Microalgae flocculation: Impact of flocculant type, algae species and cell concentration

Autores
Gerde, Jose Arnaldo; Yao, Linxing; Lio, JunYi; Wen, Zhiyou; Wang, Tong
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Flocculation is an effective means of de-watering microalgae. This study was conducted to evaluate how cell type and concentration impact flocculation efficiency. Aluminum sulfate (Al2(SO4)3) and two cationic starches with degree of substitutions of 0.5 and 0.2 (DS05 and DS02) were used to flocculate cells of Scenedesmus spp., Chlamydomonas reinhardtii, and Schizochytrium limacinum at three cell concentrations. The amount of cells flocculated per mg of flocculant used was 4-28 times greater with the modified starches than with Al2(SO4)3. The maximum amount of cells flocculated per mg of flocculant was the greatest for S. limacinum (414mg cells/mg DS05 and 25.6mg cells/mg Al2(SO4)3), which had a surface zeta potential of -9.97mV. The flocs produced by the starches were more concentrated in cells and less prone to disruption than those produced with Al2(SO4)3. In general, at high cell concentrations the mass of cells flocculated per unit mass of DS05 and Al2(SO4)3 increased for all algae species. Cationic starches, especially those with high degree of substitution, provide an efficient and ecologically friendly way to harvest microalgae for biofuel production. This study achieved the goal of evaluating important factors and conditions that are unique for a particular algae production system in order to most efficiently harvest microalgae by flocculation.
Fil: Gerde, Jose Arnaldo. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Cátedra de Cultivo Extensivos Cereales y Oleaginosas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina. Iowa State University; Estados Unidos
Fil: Yao, Linxing. Iowa State University; Estados Unidos
Fil: Lio, JunYi. Iowa State University; Estados Unidos
Fil: Wen, Zhiyou. Iowa State University; Estados Unidos
Fil: Wang, Tong. Iowa State University; Estados Unidos
Materia
BIOFUELS
CATIONIC STARCH
FLOCCULANT
FLOCCULATION
MICROALGAE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/94347
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/94347
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Microalgae flocculation: Impact of flocculant type, algae species and cell concentrationGerde, Jose ArnaldoYao, LinxingLio, JunYiWen, ZhiyouWang, TongBIOFUELSCATIONIC STARCHFLOCCULANTFLOCCULATIONMICROALGAEhttps://purl.org/becyt/ford/2.9https://purl.org/becyt/ford/2Flocculation is an effective means of de-watering microalgae. This study was conducted to evaluate how cell type and concentration impact flocculation efficiency. Aluminum sulfate (Al2(SO4)3) and two cationic starches with degree of substitutions of 0.5 and 0.2 (DS05 and DS02) were used to flocculate cells of Scenedesmus spp., Chlamydomonas reinhardtii, and Schizochytrium limacinum at three cell concentrations. The amount of cells flocculated per mg of flocculant used was 4-28 times greater with the modified starches than with Al2(SO4)3. The maximum amount of cells flocculated per mg of flocculant was the greatest for S. limacinum (414mg cells/mg DS05 and 25.6mg cells/mg Al2(SO4)3), which had a surface zeta potential of -9.97mV. The flocs produced by the starches were more concentrated in cells and less prone to disruption than those produced with Al2(SO4)3. In general, at high cell concentrations the mass of cells flocculated per unit mass of DS05 and Al2(SO4)3 increased for all algae species. Cationic starches, especially those with high degree of substitution, provide an efficient and ecologically friendly way to harvest microalgae for biofuel production. This study achieved the goal of evaluating important factors and conditions that are unique for a particular algae production system in order to most efficiently harvest microalgae by flocculation.Fil: Gerde, Jose Arnaldo. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Cátedra de Cultivo Extensivos Cereales y Oleaginosas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina. Iowa State University; Estados UnidosFil: Yao, Linxing. Iowa State University; Estados UnidosFil: Lio, JunYi. Iowa State University; Estados UnidosFil: Wen, Zhiyou. Iowa State University; Estados UnidosFil: Wang, Tong. Iowa State University; Estados UnidosElsevier2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94347Gerde, Jose Arnaldo; Yao, Linxing; Lio, JunYi; Wen, Zhiyou; Wang, Tong; Microalgae flocculation: Impact of flocculant type, algae species and cell concentration; Elsevier; Algal Research; 3; 1-2014; 30-352211-9264CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.algal.2013.11.015info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2211926413001148info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:16Zoai:ri.conicet.gov.ar:11336/94347instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:53:16.43CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
title Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
spellingShingle Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
