Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jece.2021.105761 http://hdl.handle.net/11449/207839 |
Resumo: | In this study, the degradation of three antibiotics - sulfamethazine (SMT), sulfathiazole (STZ), and norfloxacin (NOR) (1.0 mg L-1 each) - was achieved by coupling the Zero-Valent Iron Process using supported metallic iron nanoparticles (nZVI) to the Fenton one. The system was operated in single-pass continuous-flow mode at steady-state regime (after 15 min). The nanoparticles were packed into a fixed-bed reactor and characterized by several techniques (SEM, EDX, TEM, and XRD). The degradation experiments were performed according to a 22 factorial design, in which the effects of pH and flow rate (Q) were studied. The degradation conditions were: initial pH = 3.0 and Q = 20 mL min-1· H2O2 was then continuously added to the effluent of the nZVI reactor (containing Fe2+) in order to perform the Fenton process in the following mixing vessel (H2O2 concentration of 34 mg L-1). At the exit of the system, the antibiotics concentrations were below the detection limit of the chromatographic method (40 μg L-1) and dissolved iron was below 1.0 mg L-1. Sixteen degradation products (DPs) of SMT, STZ, and NOR were detected and identified using HPLC-MS/MS. Their ecotoxicological endpoints (LC50, EC50, and ChV) for three trophic levels were estimated with the aid of the ECOSAR 2.0 software. No ecotoxicity was generated towards Lactuca sativa during treatment. The proposed system was able to partially remove the antimicrobial activity (Escherichia coli) of both sulfonamides (16%) and NOR (47%). |
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Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacinAntibioticsAntimicrobial activityAOPNanoparticlesZVIIn this study, the degradation of three antibiotics - sulfamethazine (SMT), sulfathiazole (STZ), and norfloxacin (NOR) (1.0 mg L-1 each) - was achieved by coupling the Zero-Valent Iron Process using supported metallic iron nanoparticles (nZVI) to the Fenton one. The system was operated in single-pass continuous-flow mode at steady-state regime (after 15 min). The nanoparticles were packed into a fixed-bed reactor and characterized by several techniques (SEM, EDX, TEM, and XRD). The degradation experiments were performed according to a 22 factorial design, in which the effects of pH and flow rate (Q) were studied. The degradation conditions were: initial pH = 3.0 and Q = 20 mL min-1· H2O2 was then continuously added to the effluent of the nZVI reactor (containing Fe2+) in order to perform the Fenton process in the following mixing vessel (H2O2 concentration of 34 mg L-1). At the exit of the system, the antibiotics concentrations were below the detection limit of the chromatographic method (40 μg L-1) and dissolved iron was below 1.0 mg L-1. Sixteen degradation products (DPs) of SMT, STZ, and NOR were detected and identified using HPLC-MS/MS. Their ecotoxicological endpoints (LC50, EC50, and ChV) for three trophic levels were estimated with the aid of the ECOSAR 2.0 software. No ecotoxicity was generated towards Lactuca sativa during treatment. The proposed system was able to partially remove the antimicrobial activity (Escherichia coli) of both sulfonamides (16%) and NOR (47%).University of São Paulo (USP) São Carlos Institute of Chemistry Laboratório de Desenvolvimento de Tecnologias Ambientais (LDTAmb), Avenida Trabalhador São-Carlense, 400São Paulo State University (UNESP) Araraquara Chemistry Institute Departamento de Química Analítica, Rua Prof. Francisco Degni, 55University of São Paulo (USP) São Carlos Institute of Chemistry Grupo de Fotosensibilizadores, Avenida Trabalhador São-Carlense, 400University of São Paulo (USP) São Carlos Institute of Chemistry Grupo de Química Analítica Ambiental e Ecotoxicologia, Avenida Trabalhador São-Carlense, 400São Paulo State University (UNESP) Araraquara Chemistry Institute Departamento de Química Analítica, Rua Prof. Francisco Degni, 55Universidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Fornazaria, Ana LuizaLabriola, Vanessa FeltrinDa Silva, Bianca Ferreira [UNESP]Castro, Lucas FernandesPerussi, Janice RodriguesVieira, Eny MariaAzevedo, Eduardo Bessa2021-06-25T11:01:56Z2021-06-25T11:01:56Z2021-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jece.2021.105761Journal of Environmental Chemical Engineering, v. 9, n. 4, 2021.2213-3437http://hdl.handle.net/11449/20783910.1016/j.jece.2021.1057612-s2.0-85107435249Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Environmental Chemical Engineeringinfo:eu-repo/semantics/openAccess2021-10-23T17:46:00Zoai:repositorio.unesp.br:11449/207839Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:59:39.909266Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin |
