Repository logo
 
Publication

A novel approach for nutrients recovery from municipal waste as biofertilizers by combining electrodialytic and gas permeable membrane technologies

2021-04-15Journal article Restricted access
Simple item page
dc.contributor.authorOliveira, Verónica
dc.contributor.authorFerreira, Célia
dc.contributor.authorGonzález-García, Isabel
dc.contributor.authorLabrincha, João
dc.contributor.authorHorta, Carmo
dc.contributor.authorGarcía-González, María Cruz
dc.date.accessioned2022-03-04T12:28:59Z
dc.date.available2022-03-04T12:28:59Z
dc.date.issued2021-04-15
dc.date.updated2022-01-15T15:53:30Z
dc.description.abstractThe recovery of valuable materials from waste fits the principle of circular economy and sustainable use of resources, but contaminants in the waste are still a major obstacle. This works proposes a novel approach to recover high-purity phosphorus (P) and nitrogen (N) from digestate of municipal solid waste based on the combination of two independent membrane processes: electrodialytic (ED) process to extract P, and gas permeable membranes (GPM) for N extraction. A laboratory ED cell was adapted to accommodate a GPM. The length of waste compartment (10 cm; 15 cm), current intensity (50 mA; 75 mA) and operation time (9 days; 12 days) were the variables tested. 81% of P in the waste was successfully extracted to the anolyte when an electric current of 75 mA was applied for 9 days, and 74% of NH4 + was extracted into an acid-trapping solution. The two purified nutrient solutions were subsequently used in the synthesis of a biofertilizer (secondary struvite) through precipitation, achieving an efficiency of 99.5%. The properties of the secondary struvite synthesized using N and P recovered from the waste were similar to secondary struvite formed using synthetic chemicals but the costs were higher due to the need to neutralize the acid-trapping solution, highlighting the need to further tune the process and make it economically more competitive. The high recycling rates of P and N achieved are encouraging and widen the possibility of replacing synthetic fertilizers, manufactured from finite sources, by secondary biofertilizers produced using nutrients extracted from wastes.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.wasman.2021.02.055pt_PT
dc.identifier.issn0956-053X
dc.identifier.slugcv-prod-2663032
dc.identifier.urihttp://hdl.handle.net/10400.2/11801
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectPhosphoruspt_PT
dc.subjectNitrogenpt_PT
dc.subjectStruvitept_PT
dc.subjectNutrient recyclingpt_PT
dc.subjectWaste valorizationpt_PT
dc.subjectSeawatept_PT
dc.titleA novel approach for nutrients recovery from municipal waste as biofertilizers by combining electrodialytic and gas permeable membrane technologiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage302pt_PT
oaire.citation.startPage293pt_PT
oaire.citation.titleWaste Managementpt_PT
oaire.citation.volume125pt_PT
person.familyNameCosta Oliveira
person.familyNameFerreira
person.familyNameLabrincha Baptista
person.givenNameVerónica
person.givenNameCélia
person.givenNameJoão António
person.identifierB-3984-2010
person.identifier.ciencia-id6318-20F3-86AF
person.identifier.ciencia-id931E-FBDE-2098
person.identifier.ciencia-idD819-2C2C-7A16
person.identifier.orcid0000-0001-6012-920X
person.identifier.orcid0000-0002-7456-2538
person.identifier.orcid0000-0003-4782-1685
person.identifier.scopus-author-id7003372169
rcaap.cv.cienciaid931E-FBDE-2098 | Célia Maria Dias Ferreira
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication424b7c16-b769-4618-8c1c-58b29b36e81a
relation.isAuthorOfPublicatione30010dd-0512-4da6-a0c9-910b47f18b4f
relation.isAuthorOfPublicationeec23928-f900-47ca-8d28-fc13d814779c
relation.isAuthorOfPublication.latestForDiscovery424b7c16-b769-4618-8c1c-58b29b36e81a

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
2021_WASTE_MANAGEMENT_Oliveira_et_al_novel_membranes-PUBLISHED.pdf
Size:
1.57 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.97 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Ambiente e Sustentabilidade | Artigos em revistas internacionais / Papers in international journals