Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.9/2888 |
Resumo: | The production of different species of microalgae in consortium with other micro-organisms from wastewaters may represent an alternative process, to reduce the costs, for obtaining biofuels. The aim of this study was to evaluate the influence of pre-ultraviolet disinfection (UV) in the production of lipids from biomass produced in high rate ponds. Two high rate algal ponds were evaluated: a pond that received domestic sewage without disinfection and the other receiving domestic sewage previously disinfected by UV radiation (uvHRAP). The UV disinfection did not lead to significant differences in fatty acid profile and total lipid productivities, although it increased algal biomass concentration and productivity as well as lipid content. Moreover, the overall biomass concentrations and productivities decreased with the UV disinfection, mostly as a consequence of a loss in bacterial load. We thus conclude that uvHRAP disinfection may represent a potential strategy to promote the cleaner and safer growth of algal biomass when cultivated in consortium with other microorganisms. Mainly regarding the use of wastewater as culture medium, together with a cheaper production of lipids for biodiesel, pre-disinfection may represent an advance since extraction costs could be significantly trimmed due to the increase in lipid content. |
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Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluentBioenergyDomestic sewageFatty acidsMicroalgaeUltraviolet disinfectionThe production of different species of microalgae in consortium with other micro-organisms from wastewaters may represent an alternative process, to reduce the costs, for obtaining biofuels. The aim of this study was to evaluate the influence of pre-ultraviolet disinfection (UV) in the production of lipids from biomass produced in high rate ponds. Two high rate algal ponds were evaluated: a pond that received domestic sewage without disinfection and the other receiving domestic sewage previously disinfected by UV radiation (uvHRAP). The UV disinfection did not lead to significant differences in fatty acid profile and total lipid productivities, although it increased algal biomass concentration and productivity as well as lipid content. Moreover, the overall biomass concentrations and productivities decreased with the UV disinfection, mostly as a consequence of a loss in bacterial load. We thus conclude that uvHRAP disinfection may represent a potential strategy to promote the cleaner and safer growth of algal biomass when cultivated in consortium with other microorganisms. Mainly regarding the use of wastewater as culture medium, together with a cheaper production of lipids for biodiesel, pre-disinfection may represent an advance since extraction costs could be significantly trimmed due to the increase in lipid content.IWA PublishingRepositório do LNEGAssemany, PaulaCalijuri, Maria LuciaDe Aguiar Do Couto, EduardoReis, Alberto2016-03-16T15:36:03Z2015-01-01T00:00:00Z2015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2888engAssemany, P.P.; Calijuri, M.L.; Couto, E.A.; Santiago, A.F.; Reis, A. - Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent. In: Water Science and Technology, 2015, Vol. 71, nº 8, p. 1229-12340273-122310.2166/wst.2015.087info: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:RCAAP2022-09-06T12:28:08Zoai:repositorio.lneg.pt:10400.9/2888Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:35:55.885455Repositório 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 |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent |
title |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent |
spellingShingle |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent Assemany, Paula Bioenergy Domestic sewage Fatty acids Microalgae Ultraviolet disinfection |
title_short |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent |
title_full |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent |
title_fullStr |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent |
title_full_unstemmed |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent |
title_sort |
Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent |
author |
Assemany, Paula |
author_facet |
Assemany, Paula Calijuri, Maria Lucia De Aguiar Do Couto, Eduardo Reis, Alberto |
author_role |
author |
author2 |
Calijuri, Maria Lucia De Aguiar Do Couto, Eduardo Reis, Alberto |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório do LNEG |
dc.contributor.author.fl_str_mv |
Assemany, Paula Calijuri, Maria Lucia De Aguiar Do Couto, Eduardo Reis, Alberto |
dc.subject.por.fl_str_mv |
Bioenergy Domestic sewage Fatty acids Microalgae Ultraviolet disinfection |
topic |
Bioenergy Domestic sewage Fatty acids Microalgae Ultraviolet disinfection |
description |
The production of different species of microalgae in consortium with other micro-organisms from wastewaters may represent an alternative process, to reduce the costs, for obtaining biofuels. The aim of this study was to evaluate the influence of pre-ultraviolet disinfection (UV) in the production of lipids from biomass produced in high rate ponds. Two high rate algal ponds were evaluated: a pond that received domestic sewage without disinfection and the other receiving domestic sewage previously disinfected by UV radiation (uvHRAP). The UV disinfection did not lead to significant differences in fatty acid profile and total lipid productivities, although it increased algal biomass concentration and productivity as well as lipid content. Moreover, the overall biomass concentrations and productivities decreased with the UV disinfection, mostly as a consequence of a loss in bacterial load. We thus conclude that uvHRAP disinfection may represent a potential strategy to promote the cleaner and safer growth of algal biomass when cultivated in consortium with other microorganisms. Mainly regarding the use of wastewater as culture medium, together with a cheaper production of lipids for biodiesel, pre-disinfection may represent an advance since extraction costs could be significantly trimmed due to the increase in lipid content. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01T00:00:00Z 2015-01-01T00:00:00Z 2016-03-16T15:36:03Z |
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/10400.9/2888 |
url |
http://hdl.handle.net/10400.9/2888 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Assemany, P.P.; Calijuri, M.L.; Couto, E.A.; Santiago, A.F.; Reis, A. - Biodiesel from wastewater: lipid production in high rate algal pond receiving disinfected effluent. In: Water Science and Technology, 2015, Vol. 71, nº 8, p. 1229-1234 0273-1223 10.2166/wst.2015.087 |
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 |
IWA Publishing |
publisher.none.fl_str_mv |
IWA Publishing |
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 |
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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) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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 |
repository.mail.fl_str_mv |
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1799130225185914880 |