title |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin |
spellingShingle |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin Fornazaria, Ana Luiza Antibiotics Antimicrobial activity AOP Nanoparticles ZVI |
title_short |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin |
title_full |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin |
title_fullStr |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin |
title_full_unstemmed |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin |
title_sort |
Coupling Zero-Valent Iron and Fenton processes for degrading sulfamethazine, sulfathiazole, and norfloxacin |
author |
Fornazaria, Ana Luiza |
author_facet |
Fornazaria, Ana Luiza Labriola, Vanessa Feltrin Da Silva, Bianca Ferreira [UNESP] Castro, Lucas Fernandes Perussi, Janice Rodrigues Vieira, Eny Maria Azevedo, Eduardo Bessa |
author_role |
author |
author2 |
Labriola, Vanessa Feltrin Da Silva, Bianca Ferreira [UNESP] Castro, Lucas Fernandes Perussi, Janice Rodrigues Vieira, Eny Maria Azevedo, Eduardo Bessa |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Fornazaria, Ana Luiza Labriola, Vanessa Feltrin Da Silva, Bianca Ferreira [UNESP] Castro, Lucas Fernandes Perussi, Janice Rodrigues Vieira, Eny Maria Azevedo, Eduardo Bessa |
dc.subject.por.fl_str_mv |
Antibiotics Antimicrobial activity AOP Nanoparticles ZVI |
topic |
Antibiotics Antimicrobial activity AOP Nanoparticles ZVI |
description |
In this study, the degradation of three antibiotics - sulfamethazine (SMT), sulfathiazole (STZ), and norfloxacin (NOR) (1.0 mg L-1 each) - was achieved by coupling the Zero-Valent Iron Process using supported metallic iron nanoparticles (nZVI) to the Fenton one. The system was operated in single-pass continuous-flow mode at steady-state regime (after 15 min). The nanoparticles were packed into a fixed-bed reactor and characterized by several techniques (SEM, EDX, TEM, and XRD). The degradation experiments were performed according to a 22 factorial design, in which the effects of pH and flow rate (Q) were studied. The degradation conditions were: initial pH = 3.0 and Q = 20 mL min-1· H2O2 was then continuously added to the effluent of the nZVI reactor (containing Fe2+) in order to perform the Fenton process in the following mixing vessel (H2O2 concentration of 34 mg L-1). At the exit of the system, the antibiotics concentrations were below the detection limit of the chromatographic method (40 μg L-1) and dissolved iron was below 1.0 mg L-1. Sixteen degradation products (DPs) of SMT, STZ, and NOR were detected and identified using HPLC-MS/MS. Their ecotoxicological endpoints (LC50, EC50, and ChV) for three trophic levels were estimated with the aid of the ECOSAR 2.0 software. No ecotoxicity was generated towards Lactuca sativa during treatment. The proposed system was able to partially remove the antimicrobial activity (Escherichia coli) of both sulfonamides (16%) and NOR (47%). |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:01:56Z 2021-06-25T11:01:56Z 2021-08-01 |
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://dx.doi.org/10.1016/j.jece.2021.105761 Journal of Environmental Chemical Engineering, v. 9, n. 4, 2021. 2213-3437 http://hdl.handle.net/11449/207839 10.1016/j.jece.2021.105761 2-s2.0-85107435249 |
url |
http://dx.doi.org/10.1016/j.jece.2021.105761 http://hdl.handle.net/11449/207839 |
identifier_str_mv |
Journal of Environmental Chemical Engineering, v. 9, n. 4, 2021. 2213-3437 10.1016/j.jece.2021.105761 2-s2.0-85107435249 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Environmental Chemical Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129271657398272 |