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Extraction of phosphorus and struvite production from the anaerobically digested organic fraction of municipal solid waste

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datacite.subject.sdg11:Cidades e Comunidades Sustentáveispt_PT
dc.contributor.authorOliveira, Verónica
dc.contributor.authorLabrincha, João
dc.contributor.authorFerreira, Célia
dc.date.accessioned2023-06-30T11:20:26Z
dc.date.available2023-06-30T11:20:26Z
dc.date.issued2018
dc.description.abstractIn this work a first attempt was carried out to recover phosphorus from the organic fraction of municipal solid waste (OFMSW) and to transform it into a fertilizer. Recovery of phosphorus was carried out by the electrodialytic process combined with struvite formation. Experiments were carried out in an electrodialytic cell, using either distilled water or nitric acid, and extraction times ranged from 1 to 16 days. During these experiments phosphorus was solubilised from a real industrial waste and separated from metal contaminants using electromigration. The extraction step was then followed by batch chemical precipitation tests to yield struvite. Phosphorus extraction from the waste was up to 43% in the electrodialytic treatment and its precipitation as struvite reached efficiencies close to 100%. The electrodialytic process effectively separated Ca, Cd, Pb, and Cu from the phosphorus fraction, but was not as effective in separating Zn. Struvite still contained 0.6–1.4 g kg−1 of Zn, which restricted its agronomic application to some cultures. This works shows that phosphorus can be extracted from digestate of OFMSW using the electrodialytic process and afterwards can be precipitated as struvite, a slow release fertilizer. Despite this work being only a first attempt to recover phosphorus from digestate of OFMSW and still requires optimisation, the potential of the process was demonstrated, which means digestate of OFMSW currently represents a so far under-explored secondary source of phosphoruspt_PT
dc.description.sponsorshipThe authors would like to thank Robert C. Pullar for carrying out SEM-EDS. Célia Dias-Ferreira and Verónica Oliveira gratefully acknowledge FCT − Fundação para a Ciência e para a Tecnologia for financial support (SFRH/BPD/100717/2014; SFRH/BD/115312/2016).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.jece.2018.04.034pt_PT
dc.identifier.issn2213-3437
dc.identifier.urihttp://hdl.handle.net/10400.2/14148
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationRAW - Recovering nutrients from wastes: eco-innovative solutions to transform waste into resources
dc.subjectDigestate of OFMSWpt_PT
dc.subjectElectrodialytic processpt_PT
dc.subjectMunicipal solid wastept_PT
dc.subjectPhosphorus recoverypt_PT
dc.subjectStruvitept_PT
dc.subjectUrban miningpt_PT
dc.titleExtraction of phosphorus and struvite production from the anaerobically digested organic fraction of municipal solid wastept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleRAW - Recovering nutrients from wastes: eco-innovative solutions to transform waste into resources
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F100717%2F2014/PT
oaire.citation.endPage2854pt_PT
oaire.citation.startPage2837pt_PT
oaire.citation.titleJournal of Environmental Chemical Engineeringpt_PT
oaire.citation.volume6pt_PT
person.familyNameFerreira
person.givenNameCélia
person.identifier.ciencia-id931E-FBDE-2098
person.identifier.orcid0000-0002-7456-2538
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicatione30010dd-0512-4da6-a0c9-910b47f18b4f
relation.isAuthorOfPublication.latestForDiscoverye30010dd-0512-4da6-a0c9-910b47f18b4f
relation.isProjectOfPublicationbfc45dda-8ea4-41eb-a77f-052f571a7454
relation.isProjectOfPublication.latestForDiscoverybfc45dda-8ea4-41eb-a77f-052f571a7454

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