Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications

Detalhes bibliográficos
Autor(a) principal: Figueiredo, Daniel
Data de Publicação: 2022
Outros Autores: Ferreira, Alice, Gama, Florinda, Gouveia, Luisa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/3871
Resumo: ABSTRACT: Electrocoagulation is a promising technology to harvest and concentrate microalgae while saving costs on secondary dewatering steps. However, the sacrificial electrodes release salts that impact the media and the harvested biomass. This study evaluated the effects of Fe, Zn, and Mg electrodes on Nannochloropsis oceanica harvesting and elementary composition of biomass and supernatants. Moreover, plant bioavailability of electrocoagulation minerals attached to biomass was assessed in the tomato plant model Solanum lycopersicum (cv. ‘Cherry’). Fe electrodes had better performance at lower power consumption and operation costs, followed by Zn and Mg. Electrocoagulation changes biomass and supernatant nutrient composition. Electrodes precipitated Mg and Ca from the nutrient media, enriching N. oceanica biomass, but increased Pb 2–4 times and depleted P in supernatants. Finally, Fe and Mg electrode metals in the biomass were proven bioavailable to S. lycopersicum seedlings, making electrocoagulation harvested biomass a promising bioresource to agricultural applications.
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spelling Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applicationsMicroalgaeElectrocoagulationAlternative electrodesHarvestingPlant nutritionPlant stressABSTRACT: Electrocoagulation is a promising technology to harvest and concentrate microalgae while saving costs on secondary dewatering steps. However, the sacrificial electrodes release salts that impact the media and the harvested biomass. This study evaluated the effects of Fe, Zn, and Mg electrodes on Nannochloropsis oceanica harvesting and elementary composition of biomass and supernatants. Moreover, plant bioavailability of electrocoagulation minerals attached to biomass was assessed in the tomato plant model Solanum lycopersicum (cv. ‘Cherry’). Fe electrodes had better performance at lower power consumption and operation costs, followed by Zn and Mg. Electrocoagulation changes biomass and supernatant nutrient composition. Electrodes precipitated Mg and Ca from the nutrient media, enriching N. oceanica biomass, but increased Pb 2–4 times and depleted P in supernatants. Finally, Fe and Mg electrode metals in the biomass were proven bioavailable to S. lycopersicum seedlings, making electrocoagulation harvested biomass a promising bioresource to agricultural applications.ElsevierRepositório do LNEGFigueiredo, DanielFerreira, AliceGama, FlorindaGouveia, Luisa2022-07-01T15:40:49Z2022-02-01T00:00:00Z2022-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3871engFigueiredo, Daniel... [et.al.] - Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications. In: Bioresource Technology Reports, 2022, Vol. 17, article nº 1009792589-014X10.1016/j.biteb.2022.100979info: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:RCAAP2022-09-06T12:29:43Zoai:repositorio.lneg.pt:10400.9/3871Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:37:07.780084Repositório 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 Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
title Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
spellingShingle Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
Figueiredo, Daniel
Microalgae
Electrocoagulation
Alternative electrodes
Harvesting
Plant nutrition
Plant stress
title_short Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
title_full Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
title_fullStr Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
title_full_unstemmed Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
title_sort Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications
author Figueiredo, Daniel
author_facet Figueiredo, Daniel
Ferreira, Alice
Gama, Florinda
Gouveia, Luisa
author_role author
author2 Ferreira, Alice
Gama, Florinda
Gouveia, Luisa
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Figueiredo, Daniel
Ferreira, Alice
Gama, Florinda
Gouveia, Luisa
dc.subject.por.fl_str_mv Microalgae
Electrocoagulation
Alternative electrodes
Harvesting
Plant nutrition
Plant stress
topic Microalgae
Electrocoagulation
Alternative electrodes
Harvesting
Plant nutrition
Plant stress
description ABSTRACT: Electrocoagulation is a promising technology to harvest and concentrate microalgae while saving costs on secondary dewatering steps. However, the sacrificial electrodes release salts that impact the media and the harvested biomass. This study evaluated the effects of Fe, Zn, and Mg electrodes on Nannochloropsis oceanica harvesting and elementary composition of biomass and supernatants. Moreover, plant bioavailability of electrocoagulation minerals attached to biomass was assessed in the tomato plant model Solanum lycopersicum (cv. ‘Cherry’). Fe electrodes had better performance at lower power consumption and operation costs, followed by Zn and Mg. Electrocoagulation changes biomass and supernatant nutrient composition. Electrodes precipitated Mg and Ca from the nutrient media, enriching N. oceanica biomass, but increased Pb 2–4 times and depleted P in supernatants. Finally, Fe and Mg electrode metals in the biomass were proven bioavailable to S. lycopersicum seedlings, making electrocoagulation harvested biomass a promising bioresource to agricultural applications.
publishDate 2022
dc.date.none.fl_str_mv 2022-07-01T15:40:49Z
2022-02-01T00:00:00Z
2022-02-01T00:00:00Z
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/10400.9/3871
url http://hdl.handle.net/10400.9/3871
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Figueiredo, Daniel... [et.al.] - Nannochloropsis oceanica biomass enriched by electrocoagulation harvesting with promising agricultural applications. In: Bioresource Technology Reports, 2022, Vol. 17, article nº 100979
2589-014X
10.1016/j.biteb.2022.100979
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 Elsevier
publisher.none.fl_str_mv Elsevier
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)
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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
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