Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/10400.1/17389 |
Resumo: | Wastewater (WW) treatment using microalgae has become a growing trend due the economic and environmental benefits of the process. As microalgae need CO<sub>2</sub>, nitrogen, and phosphorus to grow, they remove these potential pollutants from wastewaters, making them able to replace energetically expensive treatment steps in conventional WW treatment. Unlike traditional sludge, biomass can be used to produce biofuels, biofertilizers, high value chemicals, and even next-generation growth media for “organically” grown microalgal biomass targeting zero-waste policies and contributing to a more sustainable circular bioeconomy. The main challenge in this technology is the techno-economic feasibility of the system. Alternatives such as the isolation of novel strains, the use of native consortia, and the design of new bioreactors have been studied to overcome this and aid the scale-up of microalgal systems. This review focuses on the treatment of urban, industrial, and agricultural wastewaters by microalgae and their ability to not only remove, but also promote the reuse, of those pollutants. Opportunities and future prospects are discussed, including the upgrading of the produced biomass into valuable compounds, mainly biofuels. |
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Microalgal systems for wastewater treatment: technological trends and challenges towards waste recoveryAgroindustrial wastewaterIndustrial wastewaterMicroalgal bioproductsUrban wastewaterStrain isolationWastewater (WW) treatment using microalgae has become a growing trend due the economic and environmental benefits of the process. As microalgae need CO<sub>2</sub>, nitrogen, and phosphorus to grow, they remove these potential pollutants from wastewaters, making them able to replace energetically expensive treatment steps in conventional WW treatment. Unlike traditional sludge, biomass can be used to produce biofuels, biofertilizers, high value chemicals, and even next-generation growth media for “organically” grown microalgal biomass targeting zero-waste policies and contributing to a more sustainable circular bioeconomy. The main challenge in this technology is the techno-economic feasibility of the system. Alternatives such as the isolation of novel strains, the use of native consortia, and the design of new bioreactors have been studied to overcome this and aid the scale-up of microalgal systems. This review focuses on the treatment of urban, industrial, and agricultural wastewaters by microalgae and their ability to not only remove, but also promote the reuse, of those pollutants. Opportunities and future prospects are discussed, including the upgrading of the produced biomass into valuable compounds, mainly biofuels.This research was funded by the Foundation for Science and Technology (FCT) through UIDB/04326/2020 and the GreenTreat (PTDC/BTA-BTA/31567/2017) and Red CYTED P319RT0025— RENUWAL—Red Iberoamericana para el Tratamiento de Efluentes con Microalgas projects and CRESC-Algarve and the European Regional Development Fund (ERDF) programs via the ALGAVALOR (ALG-01-0247-FEDER-035234) project.MDPISapientiaMorais, EtieleCristofoli, N.L.Maia, Inês BeatrizMagina, TâniaCerqueira, Paulo R.Teixeira, Margarida RibauVarela, JoãoBarreira, LuísaGouveia, Luisa2021-12-15T11:51:29Z2021-12-032021-12-09T14:32:00Z2021-12-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/17389engEnergies 14 (23): 8112 (2021)10.3390/en14238112info: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:RCAAP2023-07-24T10:29:31Zoai:sapientia.ualg.pt:10400.1/17389Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:07:21.900328Repositório 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 |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery |
title |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery |
spellingShingle |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery Morais, Etiele Agroindustrial wastewater Industrial wastewater Microalgal bioproducts Urban wastewater Strain isolation |
title_short |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery |
title_full |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery |
title_fullStr |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery |
title_full_unstemmed |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery |
title_sort |
Microalgal systems for wastewater treatment: technological trends and challenges towards waste recovery |
author |
Morais, Etiele |
author_facet |
Morais, Etiele Cristofoli, N.L. Maia, Inês Beatriz Magina, Tânia Cerqueira, Paulo R. Teixeira, Margarida Ribau Varela, João Barreira, Luísa Gouveia, Luisa |
author_role |
author |
author2 |
Cristofoli, N.L. Maia, Inês Beatriz Magina, Tânia Cerqueira, Paulo R. Teixeira, Margarida Ribau Varela, João Barreira, Luísa Gouveia, Luisa |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Morais, Etiele Cristofoli, N.L. Maia, Inês Beatriz Magina, Tânia Cerqueira, Paulo R. Teixeira, Margarida Ribau Varela, João Barreira, Luísa Gouveia, Luisa |
dc.subject.por.fl_str_mv |
Agroindustrial wastewater Industrial wastewater Microalgal bioproducts Urban wastewater Strain isolation |
topic |
Agroindustrial wastewater Industrial wastewater Microalgal bioproducts Urban wastewater Strain isolation |
description |
Wastewater (WW) treatment using microalgae has become a growing trend due the economic and environmental benefits of the process. As microalgae need CO<sub>2</sub>, nitrogen, and phosphorus to grow, they remove these potential pollutants from wastewaters, making them able to replace energetically expensive treatment steps in conventional WW treatment. Unlike traditional sludge, biomass can be used to produce biofuels, biofertilizers, high value chemicals, and even next-generation growth media for “organically” grown microalgal biomass targeting zero-waste policies and contributing to a more sustainable circular bioeconomy. The main challenge in this technology is the techno-economic feasibility of the system. Alternatives such as the isolation of novel strains, the use of native consortia, and the design of new bioreactors have been studied to overcome this and aid the scale-up of microalgal systems. This review focuses on the treatment of urban, industrial, and agricultural wastewaters by microalgae and their ability to not only remove, but also promote the reuse, of those pollutants. Opportunities and future prospects are discussed, including the upgrading of the produced biomass into valuable compounds, mainly biofuels. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-15T11:51:29Z 2021-12-03 2021-12-09T14:32:00Z 2021-12-03T00:00:00Z |
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/10400.1/17389 |
url |
http://hdl.handle.net/10400.1/17389 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Energies 14 (23): 8112 (2021) 10.3390/en14238112 |
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 |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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) |
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 |
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1799133317754257408 |