Gerde, Jose Arnaldo
BIOFUELS
CATIONIC STARCH
FLOCCULANT
FLOCCULATION
MICROALGAE
title_short Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
title_full Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
title_fullStr Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
title_full_unstemmed Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
title_sort Microalgae flocculation: Impact of flocculant type, algae species and cell concentration
dc.creator.none.fl_str_mv Gerde, Jose Arnaldo
Yao, Linxing
Lio, JunYi
Wen, Zhiyou
Wang, Tong
author Gerde, Jose Arnaldo
author_facet Gerde, Jose Arnaldo
Yao, Linxing
Lio, JunYi
Wen, Zhiyou
Wang, Tong
author_role author
author2 Yao, Linxing
Lio, JunYi
Wen, Zhiyou
Wang, Tong
author2_role author
author
author
author
dc.subject.none.fl_str_mv BIOFUELS
CATIONIC STARCH
FLOCCULANT
FLOCCULATION
MICROALGAE
topic BIOFUELS
CATIONIC STARCH
FLOCCULANT
FLOCCULATION
MICROALGAE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.9
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Flocculation is an effective means of de-watering microalgae. This study was conducted to evaluate how cell type and concentration impact flocculation efficiency. Aluminum sulfate (Al2(SO4)3) and two cationic starches with degree of substitutions of 0.5 and 0.2 (DS05 and DS02) were used to flocculate cells of Scenedesmus spp., Chlamydomonas reinhardtii, and Schizochytrium limacinum at three cell concentrations. The amount of cells flocculated per mg of flocculant used was 4-28 times greater with the modified starches than with Al2(SO4)3. The maximum amount of cells flocculated per mg of flocculant was the greatest for S. limacinum (414mg cells/mg DS05 and 25.6mg cells/mg Al2(SO4)3), which had a surface zeta potential of -9.97mV. The flocs produced by the starches were more concentrated in cells and less prone to disruption than those produced with Al2(SO4)3. In general, at high cell concentrations the mass of cells flocculated per unit mass of DS05 and Al2(SO4)3 increased for all algae species. Cationic starches, especially those with high degree of substitution, provide an efficient and ecologically friendly way to harvest microalgae for biofuel production. This study achieved the goal of evaluating important factors and conditions that are unique for a particular algae production system in order to most efficiently harvest microalgae by flocculation.
Fil: Gerde, Jose Arnaldo. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Cátedra de Cultivo Extensivos Cereales y Oleaginosas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina. Iowa State University; Estados Unidos
Fil: Yao, Linxing. Iowa State University; Estados Unidos
Fil: Lio, JunYi. Iowa State University; Estados Unidos
Fil: Wen, Zhiyou. Iowa State University; Estados Unidos
Fil: Wang, Tong. Iowa State University; Estados Unidos
description Flocculation is an effective means of de-watering microalgae. This study was conducted to evaluate how cell type and concentration impact flocculation efficiency. Aluminum sulfate (Al2(SO4)3) and two cationic starches with degree of substitutions of 0.5 and 0.2 (DS05 and DS02) were used to flocculate cells of Scenedesmus spp., Chlamydomonas reinhardtii, and Schizochytrium limacinum at three cell concentrations. The amount of cells flocculated per mg of flocculant used was 4-28 times greater with the modified starches than with Al2(SO4)3. The maximum amount of cells flocculated per mg of flocculant was the greatest for S. limacinum (414mg cells/mg DS05 and 25.6mg cells/mg Al2(SO4)3), which had a surface zeta potential of -9.97mV. The flocs produced by the starches were more concentrated in cells and less prone to disruption than those produced with Al2(SO4)3. In general, at high cell concentrations the mass of cells flocculated per unit mass of DS05 and Al2(SO4)3 increased for all algae species. Cationic starches, especially those with high degree of substitution, provide an efficient and ecologically friendly way to harvest microalgae for biofuel production. This study achieved the goal of evaluating important factors and conditions that are unique for a particular algae production system in order to most efficiently harvest microalgae by flocculation.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/94347
Gerde, Jose Arnaldo; Yao, Linxing; Lio, JunYi; Wen, Zhiyou; Wang, Tong; Microalgae flocculation: Impact of flocculant type, algae species and cell concentration; Elsevier; Algal Research; 3; 1-2014; 30-35
2211-9264
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94347
identifier_str_mv Gerde, Jose Arnaldo; Yao, Linxing; Lio, JunYi; Wen, Zhiyou; Wang, Tong; Microalgae flocculation: Impact of flocculant type, algae species and cell concentration; Elsevier; Algal Research; 3; 1-2014; 30-35
2211-9264
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.algal.2013.11.015
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2211926413001148
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269212799664128
score 13.13397

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