Degradation of ampicillin by combined process : adsorption and Fenton reaction

When disposed incorrectly, antibiotics can cause complex effects on environmental matrices, such as bacterial resistance. In this context, the present work investigated the degradation and mineralization of the β-lactam antibiotic ampicillin (AMP) applying a combined treatment of Fenton reaction and...

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Autores: Carvalho, Cassandra Bonfante de, Rosa, Ivan Reis, Vecchio, Paola Del, Dávila, Ivone Vanessa Jurado, Nunes, Keila Guerra Pacheco, Marcilio, Nilson Romeu, Feris, Liliana Amaral
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:Brasil
Institución:Universidade Federal do Rio Grande do Sul (UFRGS)
Repositorio:Repositório Institucional da UFRGS
Idioma:inglés
OAI Identifier:oai:www.lume.ufrgs.br:10183/281047
Acceso en línea:http://hdl.handle.net/10183/281047
Access Level:acceso abierto
Palabra clave:Fármacos : Degradação
Ampicilina
Carvão ativado
Processos fenton
Ampicillin
Mineralization
Fenton
Adsorption
Regeneration
Activated carbon
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spelling 2024-11-09T06:40:40Z20222352-1864http://hdl.handle.net/10183/281047001207964When disposed incorrectly, antibiotics can cause complex effects on environmental matrices, such as bacterial resistance. In this context, the present work investigated the degradation and mineralization of the β-lactam antibiotic ampicillin (AMP) applying a combined treatment of Fenton reaction and adsorption onto granular activated carbon (GAC). Adsorption parameters of contact time (10–210 min) and GAC dosage (5– 50 g L− 1 ) were evaluated, as well as adsorption kinetics. Both in Fenton reaction and combined process, the influence of H2O2 and Fe+2 concentrations were evaluated, using five combinations of H2O2/Fe+2 : 300/60 µM, 300/80 µM, 400/70 µM, 500/60 µM and 500/80 µM. Finally, because of the combined process, GAC regeneration was investigated in 3 cycles. Best adsorption conditions were determined as 150 minutes of contact time and GAC concentration of 20 g L−1 , reaching 57% of AMP removal and adsorbed amount of 0.58 mg g−1 . All Fenton experimental conditions led to a complete degradation of AMP within 1 min, suggesting the generation rate of hydroxyl radicals was faster in the first minutes of reaction. In the combined process, similar results for degradation were found. A higher mineralization (83%) and GAC regeneration (85%) was reached at H2O2/Fe+2 = 500/80 µM, indicating the influence of H2O2 and Fe+2 concentrations. GAC regeneration efficiency for the 3 cycles were, respectively, 84%, 71% and 49%. Thus, the results demonstrate the combined process of Fenton reaction and GAC adsorption is a feasible treatment reaching high mineralization.application/pdfengEnvironmental Technology and Innovation [recurso eletrônico]. [Amsterdam]. Vol. 26 (May 2022), art. 102365, p. 1-13Fármacos : DegradaçãoAmpicilinaCarvão ativadoProcessos fentonAmpicillinMineralizationFentonAdsorptionRegenerationActivated carbonDegradation of ampicillin by combined process : adsorption and Fenton reactionEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSCarvalho, Cassandra Bonfante deRosa, Ivan ReisVecchio, Paola DelDávila, Ivone Vanessa JuradoNunes, Keila Guerra PachecoMarcilio, Nilson RomeuFeris, Liliana AmaralTEXT001207964.pdf.txt001207964.pdf.txtExtracted Texttext/plain53487http://www.lume.ufrgs.br/bitstream/10183/281047/2/001207964.pdf.txt0a4990c81d9f21d52deaabfa78a01897MD52ORIGINAL001207964.pdfTexto completoapplication/pdf735117http://www.lume.ufrgs.br/bitstream/10183/281047/1/001207964.pdf6cb666a29569f7d977d74a85b1b904d9MD5110183/2810472024-11-10 07:52:32.370698oai:www.lume.ufrgs.br:10183/281047Repositório InstitucionalPUBhttps://lume.ufrgs.br/oai/requestlume@ufrgs.bropendoar:2024-11-10T09:52:32Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Degradation of ampicillin by combined process : adsorption and Fenton reaction
