Biosorption of heavy metals by the bacterial exopolysaccharide fucopol

Detalhes bibliográficos
Autor(a) principal: Concórdio-Reis, Patrícia
Data de Publicação: 2020
Outros Autores: Reis, Maria A. M., Freitas, Filomena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/111965
Resumo: FCT/MCTES (UIDB/04378/2020). Patricia Concordio-Reis acknowledges FCT/MCTES for PhD grant SFRH/BD/131947/2017.
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spelling Biosorption of heavy metals by the bacterial exopolysaccharide fucopolBiosorbentBiosorptionEnterobacter A47ExopolysaccharideFucopolHeavy metalsWater/wastewaterMaterials Science(all)InstrumentationEngineering(all)Process Chemistry and TechnologyComputer Science ApplicationsFluid Flow and Transfer ProcessesFCT/MCTES (UIDB/04378/2020). Patricia Concordio-Reis acknowledges FCT/MCTES for PhD grant SFRH/BD/131947/2017.Despite the efforts for minimizing the usage of heavy metals, anthropogenic activities still generate high amounts of wastewater containing these contaminants that cause significant health and environmental problems. Given the drawbacks of the conventional physical and chemical methods currently used, natural biosorbents (microbial cells or their products) arise as promising environmentally friendly alternatives. In this study, the binding efficiency of the polysaccharide secreted by Enterobacter A47, FucoPol, towards lead (Pb2+), cobalt (Co2+), copper (Cu2+) and zinc (Zn2+) cations was demonstrated. FucoPol revealed a higher performance for the biosorption of Pb2+, with a maximum overall metal removal of 93.9 ± 5.3% and a specific metal uptake of 41.1 ± 2.3 mg/gEPS, from a Pb2+ solution with an initial concentration of 10 mg/L, by a 5 g/L FucoPol solution. The overall metal removal decreased considerably (≤31.3 ± 1.6%) for higher Pb2+ concentrations (48 and 100 mg/L) probably due to the saturation of FucoPol's binding sites. Pb2+ removal was also less efficient (66.0 ± 8.2%) when a higher FucoPol concentration (10 g/L) was tested. Pb2+ removal efficiency of FucoPol was maximized at pH 4.3, however, it was affected by lower pH values (2.5-3.3). Moreover, the FucoPol's sorption performance was unaffected (overall metal removal: 91.6-93.9%) in the temperature range of 5-40 °C. These findings demonstrate FucoPol's great potential for utilization as a biodegradable and safe biosorbent for treating waters and wastewaters contaminated with Pb2+.UCIBIO - Applied Molecular Biosciences UnitDQ - Departamento de QuímicaRUNConcórdio-Reis, PatríciaReis, Maria A. M.Freitas, Filomena2021-02-16T23:29:59Z2020-10-012020-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/111965eng2076-3417PURE: 27350184https://doi.org/10.3390/APP10196708info: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:RCAAP2024-03-11T04:55:43Zoai:run.unl.pt:10362/111965Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:42:02.257565Repositório 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 heavy metals by the bacterial exopolysaccharide fucopol
title Biosorption of heavy metals by the bacterial exopolysaccharide fucopol
spellingShingle Biosorption of heavy metals by the bacterial exopolysaccharide fucopol
Concórdio-Reis, Patrícia
Biosorbent
Biosorption
Enterobacter A47
Exopolysaccharide
Fucopol
Heavy metals
Water/wastewater
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
title_short Biosorption of heavy metals by the bacterial exopolysaccharide fucopol
title_full Biosorption of heavy metals by the bacterial exopolysaccharide fucopol
title_fullStr Biosorption of heavy metals by the bacterial exopolysaccharide fucopol
title_full_unstemmed Biosorption of heavy metals by the bacterial exopolysaccharide fucopol
title_sort Biosorption of heavy metals by the bacterial exopolysaccharide fucopol
author Concórdio-Reis, Patrícia
author_facet Concórdio-Reis, Patrícia
Reis, Maria A. M.
Freitas, Filomena
author_role author
author2 Reis, Maria A. M.
Freitas, Filomena
author2_role author
author
dc.contributor.none.fl_str_mv UCIBIO - Applied Molecular Biosciences Unit
DQ - Departamento de Química
RUN
dc.contributor.author.fl_str_mv Concórdio-Reis, Patrícia
Reis, Maria A. M.
Freitas, Filomena
dc.subject.por.fl_str_mv Biosorbent
Biosorption
Enterobacter A47
Exopolysaccharide
Fucopol
Heavy metals
Water/wastewater
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
topic Biosorbent
Biosorption
Enterobacter A47
Exopolysaccharide
Fucopol
Heavy metals
Water/wastewater
Materials Science(all)
Instrumentation
Engineering(all)
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes
description FCT/MCTES (UIDB/04378/2020). Patricia Concordio-Reis acknowledges FCT/MCTES for PhD grant SFRH/BD/131947/2017.
publishDate 2020
dc.date.none.fl_str_mv 2020-10-01
2020-10-01T00:00:00Z
2021-02-16T23:29:59Z
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/10362/111965
url http://hdl.handle.net/10362/111965
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2076-3417
PURE: 27350184
https://doi.org/10.3390/APP10196708
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
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