Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation

Detalhes bibliográficos
Autor(a) principal: Luna,Christine Lamenha
Data de Publicação: 2005
Outros Autores: Lopes,Carlos Edison, Massarani,Giulio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400008
Resumo: The aim of this work was use flocculation/sedimentation and flotation for recovery of spores of the Bacillus sphaericus. Microorganism was produced batchwise using culture medium based skimmed milk, corn steep liquor and mineral salts. The best results of flocculation were obtained using CaCl2.2H2O, FeCl3.6H2O, Al2(SO4)3 and tannin as flocculating agents, with optimal flocculation concentrations of 1,500, 3,000, 2,000 and 1,700ppm, respectively. Flocculent suspensions were characterized based on floc diameter and density. Settling tests were performed in batch at different concentrations of the cellular suspensions and revealed high recovery of the solids in suspension in all cases. Flotation tests were accomplished using a mechanical agitated flotation cell and the process was favoured by the increase of the system agitation and for the presence of a cationic collector.
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spelling Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotationBacillus sphaericusflocculationsedimentationflotationThe aim of this work was use flocculation/sedimentation and flotation for recovery of spores of the Bacillus sphaericus. Microorganism was produced batchwise using culture medium based skimmed milk, corn steep liquor and mineral salts. The best results of flocculation were obtained using CaCl2.2H2O, FeCl3.6H2O, Al2(SO4)3 and tannin as flocculating agents, with optimal flocculation concentrations of 1,500, 3,000, 2,000 and 1,700ppm, respectively. Flocculent suspensions were characterized based on floc diameter and density. Settling tests were performed in batch at different concentrations of the cellular suspensions and revealed high recovery of the solids in suspension in all cases. Flotation tests were accomplished using a mechanical agitated flotation cell and the process was favoured by the increase of the system agitation and for the presence of a cationic collector.Instituto de Tecnologia do Paraná - Tecpar2005-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400008Brazilian Archives of Biology and Technology v.48 n.spe 2005reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132005000400008info:eu-repo/semantics/openAccessLuna,Christine LamenhaLopes,Carlos EdisonMassarani,Giulioeng2005-08-15T00:00:00Zoai:scielo:S1516-89132005000400008Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2005-08-15T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
title Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
spellingShingle Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
Luna,Christine Lamenha
Bacillus sphaericus
flocculation
sedimentation
flotation
title_short Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
title_full Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
title_fullStr Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
title_full_unstemmed Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
title_sort Recovery of Bacillus sphaericus spores by flocculation/sedimentation and flotation
author Luna,Christine Lamenha
author_facet Luna,Christine Lamenha
Lopes,Carlos Edison
Massarani,Giulio
author_role author
author2 Lopes,Carlos Edison
Massarani,Giulio
author2_role author
author
dc.contributor.author.fl_str_mv Luna,Christine Lamenha
Lopes,Carlos Edison
Massarani,Giulio
dc.subject.por.fl_str_mv Bacillus sphaericus
flocculation
sedimentation
flotation
topic Bacillus sphaericus
flocculation
sedimentation
flotation
description The aim of this work was use flocculation/sedimentation and flotation for recovery of spores of the Bacillus sphaericus. Microorganism was produced batchwise using culture medium based skimmed milk, corn steep liquor and mineral salts. The best results of flocculation were obtained using CaCl2.2H2O, FeCl3.6H2O, Al2(SO4)3 and tannin as flocculating agents, with optimal flocculation concentrations of 1,500, 3,000, 2,000 and 1,700ppm, respectively. Flocculent suspensions were characterized based on floc diameter and density. Settling tests were performed in batch at different concentrations of the cellular suspensions and revealed high recovery of the solids in suspension in all cases. Flotation tests were accomplished using a mechanical agitated flotation cell and the process was favoured by the increase of the system agitation and for the presence of a cationic collector.
publishDate 2005
dc.date.none.fl_str_mv 2005-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-89132005000400008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.48 n.spe 2005
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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