Publicação
Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes
| Resumo: | The effectiveness of a non-oxidising biocide (a carbamate-based solution) as a retention agent for cells of Pseudomonas fluorescens in a paper pulp suspension was studied, as a way to reduce biofouling in pulp and paper production processes. The results indicated that the addition of the biocide not only changed the pH of the paper pulp suspension, but also shifted the surface charges of the bacterial cells from negative to neutral or positive values, depending on the pH value and the biocide concentration. Therefore, since the paper pulp fibres are negatively charged, adhesion of bacterial cells to the fibres is promoted. Hence, it was possible to obtain an increase in cell retention on the cellulose fibres from 45% to 75%, within less than 5 min of contact between the carbamate and the pulp suspension. This effect increased with the concentration of carbamate solution in the fibre suspension (100-300 mg Lˉ¹), and was always higher than in the absence of biocide. |
|---|---|
| Autores principais: | Pereira, Maria Olívia |
| Outros Autores: | Vieira, M. J.; Beleza, V. M.; Melo, L. F. |
| Assunto: | Pulp and paper industry Biofouling Biocide Pseudomonas fluorescens |
| Ano: | 1998 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867439477068136448 |
|---|---|
| author | Pereira, Maria Olívia |
| author2 | Vieira, M. J. Beleza, V. M. Melo, L. F. |
| author2_role | author author author |
| author_facet | Pereira, Maria Olívia Vieira, M. J. Beleza, V. M. Melo, L. F. |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Pereira, Maria Olívia\"},{\"Person.name\":\"Vieira, M. J.\"},{\"Person.name\":\"Beleza, V. M.\"},{\"Person.name\":\"Melo, L. F.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Pereira, Maria Olívia Vieira, M. J. Beleza, V. M. Melo, L. F. |
| datacite.date.Accepted.fl_str_mv | 1998-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2005-05-16T10:24:30Z |
| datacite.date.embargoed.fl_str_mv | 2005-05-16T10:24:30Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Pulp and paper industry Biofouling Biocide Pseudomonas fluorescens |
| datacite.titles.title.fl_str_mv | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Pereira, Maria Olívia Vieira, M. J. Beleza, V. M. Melo, L. F. |
| dc.date.Accepted.fl_str_mv | 1998-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2005-05-16T10:24:30Z |
| dc.date.embargoed.fl_str_mv | 2005-05-16T10:24:30Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/1589 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Opa (overseas Publishers Association) |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Pulp and paper industry Biofouling Biocide Pseudomonas fluorescens |
| dc.title.fl_str_mv | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The effectiveness of a non-oxidising biocide (a carbamate-based solution) as a retention agent for cells of Pseudomonas fluorescens in a paper pulp suspension was studied, as a way to reduce biofouling in pulp and paper production processes. The results indicated that the addition of the biocide not only changed the pH of the paper pulp suspension, but also shifted the surface charges of the bacterial cells from negative to neutral or positive values, depending on the pH value and the biocide concentration. Therefore, since the paper pulp fibres are negatively charged, adhesion of bacterial cells to the fibres is promoted. Hence, it was possible to obtain an increase in cell retention on the cellulose fibres from 45% to 75%, within less than 5 min of contact between the carbamate and the pulp suspension. This effect increased with the concentration of carbamate solution in the fibre suspension (100-300 mg Lˉ¹), and was always higher than in the absence of biocide. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/91d76adb-8116-4426-81c0-f28e32ebc5f6/download |
| id | rum_716c93a4e60b9eeadd78dd3fdc8a9509 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/1589 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/1589 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Pereira, Maria Olívia Vieira, M. J. Beleza, V. M. Melo, L. F. |
| publishDate | 1998 |
| publisher.none.fl_str_mv | Opa (overseas Publishers Association) |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engOpa (overseas Publishers Association)engThe effectiveness of a non-oxidising biocide (a carbamate-based solution) as a retention agent for cells of Pseudomonas fluorescens in a paper pulp suspension was studied, as a way to reduce biofouling in pulp and paper production processes. The results indicated that the addition of the biocide not only changed the pH of the paper pulp suspension, but also shifted the surface charges of the bacterial cells from negative to neutral or positive values, depending on the pH value and the biocide concentration. Therefore, since the paper pulp fibres are negatively charged, adhesion of bacterial cells to the fibres is promoted. Hence, it was possible to obtain an increase in cell retention on the cellulose fibres from 45% to 75%, within less than 5 min of contact between the carbamate and the pulp suspension. This effect increased with the concentration of carbamate solution in the fibre suspension (100-300 mg Lˉ¹), and was always higher than in the absence of biocide.application/pdfengRetention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processesPereira, Maria OlíviaVieira, M. J.Beleza, V. M.Melo, L. F.HostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptCITATION"Biofouling". ISSN 0892-7014. 13:1 (1998) 1-18.ISSNIsPartOf0892-7014ISSNIsPartOf1029-2454DOIIsPartOf10.1080/089270198093783672005-05-16T10:24:30Z19981998-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/1589http://purl.org/coar/access_right/c_abf2open accessPulp and paper industryBiofoulingBiocidePseudomonas fluorescens839761 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/91d76adb-8116-4426-81c0-f28e32ebc5f6/download |
| spellingShingle | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes Pereira, Maria Olívia Pulp and paper industry Biofouling Biocide Pseudomonas fluorescens |
| status | SINGLETON |
| subject.fl_str_mv | Pulp and paper industry Biofouling Biocide Pseudomonas fluorescens |
| title | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| title_full | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| title_fullStr | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| title_full_unstemmed | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| title_short | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| title_sort | Retention of bacteria by cellulose fibres as a means of reducing biofouling in paper pulp production processes |
| topic | Pulp and paper industry Biofouling Biocide Pseudomonas fluorescens |
| topic_facet | Pulp and paper industry Biofouling Biocide Pseudomonas fluorescens |
| url | https://hdl.handle.net/1822/1589 |
| visible | 1 |