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Biomass fly ashes as low-cost chemical agents for Pb removal from synthetic and industrial wastewaters

2014Journal article Open access
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dc.contributor.authorBarbosa, Rui
dc.contributor.authorLapa, Nuno
dc.contributor.authorLopes, Helena
dc.contributor.authorGunther, Annika
dc.contributor.authorDias, Diogo
dc.contributor.authorMendes, Benilde
dc.date.accessioned2014-08-14T11:53:34Z
dc.date.available2014-08-14T11:53:34Z
dc.date.issued2014
dc.description.abstractThe main aim of this work was to study the removal efficiency of Pb from synthetic and industrial wastewaters by using biomass fly ashes. The biomass fly ashes were produced in a biomass boiler of a pulp and paper industry. Three concentrations of Pb2+ were tested in the synthetic wastewater (1, 10 and 1000 mg Pb/L). Moreover, two different wastewaters were collected in an industrial wastewater treatment plant (IWWTP) of an industry of lead-acid batteries: (i) wastewater of the equalization tank, and (ii) IWWTP effluent. All the wastewaters were submitted to coagulation–flocculation tests with a wide range of biomass fly ashes dosage (expressed as Solid/Liquid – S/L – ratios). All supernatants were characterized for chemical and ecotoxicological parameters. The use of biomass fly ashes has reduced significantly the Pb concentration in the synthetic wastewater and in the wastewaters collected in the IWWTP. For example, the definitive coagulation–flocculation assays performed over the IWWTP effluent presented a very low concentration of Pb (0.35 mg/L) for the S/L ratio of 1.23 g/L. Globally, the ecotoxicological characterization of the supernatants resulting from the coagulation–flocculation assays of all wastewaters has indicated an overall reduction on the ecotoxicity of the crude wastewaters, due to the removal of Pb.por
dc.identifier.citationBarbosa, R.; Lapa, N.; Lopes, H.; Gunther, A.; Dias, D.; Mendes, B. Biomass fly ashes as low-cost chemical agents for Pb removal from synthetic and industrial wastewaters. In: Journal of Colloid and Interface Science, 2014, Vol. 424, p. 27-36por
dc.identifier.issn0021-9797
dc.identifier.urihttp://hdl.handle.net/10400.9/2520
dc.language.isoengpor
dc.publisherElsevierpor
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.jcis.2014.03.013por
dc.subjectBiomasspor
dc.subjectAshespor
dc.subjectEcotoxicitypor
dc.subjectIndustrial wastewaterspor
dc.subjectLead-acid batteriespor
dc.titleBiomass fly ashes as low-cost chemical agents for Pb removal from synthetic and industrial wastewaterspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage36por
oaire.citation.startPage27por
oaire.citation.titleJournal of Colloid and Interface Sciencepor
oaire.citation.volume424por
person.familyNameLapa
person.familyNameLopes
person.familyNameDias
person.givenNameNuno
person.givenNameHelena
person.givenNameDiogo
person.identifier90528
person.identifier.ciencia-id5A14-EADB-672D
person.identifier.orcid0000-0001-7862-7477
person.identifier.orcid0000-0001-9378-5254
person.identifier.orcid0000-0002-9757-1605
person.identifier.ridK-8456-2013
person.identifier.ridL-4824-2017
person.identifier.ridC-4035-2015
person.identifier.scopus-author-id6602694802
person.identifier.scopus-author-id18437851600
person.identifier.scopus-author-id55385919600
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication59ceb800-1000-4455-8fe9-276d309bcc4a
relation.isAuthorOfPublicationab9b3ab7-7989-40cc-adb4-b2ace14451ca
relation.isAuthorOfPublication75e0d4f2-7dd1-4fbb-a03a-37d712fea782
relation.isAuthorOfPublication.latestForDiscovery59ceb800-1000-4455-8fe9-276d309bcc4a

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