Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/59027 |
Resumo: | The pH effect on the sorption capacity of vermiculite towards cadmium and nickel was tested in batch systems and it was shown that the sorption percentages increase with increasing the mass of vermiculite and with increasing the initial pH. Maximum sorption percentages were obtained for a pH of 8 and 4 g of vermiculite (86.5 % for Cd2+ and 86.1 % for Ni2+, for solutions with 100 mg/L of metal). As a consequence, it was possible to establish a range of optimal pH for biosorption processes, by combining the so determined optimal sorption pH of vermiculite with the optimal growth pH of S. equisimilis, a bacterium used to treat contaminated water. Pilot-scale experiments with a Streptococcus equisimilis biofilm supported on vermiculite were conducted in close loop aiming the treatment of large volumes of diethylketone aqueous solutions, eventually containing Cd2+or Ni2+. The excellent capacity of this joint system to simultaneously biodegrade diethylketone and biosorb Cd2+or Ni2+was proven. The removal percentage and the uptake increase through time, even with the replacement of the initial solution by new ones. The breakthrough curves that best describe the results achieved for Cd2+ and Ni2+, are respectively, the Adams-Bohart and the Yoon and Nelson model. |
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Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+CadmiumDiethylketoneNickelSorptionStreptococcus equisimilisVermiculiteScience & TechnologyThe pH effect on the sorption capacity of vermiculite towards cadmium and nickel was tested in batch systems and it was shown that the sorption percentages increase with increasing the mass of vermiculite and with increasing the initial pH. Maximum sorption percentages were obtained for a pH of 8 and 4 g of vermiculite (86.5 % for Cd2+ and 86.1 % for Ni2+, for solutions with 100 mg/L of metal). As a consequence, it was possible to establish a range of optimal pH for biosorption processes, by combining the so determined optimal sorption pH of vermiculite with the optimal growth pH of S. equisimilis, a bacterium used to treat contaminated water. Pilot-scale experiments with a Streptococcus equisimilis biofilm supported on vermiculite were conducted in close loop aiming the treatment of large volumes of diethylketone aqueous solutions, eventually containing Cd2+or Ni2+. The excellent capacity of this joint system to simultaneously biodegrade diethylketone and biosorb Cd2+or Ni2+was proven. The removal percentage and the uptake increase through time, even with the replacement of the initial solution by new ones. The breakthrough curves that best describe the results achieved for Cd2+ and Ni2+, are respectively, the Adams-Bohart and the Yoon and Nelson model.This study was supported by the Portuguese Foundation for Science and Technology (FCT; Fundação para a Ciência e a Tecnologia) under the scope of the strategic funding of [UID/BIO/ 04469/2013] unit and COMPETE 2020 [POCI-01-0145-FEDER006684]. Filomena Costa thanks FCT for a Ph.D. Grant [SFRH/ BD/77666/2011].info:eu-repo/semantics/publishedVersionTaylor & FrancisUniversidade do MinhoCosta, FilomenaTavares, T.20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/59027engCosta, Filomena; Tavares, Teresa, Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+. Environmental Technology, 40(8), 942-953, 20190959-33301479-487X10.1080/09593330.2017.141197929187066http://www.tandfonline.com/toc/tent20/currentinfo: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:RCAAP2023-07-21T12:30:29Zoai:repositorium.sdum.uminho.pt:1822/59027Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:25:40.746284Repositório 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 |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ |
title |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ |
spellingShingle |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ Costa, Filomena Cadmium Diethylketone Nickel Sorption Streptococcus equisimilis Vermiculite Science & Technology |
title_short |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ |
title_full |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ |
title_fullStr |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ |
title_full_unstemmed |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ |
title_sort |
Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+ |
author |
Costa, Filomena |
author_facet |
Costa, Filomena Tavares, T. |
author_role |
author |
author2 |
Tavares, T. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Costa, Filomena Tavares, T. |
dc.subject.por.fl_str_mv |
Cadmium Diethylketone Nickel Sorption Streptococcus equisimilis Vermiculite Science & Technology |
topic |
Cadmium Diethylketone Nickel Sorption Streptococcus equisimilis Vermiculite Science & Technology |
description |
The pH effect on the sorption capacity of vermiculite towards cadmium and nickel was tested in batch systems and it was shown that the sorption percentages increase with increasing the mass of vermiculite and with increasing the initial pH. Maximum sorption percentages were obtained for a pH of 8 and 4 g of vermiculite (86.5 % for Cd2+ and 86.1 % for Ni2+, for solutions with 100 mg/L of metal). As a consequence, it was possible to establish a range of optimal pH for biosorption processes, by combining the so determined optimal sorption pH of vermiculite with the optimal growth pH of S. equisimilis, a bacterium used to treat contaminated water. Pilot-scale experiments with a Streptococcus equisimilis biofilm supported on vermiculite were conducted in close loop aiming the treatment of large volumes of diethylketone aqueous solutions, eventually containing Cd2+or Ni2+. The excellent capacity of this joint system to simultaneously biodegrade diethylketone and biosorb Cd2+or Ni2+was proven. The removal percentage and the uptake increase through time, even with the replacement of the initial solution by new ones. The breakthrough curves that best describe the results achieved for Cd2+ and Ni2+, are respectively, the Adams-Bohart and the Yoon and Nelson model. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2019-01-01T00:00:00Z |
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 |
http://hdl.handle.net/1822/59027 |
url |
http://hdl.handle.net/1822/59027 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Costa, Filomena; Tavares, Teresa, Pilot-scale sorption studies of diethylketone in the presence of Cd2+ and Ni2+. Environmental Technology, 40(8), 942-953, 2019 0959-3330 1479-487X 10.1080/09593330.2017.1411979 29187066 http://www.tandfonline.com/toc/tent20/current |
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 |
Taylor & Francis |
publisher.none.fl_str_mv |
Taylor & Francis |
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 |
instacron_str |
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) |
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 |
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1799132742036750336 |