214067
https://doi.org/10.1016/j.chemosphere.2019.125758
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/octet-stream
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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