The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control

Detalhes bibliográficos
Autor(a) principal: Pereira, Maria Olívia
Data de Publicação: 2002
Outros Autores: Vieira, M. J., Melo, L. F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/1664
Resumo: The influence of kaolin particles on the activity of Pseudomonas fuorescens and on the efficacy of a carbamate-based biocide was investigated. The results indicated that kaolin particles stimulated the activity of the bacteria for all buffered pH values studied (5, 7, and 9); this effect being more evident for the tests carried out at pH 5 and 9. The presence of the clay in P. fuorescens suspensions decreased the efficiency of disinfection of the carbamate. The results also showed that kaolin was very effective in removing carbamate from the culture media. Therefore, the biocide concentration in the solution decreased, and consequently its availability to the bacteria was reduced. The results could be explained by the interaction between kaolin particles and carbamate and by the changes in the configuration of kaolin aggregates, depending on the pH value.
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spelling The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial controlBiocideClay particlesRespiratory activityAdsorptionPseudomonas fluorescensScience & TechnologyThe influence of kaolin particles on the activity of Pseudomonas fuorescens and on the efficacy of a carbamate-based biocide was investigated. The results indicated that kaolin particles stimulated the activity of the bacteria for all buffered pH values studied (5, 7, and 9); this effect being more evident for the tests carried out at pH 5 and 9. The presence of the clay in P. fuorescens suspensions decreased the efficiency of disinfection of the carbamate. The results also showed that kaolin was very effective in removing carbamate from the culture media. Therefore, the biocide concentration in the solution decreased, and consequently its availability to the bacteria was reduced. The results could be explained by the interaction between kaolin particles and carbamate and by the changes in the configuration of kaolin aggregates, depending on the pH value.PRAXIS - project 2/2.1/BIO/37/94 - BD/3242/94. Instituto de Biotecnologia e Química Fina (IBQF).The Water Environment Federation (WEF)Universidade do MinhoPereira, Maria OlíviaVieira, M. J.Melo, L. F.2002-052002-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/1664eng"Water environment research". ISSN 1061-4303. 74:3 (2002) 235-241.1061-4303info: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:RCAAP2023-07-21T12:36:43Zoai:repositorium.sdum.uminho.pt:1822/1664Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:32:52.329405Repositório 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 The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
title The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
spellingShingle The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
Pereira, Maria Olívia
Biocide
Clay particles
Respiratory activity
Adsorption
Pseudomonas fluorescens
Science & Technology
title_short The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
title_full The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
title_fullStr The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
title_full_unstemmed The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
title_sort The role of kaolin particles in the performance of a carbamate-based biocide for water bacterial control
author Pereira, Maria Olívia
author_facet Pereira, Maria Olívia
Vieira, M. J.
Melo, L. F.
author_role author
author2 Vieira, M. J.
Melo, L. F.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Pereira, Maria Olívia
Vieira, M. J.
Melo, L. F.
dc.subject.por.fl_str_mv Biocide
Clay particles
Respiratory activity
Adsorption
Pseudomonas fluorescens
Science & Technology
topic Biocide
Clay particles
Respiratory activity
Adsorption
Pseudomonas fluorescens
Science & Technology
description The influence of kaolin particles on the activity of Pseudomonas fuorescens and on the efficacy of a carbamate-based biocide was investigated. The results indicated that kaolin particles stimulated the activity of the bacteria for all buffered pH values studied (5, 7, and 9); this effect being more evident for the tests carried out at pH 5 and 9. The presence of the clay in P. fuorescens suspensions decreased the efficiency of disinfection of the carbamate. The results also showed that kaolin was very effective in removing carbamate from the culture media. Therefore, the biocide concentration in the solution decreased, and consequently its availability to the bacteria was reduced. The results could be explained by the interaction between kaolin particles and carbamate and by the changes in the configuration of kaolin aggregates, depending on the pH value.
publishDate 2002
dc.date.none.fl_str_mv 2002-05
2002-05-01T00:00:00Z
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/1822/1664
url http://hdl.handle.net/1822/1664
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Water environment research". ISSN 1061-4303. 74:3 (2002) 235-241.
1061-4303
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 The Water Environment Federation (WEF)
publisher.none.fl_str_mv The Water Environment Federation (WEF)
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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