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Simultaneous removal of trace elements from contaminated waters by living Ulva lactuca

2018-10-22Journal article Restricted access
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dc.contributor.authorHenriques, Bruno
dc.contributor.authorTeixeira, Ana
dc.contributor.authorFigueira, Paula
dc.contributor.authorReis, Ana T.
dc.contributor.authorAlmeida, Joana
dc.contributor.authorVale, Carlos
dc.contributor.authorPereira, Eduarda
dc.date.accessioned2019-03-27T11:55:06Z
dc.date.available2019-03-27T11:55:06Z
dc.date.issued2018-10-22
dc.description.abstractThis work shows the capabilities of living seaweed, Ulva lactuca, to remove As, Cd, Pb, Cu, Cr, Hg, Mn and Ni from contaminated waters. Experiments were performed with three algal doses (1.5, 3.0 and 6.0 g L-1, FW), two ionic strengths (salinity 15 and 35), and trace element concentrations corresponding to the maximum allowed values in wastewaters. The highest removals were obtained with the algal dose of 6 g L-1, with efficiencies varying between 48% for As and 98% for Hg, after 24 to 72 h. Salinity showed no effect on the removal efficiency. Overall, Elovich model was the best in describing the kinetics of the process, except for Hg, where pseudo-second-order model performed better. The use of extractions with EDTA (0.001, 0.01 to 0.1 mol L-1) has clarified that most of the Hg (≈98%) and Cr (≈80%) crossed the macroalgae walls, while Ni, Cd and As were retained at the surface (between 60 and 80%). These results support the hypothesis that macroalgae-based technologies may be a viable, cost-effective, and greener option to reduce the rejection of priority hazardous substances in contaminated waters.pt_PT
dc.description.sponsorshipThanks to the University of Aveiro and FCT/MEC for the financial support to CESAM and CIIMAR (UID/AMB/50017/2013; UID/Multi/04423/2013) through national funds and, where applicable, cofinanced by the FEDER, within the PT2020 Partnership Agreement. The work benefited from the structured program INNOVMAR (NORTE-01-0145-FEDER-000035). Bruno Henriques also would like to acknowledge the Portuguese Foundation for Science and Technology (FCT) for the financial support under the postdoctoral grant SFRH/BPD/112576/2015.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSci Total Environ. 2019 Feb 20;652:880-888. doi: 10.1016/j.scitotenv.2018.10.282. Epub 2018 Oct 22pt_PT
dc.identifier.doi10.1016/j.scitotenv.2018.10.282pt_PT
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.18/6327
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://linkinghub.elsevier.com/retrieve/pii/S0048-9697(18)34173-1pt_PT
dc.subjectMercurypt_PT
dc.subjectMetals, Heavypt_PT
dc.subjectSalinitypt_PT
dc.subjectSeaweedpt_PT
dc.subjectTrace Elementspt_PT
dc.subjectUlvapt_PT
dc.subjectWater Pollutants, Chemicalpt_PT
dc.subjectWater Pollutionpt_PT
dc.subjectBiodegradation, Environmentalpt_PT
dc.subjectÁgua e Solopt_PT
dc.titleSimultaneous removal of trace elements from contaminated waters by living Ulva lactucapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAMB%2F50017%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04423%2F2013/PT
oaire.citation.endPage888pt_PT
oaire.citation.startPage880pt_PT
oaire.citation.titleScience of the Total Environmentpt_PT
oaire.citation.volume652pt_PT
oaire.fundingStream5876
oaire.fundingStream5876
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
rcaap.embargofctPolítica editorial da revista.pt_PT
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication1d7db62a-6440-4ccb-a5cc-c3f76c8585b3
relation.isProjectOfPublication3ff7f966-f2b6-411e-963d-b86ed422d42e
relation.isProjectOfPublication.latestForDiscovery1d7db62a-6440-4ccb-a5cc-c3f76c8585b3

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