Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge

Detalhes bibliográficos
Autor(a) principal: Ferreira, Vanessa R. A.
Data de Publicação: 2015
Outros Autores: Amorim, Catarina L., Cravo, Sara M., Tiritan, Maria E., Castro, Paula M. L., Afonso, Carlos M. M.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.14/17925
Resumo: Oral communication
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spelling Biosorption of fluoroquinolones by activated sludge and aerobic granules sludgeFluoroquinolonasBiosorptionOral communicationAntibiotic residues have been detected in various environmental matrices, such as surface water and even drinking water. Although present at low levels (μg/L, ng/L), many antibiotics are bioaccumulative, pseudo-persistent and can promote resistance/alterations in bacterial populations [1]. Recent studies on antibiotics removal by activated sludge (AS) and aerobic granules (AGS) show biosorption as the dominant process, determining the fate of these micropollutants [2-3]. In this work the biosorption of three widely used fluoroquinolones (FQ) - ofloxacin (OFL), norfloxacin (NOR) and ciprofloxacin (CPF) - to AS and AGS was evaluated. A High Performance Liquid Chromatography with Fluorescence Detection (HPLC-FD) method was validated and used to follow the biosorption of the target FQ. Data obtained in this study contribute to a better comprehension of FQ biosorption behavior in AS and AGS. At pH 7 AS showed better performance to biosorb OFL, NOR and CPF than AGS. The higher biosortion capacity of AS was probably due to the negative charge on its surface, evaluated by a zeta potential of -25.65 mV, at pH 7. OFL was the less biosorbed, both onto AS and AGS, because this FQ at pH 7 is mainly present in its anionic form. The equilibrium data for AS showed a better fit to the Langmuir model, while the model that presented better fit for AGS was the Freundlich model. The FQ could be desorbed from AGS at pH 3, pH 8 and pH 9 whereas at pH 4 the biosorption process was promoted.Veritati - Repositório Institucional da Universidade Católica PortuguesaFerreira, Vanessa R. A.Amorim, Catarina L.Cravo, Sara M.Tiritan, Maria E.Castro, Paula M. L.Afonso, Carlos M. M.2015-06-25T14:01:26Z2015-05-132015-05-13T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10400.14/17925engFerreira, Vanessa R. A. [et al.] - Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge. – 8th Meeting of young researchers of University of Porto IJUP`15, Porto, Portugal, 13-15 May, 2015 – In Abstract of 8th Meeting of young researchers of University of Porto IJUP`15, p.25info: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:RCAAP2024-09-06T12:13:48Zoai:repositorio.ucp.pt:10400.14/17925Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-09-06T12:13:48Repositório 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 Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
title Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
spellingShingle Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
Ferreira, Vanessa R. A.
Fluoroquinolonas
Biosorption
title_short Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
title_full Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
title_fullStr Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
title_full_unstemmed Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
title_sort Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge
author Ferreira, Vanessa R. A.
author_facet Ferreira, Vanessa R. A.
Amorim, Catarina L.
Cravo, Sara M.
Tiritan, Maria E.
Castro, Paula M. L.
Afonso, Carlos M. M.
author_role author
author2 Amorim, Catarina L.
Cravo, Sara M.
Tiritan, Maria E.
Castro, Paula M. L.
Afonso, Carlos M. M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Veritati - Repositório Institucional da Universidade Católica Portuguesa
dc.contributor.author.fl_str_mv Ferreira, Vanessa R. A.
Amorim, Catarina L.
Cravo, Sara M.
Tiritan, Maria E.
Castro, Paula M. L.
Afonso, Carlos M. M.
dc.subject.por.fl_str_mv Fluoroquinolonas
Biosorption
topic Fluoroquinolonas
Biosorption
description Oral communication
publishDate 2015
dc.date.none.fl_str_mv 2015-06-25T14:01:26Z
2015-05-13
2015-05-13T00:00:00Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.14/17925
url http://hdl.handle.net/10400.14/17925
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ferreira, Vanessa R. A. [et al.] - Biosorption of fluoroquinolones by activated sludge and aerobic granules sludge. – 8th Meeting of young researchers of University of Porto IJUP`15, Porto, Portugal, 13-15 May, 2015 – In Abstract of 8th Meeting of young researchers of University of Porto IJUP`15, p.25
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 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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