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Testing new strategies to improve the recovery of phosphorus from anaerobically digested organic fraction of municipal solid waste

2019Journal article Restricted access
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dc.contributor.authorOliveira, Verónica
dc.contributor.authorFerreira, Célia
dc.contributor.authorLabrincha, João
dc.contributor.authorRocha, Joana
dc.contributor.authorKirkelund, Gunvor M.
dc.date.accessioned2020-03-05T15:50:17Z
dc.date.available2020-03-05T15:50:17Z
dc.date.issued2019
dc.date.updated2020-02-29T10:52:29Z
dc.description.abstractBACKGROUND: This work is focused on phosphorus (P) recovery from the anaerobically digested organic fraction of municipal solid waste (referred to as ‘digestate’) as a fertilizer. The main purpose was to propose and test modifications to the electrodialytic process that increase P extraction, improve the quality of the fertilizer by removing contaminants, and reduce hydraulic retention time to allow for smaller system footprints. Strategies tested were: (i) lowering the pH of the digestate suspension to <4.5 using the electrochemical reactions and enhance P solubilization from the waste; (ii) changing the configuration of the electrodialytic cell from three to two chambers; and (iii) stirring the sample to shorten the duration of the extraction. RESULTS: Results show that the acidification of digestate by the electrochemical reactions was effective to enhance P extraction yield. Three-chamber electrodialytic experiments enabled the removal of heavy metals from the digestate, producing P-rich solutions with low metal concentrations. This resulted in the production of high-quality fertilizer which can be used for agricultural applications. The modification of the electrodialytic cell set-up from three- to two-chamber neither resulted in an increase of the P extraction yields, nor contributed to the removal of metals from the liquid phase of digestate. Reduction of the hydraulic retention time of electrodialytic extraction of P from 16 days to 9 days was attained by the use of stirring and by electrodialytic acidification. CONCLUSIONS: An increase of P recovery was accomplished by modification of electrodialytic extraction, resulting in 90% of Pbeing successfully extracted from the digestate and transformed into struvite.pt_PT
dc.description.sponsorshipThe authors would like to thank Sabrina Hvid for carrying out ICP analyses. This work was funded by Portuguese National Funds through FCT – Portuguese Foundation for Science and Technology under CERNAS (UID/AMB/00681/2013). Celia Dias-Ferreira and Verónica Oliveira were funded through FCT ‘Fundação para a Ciência e para a Tecnologia’ by POCH – Programa Operacional Capital Humano within ESF – European Social Fund and by national funds from MCTES (SFRH/BPD/100717/2014; SFRH/BD/115312/2016). Joana L. Rocha was funded by project 0340-SYMBIOSIS-3-E co-funded by FEDER ‘Fundo Europeu de Desenvolvimento Regional’ through Interreg V-A España-Portugal (POCTEP) 2014-2020.pt_PT
dc.description.sponsorship0340-SYMBIOSIS-3-E
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1002/jctb.6037pt_PT
dc.identifier.eid2-s2.0-85064318049
dc.identifier.eissn1097-4660
dc.identifier.issn0268-2575
dc.identifier.slugcv-prod-784408
dc.identifier.urihttp://hdl.handle.net/10400.2/9443
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationRAW - Recovering nutrients from wastes: eco-innovative solutions to transform waste into resources
dc.relationPhosphorus recovery from organic wastes aiming at its valorisation as a fertilizer
dc.subjectElectrodialytic processpt_PT
dc.subjectHeavy metalspt_PT
dc.subjectMunicipal solid wastept_PT
dc.subjectPhosphoruspt_PT
dc.subjectStruvitept_PT
dc.titleTesting new strategies to improve the recovery of phosphorus from 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.awardTitlePhosphorus recovery from organic wastes aiming at its valorisation as a fertilizer
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAMB%2F00681%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F100717%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/SFRH%2FBD%2F115312%2F2016/PT
oaire.citation.titleJournal of Chemical Technology and Biotechnologypt_PT
oaire.fundingStream5876
oaire.fundingStreamPOR_CENTRO
person.familyNameCosta Oliveira
person.familyNameFerreira
person.familyNameLabrincha Baptista
person.familyNameLapao Rocha
person.givenNameVerónica
person.givenNameCélia
person.givenNameJoão António
person.givenNameJoana
person.identifierB-3984-2010
person.identifier.ciencia-id6318-20F3-86AF
person.identifier.ciencia-id931E-FBDE-2098
person.identifier.ciencia-idD819-2C2C-7A16
person.identifier.ciencia-idFD1F-49AE-906E
person.identifier.orcid0000-0001-6012-920X
person.identifier.orcid0000-0002-7456-2538
person.identifier.orcid0000-0003-4782-1685
person.identifier.orcid0000-0002-0979-6709
person.identifier.scopus-author-id7003372169
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.cv.cienciaid931E-FBDE-2098 | Célia Maria Dias Ferreira
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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