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

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 flocculat...

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Detalhes bibliográficos
Autores: Gerde, Jose Arnaldo, Yao, Linxing, Lio, JunYi, Wen, Zhiyou, Wang, Tong
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/94347
Acesso em linha:http://hdl.handle.net/11336/94347
Access Level:acceso abierto
Palavra-chave:BIOFUELS
CATIONIC STARCH
FLOCCULANT
FLOCCULATION
MICROALGAE
https://purl.org/becyt/ford/2.9
https://purl.org/becyt/ford/2
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oai_identifier_str oai:ri.conicet.gov.ar:11336/94347
network_acronym_str AR
network_name_str Argentina
repository_id_str
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 Técnicas2024-05-08T13:47:54Zoai: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:34982024-05-08 13:47:55.195CONICET 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
https://purl.org/becyt/ford/2.9
https://purl.org/becyt/ford/2
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
https://purl.org/becyt/ford/2.9
https://purl.org/becyt/ford/2
topic BIOFUELS
CATIONIC STARCH
FLOCCULANT
FLOCCULATION
MICROALGAE
https://purl.org/becyt/ford/2.9
https://purl.org/becyt/ford/2
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
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score 15,812429

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