Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/24291 |
Resumo: | The performance of two bacteria, Arthrobacter viscosus and Streptococcus equisimilis, and the effect of the interaction of these bacteria with four different clays on the retention of diethylketone were investigated in batch experiments. The uptake, the removal percentages and the kinetics of the processes were determined. S. equisimilis,by itself, had the best performance in terms of removal percentage, for all the initial diethylketone concentrations tested: 200, 350 and 700 mg/L. The uptake values are similar for both bacteria. A possible mechanism to explain the removal of diethylketone includes its degradation by bacteria, followed by the adsorption of the intermediates/sub-products by the functional groups present on the cells surfaces. The assays performed with bacteria and clays indicated that the uptake values are similar despite of the clay used, for the same microorganism and mass of clay, but in general higher values are reached when S. equisimilis is used, compared to A. viscosus. Kinetic data were described by pseudo-first and pseudo-second order models. |
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Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studiesEnvironmental scienceBiodegradationBacteriaBentoniteDiethylketoneKaolinSepioliteVermiculiteScience & TechnologyThe performance of two bacteria, Arthrobacter viscosus and Streptococcus equisimilis, and the effect of the interaction of these bacteria with four different clays on the retention of diethylketone were investigated in batch experiments. The uptake, the removal percentages and the kinetics of the processes were determined. S. equisimilis,by itself, had the best performance in terms of removal percentage, for all the initial diethylketone concentrations tested: 200, 350 and 700 mg/L. The uptake values are similar for both bacteria. A possible mechanism to explain the removal of diethylketone includes its degradation by bacteria, followed by the adsorption of the intermediates/sub-products by the functional groups present on the cells surfaces. The assays performed with bacteria and clays indicated that the uptake values are similar despite of the clay used, for the same microorganism and mass of clay, but in general higher values are reached when S. equisimilis is used, compared to A. viscosus. Kinetic data were described by pseudo-first and pseudo-second order models.The authors would like to gratefully acknowledge the financial support of this project by the Fundacao para a Ciencia e Tecnologia, Ministerio da Ciencia e Tecnologia, Portugal and co-funding by FSE (programme QREN-POPH). Cristina Quintelas thanks FCT for a post-doc grant. The authors would like also to thank Minas de Barqueiros, S. A., Prof. Rui Boaventura (FEUP-Portugal) and Prof. Isabel Correia Neves (Dep Quimica, UM, Portugal) who gently offered the clays.SpringerKluwer Academic PublishersUniversidade do MinhoQuintelas, C.Costa, FilomenaTavares, M. T.20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/24291eng0944-13440944-134410.1007/s11356-012-1055-122752815info: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:RCAAP2024-03-16T01:19:48Zoai:repositorium.sdum.uminho.pt:1822/24291Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:37:54.617487Repositório 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 |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies |
title |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies |
spellingShingle |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies Quintelas, C. Environmental science Biodegradation Bacteria Bentonite Diethylketone Kaolin Sepiolite Vermiculite Science & Technology |
title_short |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies |
title_full |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies |
title_fullStr |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies |
title_full_unstemmed |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies |
title_sort |
Bioremoval of diethylketone by the synergistic combination of microorganisms and clays: uptake, removal and kinetic studies |
author |
Quintelas, C. |
author_facet |
Quintelas, C. Costa, Filomena Tavares, M. T. |
author_role |
author |
author2 |
Costa, Filomena Tavares, M. T. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Quintelas, C. Costa, Filomena Tavares, M. T. |
dc.subject.por.fl_str_mv |
Environmental science Biodegradation Bacteria Bentonite Diethylketone Kaolin Sepiolite Vermiculite Science & Technology |
topic |
Environmental science Biodegradation Bacteria Bentonite Diethylketone Kaolin Sepiolite Vermiculite Science & Technology |
description |
The performance of two bacteria, Arthrobacter viscosus and Streptococcus equisimilis, and the effect of the interaction of these bacteria with four different clays on the retention of diethylketone were investigated in batch experiments. The uptake, the removal percentages and the kinetics of the processes were determined. S. equisimilis,by itself, had the best performance in terms of removal percentage, for all the initial diethylketone concentrations tested: 200, 350 and 700 mg/L. The uptake values are similar for both bacteria. A possible mechanism to explain the removal of diethylketone includes its degradation by bacteria, followed by the adsorption of the intermediates/sub-products by the functional groups present on the cells surfaces. The assays performed with bacteria and clays indicated that the uptake values are similar despite of the clay used, for the same microorganism and mass of clay, but in general higher values are reached when S. equisimilis is used, compared to A. viscosus. Kinetic data were described by pseudo-first and pseudo-second order models. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2013-01-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/24291 |
url |
https://hdl.handle.net/1822/24291 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0944-1344 0944-1344 10.1007/s11356-012-1055-1 22752815 |
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.publisher.none.fl_str_mv |
Springer Kluwer Academic Publishers |
publisher.none.fl_str_mv |
Springer Kluwer Academic Publishers |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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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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1799132914017894400 |