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From piggery wastewater to wheat using microalgae towards zero waste

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dc.contributor.authorFerreira, Alice
dc.contributor.authorFigueiredo, Daniel
dc.contributor.authorFerreira, Francisca
dc.contributor.authorMarujo, Ana
dc.contributor.authorBastos, Carolina
dc.contributor.authorMartin-Atanes, Guillermo
dc.contributor.authorRibeiro, Belina
dc.contributor.authorŠtěrbová, Karolína
dc.contributor.authorMarques-dos-Santos, Cláudia
dc.contributor.authorAcién, F. Gabriel
dc.contributor.authorGouveia, Luisa
dc.date.accessioned2023-09-19T14:15:10Z
dc.date.available2023-09-19T14:15:10Z
dc.date.issued2023
dc.description.abstractMicroalgae production is still expensive, driving the need to lower costs while strengthening the industry's environmental sustainability. Microalgae are recognized tools for efficient wastewater treatment, offering the recycling of nutrients and water for agriculture, and producing biomass rich in growth-promoting compounds to improve plant productivity and resistance to adverse conditions. The use of wastewater can reduce cultivation costs as it is a source of nutrients and water. Alternative low-cost methods can significantly decrease harvesting costs, which represents one of the most expensive steps of the whole process.The goal of this work was to evaluate the potential of wastewater-grown microalga biomass for agriculture purposes. To reduce production costs, the microalga Tetradesmus obliquus was produced in pre-treated photo-Fenton (PF) piggery wastewater in combination with the use of different harvesting techniques - electro-coagulation, flocculation, and centrifugation, and different combinations. From the wastewater treatment pro-cess, two fractions (biomass and supernatant) were evaluated for germination and growth of wheat (Triticum aestivum L.) plants and compared to non-harvested microalga culture (MC), distilled water, and Hoagland (synthetic) solution. The concentrated resulting from PF was also tested as a biofertilizer.The results confirm that both biomass and supernatants are useful for agricultural applications. The obtained biomass elicited a 20-105 % increase in germination index compared to the control, while supernatants were inhibiting. The opposite trend was observed at later stages of wheat growth, where the nutrient-enriched su-pernatants and the PF concentrate (PF-CC) increased the number of tillers (3-5) and leaves (30-42) after 83 days. Wheat plants treated with MC and PF-CC produced similar number of ears (3.4 & PLUSMN; 0.5 and 6.0 & PLUSMN; 4.1 ears per plant, respectively) than the synthetic control (5.7 & PLUSMN; 1.4) after 182 days. All fractions obtained from the process can be used in a zero-waste process.pt_PT
dc.description.sponsorshipALGAVALOR - Lisboa-01- 0247-FEDER-035234, supported by Operational Programme for Competitiveness and Internationalization (COMPETE2020), by Lisbon Portugal Regional Operational Programme (Lisboa 2020) and by Algarve Regional Operational Programme (Algarve 2020) under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (ERDF); LISBOA-01-0145-FEDER-022059; P320RT0025; Bilateral Portugal-India DRI/India/0609/2020 - Project WCAlgaeKIT+ - Combination of Vertical Wetlands, Microalgae Photobioreactor and Microbial Fuel Cell (KIT) for wastewater treatment in small pig production farms; 2022.14298.BDANA; 2022.11872.BDANA; 2020-1-ES01-KA103-079382.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.algal.2023.103153pt_PT
dc.identifier.issn2211-9264
dc.identifier.urihttp://hdl.handle.net/10400.1/20006
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
dc.relationBiofuels Research Infrastructure for Sharing Knowledge II
dc.subjectTetradesmus obliquuspt_PT
dc.subjectSwine effluentpt_PT
dc.subjectPhoto-Fentonpt_PT
dc.subjectBiostimulantpt_PT
dc.subjectBiofertilizerpt_PT
dc.subjectCircular economypt_PT
dc.titleFrom piggery wastewater to wheat using microalgae towards zero wastept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDevelopment of agricultural bioproducts biofertilizers, biostimulants and biopesticides from piggery wastewater treatment-based microalgae
oaire.awardTitleBiofuels Research Infrastructure for Sharing Knowledge II
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F144122%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/731101/EU
oaire.citation.startPage103153pt_PT
oaire.citation.titleAlgal Researchpt_PT
oaire.citation.volume72pt_PT
oaire.fundingStreamH2020
person.familyNameRodrigues Figueiredo
person.familyNameRebelo de Vela Bastos
person.familyNameGouveia
person.givenNameDaniel
person.givenNameCarolina
person.givenNameLuisa
person.identifierH-4046-2011
person.identifier.ciencia-id181D-2CFA-B65A
person.identifier.ciencia-idC319-1433-2782
person.identifier.ciencia-id581B-924A-84DD
person.identifier.orcid0000-0003-3201-5736
person.identifier.orcid0000-0002-2950-0282
person.identifier.orcid0000-0003-0196-6360
person.identifier.scopus-author-id7004135834
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationf539897e-73bb-4f05-86a9-c30eeb10fbb7
relation.isAuthorOfPublication224a7811-eefe-45e6-a80f-5b9b3866ba73
relation.isAuthorOfPublicationf559d57b-b659-4d65-bf6c-698bf99e729b
relation.isAuthorOfPublication.latestForDiscoveryf559d57b-b659-4d65-bf6c-698bf99e729b
relation.isProjectOfPublicationf20303e7-db30-48d5-a3be-2a502d408046
relation.isProjectOfPublication322b26c6-c370-4783-924e-bff7554de2ff
relation.isProjectOfPublication.latestForDiscovery322b26c6-c370-4783-924e-bff7554de2ff

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