title Degradation of ampicillin by combined process : adsorption and Fenton reaction
spellingShingle Degradation of ampicillin by combined process : adsorption and Fenton reaction
Carvalho, Cassandra Bonfante de
Fármacos : Degradação
Ampicilina
Carvão ativado
Processos fenton
Ampicillin
Mineralization
Fenton
Adsorption
Regeneration
Activated carbon
title_short Degradation of ampicillin by combined process : adsorption and Fenton reaction
title_full Degradation of ampicillin by combined process : adsorption and Fenton reaction
title_fullStr Degradation of ampicillin by combined process : adsorption and Fenton reaction
title_full_unstemmed Degradation of ampicillin by combined process : adsorption and Fenton reaction
title_sort Degradation of ampicillin by combined process : adsorption and Fenton reaction
dc.creator.none.fl_str_mv Carvalho, Cassandra Bonfante de
Rosa, Ivan Reis
Vecchio, Paola Del
Dávila, Ivone Vanessa Jurado
Nunes, Keila Guerra Pacheco
Marcilio, Nilson Romeu
Feris, Liliana Amaral
author Carvalho, Cassandra Bonfante de
author_facet Carvalho, Cassandra Bonfante de
Rosa, Ivan Reis
Vecchio, Paola Del
Dávila, Ivone Vanessa Jurado
Nunes, Keila Guerra Pacheco
Marcilio, Nilson Romeu
Feris, Liliana Amaral
author_role author
author2 Rosa, Ivan Reis
Vecchio, Paola Del
Dávila, Ivone Vanessa Jurado
Nunes, Keila Guerra Pacheco
Marcilio, Nilson Romeu
Feris, Liliana Amaral
author2_role author
author
author
author
author
author
dc.subject.por.fl_str_mv Fármacos : Degradação
Ampicilina
Carvão ativado
Processos fenton
topic Fármacos : Degradação
Ampicilina
Carvão ativado
Processos fenton
Ampicillin
Mineralization
Fenton
Adsorption
Regeneration
Activated carbon
dc.subject.eng.fl_str_mv Ampicillin
Mineralization
Fenton
Adsorption
Regeneration
Activated carbon
description When disposed incorrectly, antibiotics can cause complex effects on environmental matrices, such as bacterial resistance. In this context, the present work investigated the degradation and mineralization of the β-lactam antibiotic ampicillin (AMP) applying a combined treatment of Fenton reaction and adsorption onto granular activated carbon (GAC). Adsorption parameters of contact time (10–210 min) and GAC dosage (5– 50 g L− 1 ) were evaluated, as well as adsorption kinetics. Both in Fenton reaction and combined process, the influence of H2O2 and Fe+2 concentrations were evaluated, using five combinations of H2O2/Fe+2 : 300/60 µM, 300/80 µM, 400/70 µM, 500/60 µM and 500/80 µM. Finally, because of the combined process, GAC regeneration was investigated in 3 cycles. Best adsorption conditions were determined as 150 minutes of contact time and GAC concentration of 20 g L−1 , reaching 57% of AMP removal and adsorbed amount of 0.58 mg g−1 . All Fenton experimental conditions led to a complete degradation of AMP within 1 min, suggesting the generation rate of hydroxyl radicals was faster in the first minutes of reaction. In the combined process, similar results for degradation were found. A higher mineralization (83%) and GAC regeneration (85%) was reached at H2O2/Fe+2 = 500/80 µM, indicating the influence of H2O2 and Fe+2 concentrations. GAC regeneration efficiency for the 3 cycles were, respectively, 84%, 71% and 49%. Thus, the results demonstrate the combined process of Fenton reaction and GAC adsorption is a feasible treatment reaching high mineralization.
publishDate 2022
dc.date.issued.fl_str_mv 2022
dc.date.accessioned.fl_str_mv 2024-11-09T06:40:40Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/281047
dc.identifier.issn.pt_BR.fl_str_mv 2352-1864
dc.identifier.nrb.pt_BR.fl_str_mv 001207964
identifier_str_mv 2352-1864
001207964
url http://hdl.handle.net/10183/281047
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Environmental Technology and Innovation [recurso eletrônico]. [Amsterdam]. Vol. 26 (May 2022), art. 102365, p. 1-13
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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