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Microalgal-based biopolymer for nano- and microplastic removal: a possible biosolution for wastewater treatment

2020Journal article Open access
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dc.contributor.authorCunha, César
dc.contributor.authorSilva, Laura
dc.contributor.authorPaulo, Jorge
dc.contributor.authorFaria, Marisa
dc.contributor.authorNogueira, Natacha
dc.contributor.authorCordeiro, Nereida
dc.date.accessioned2021-04-15T20:12:02Z
dc.date.available2021-04-15T20:12:02Z
dc.date.issued2020
dc.description.abstractThe increasing water pollution caused by the presence of nano- and microplastics has shown a need to pursue solutions to remediate this problem. In this work, an extracellular polymeric substance (EPS) producing freshwater Cyanothece sp. strain was exposed to nano- and microplastics. The bioflocculant capacity of the biopolymer produced was evaluated. The influence of different concentrations (1 and 10 mg L-1) of polystyrene nano- and microplastics in the extracellular carbohydrates and in the EPS production was studied. The presence of nano- and microplastics induced a negative effect on the microalgal growth (of up to 47%). The results show that the EPS produced by Cyanothece sp. exhibits high bioflocculant activity in low concentrations. Also, the EPS displayed very favourable characteristics for aggregation, as the aggregates were confirmed to consist of microalga, EPS and both the nano- and microplastics. These results highlight the potential of the microalgal-based biopolymers to replace hazardous synthetic flocculants used in wastewater treatment, while aggregating and flocculating nano- and microplastics, demonstrating to be a multi-purposed, compelling, biocompatible solution to nano- and microplastic pollution.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCunha, C., Silva, L., Paulo, J., Faria, M., Nogueira, N., & Cordeiro, N. (2020). Microalgal-based biopolymer for nano-and microplastic removal: a possible biosolution for wastewater treatment. Environmental Pollution, 263, 114385.pt_PT
dc.identifier.doi10.1016/j.envpol.2020.114385pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3296
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCyanothece sp.pt_PT
dc.subjectMicroplasticspt_PT
dc.subjectNanoplasticspt_PT
dc.subjectExtracellular polymeric substances (EPS)pt_PT
dc.subjectBioflocculantpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleMicroalgal-based biopolymer for nano- and microplastic removal: a possible biosolution for wastewater treatmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issuePt Bpt_PT
oaire.citation.startPage114385pt_PT
oaire.citation.titleEnvironmental Pollutionpt_PT
oaire.citation.volume263pt_PT
person.familyNameCunha
person.familyNameFaria
person.familyNamecordeiro
person.givenNameCésar
person.givenNameMarisa Camacho Gonçalves
person.givenNamenereida
person.identifier1612636
person.identifier.ciencia-idEC12-B90B-BA98
person.identifier.ciencia-idD716-6F48-AD0E
person.identifier.ciencia-id521A-0F62-EA39
person.identifier.orcid0000-0003-3811-2932
person.identifier.orcid0000-0002-9158-6961
person.identifier.orcid0000-0001-6006-3415
person.identifier.ridO-2253-2019
person.identifier.scopus-author-id7004319456
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication78f9a06c-3911-42c4-9899-45aafac82c73
relation.isAuthorOfPublication57ef72f0-8e40-4853-b4ab-416884e127fa
relation.isAuthorOfPublication3d02b657-c48c-4f56-813a-1284b81960f3
relation.isAuthorOfPublication.latestForDiscovery78f9a06c-3911-42c4-9899-45aafac82c73

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