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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/61193
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dc.creatorMariana Araujo Teixeirapt_BR
dc.creatorAparecida Barbosa Magestetept_BR
dc.creatorAnderson Diaspt_BR
dc.creatorLuciano Sindra Virtuosopt_BR
dc.creatorKisla Prislen Félix Siqueirapt_BR
dc.date.accessioned2023-11-21T18:09:48Z-
dc.date.available2023-11-21T18:09:48Z-
dc.date.issued2018-
dc.citation.volume171pt_BR
dc.citation.spage275pt_BR
dc.citation.epage284pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jclepro.2017.10.010pt_BR
dc.identifier.issn0959-6526pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/61193-
dc.description.resumoThis work describes an environmentally-friendly procedure for the removal of manganese and fluoride from industrial wastewaters (IW) using layered double hydroxides (LDHs) and calcined layered double oxides (LDOs). Ternary Mg-Mn-Al LDHs (LDH-IW) were produced from IW containing a high concentration of manganese, which decreased from (99.420 ± 3.110) mg L−1 to (0.003 ± 0.001) mg L−1 after the synthesis procedure. Synthetic Mg-Al LDH was also produced for comparison purposes. Both materials were calcined and the resulting oxides (LDO and LDO-IW) were used for the removal of fluoride present in the same IW. The materials were characterized by X-ray diffraction, electron energy-loss spectroscopy, thermal analysis, Raman spectroscopy, and electron microscopy. The kinetics and adsorption isotherms for fluoride removal from aqueous solutions were studied in batch mode. For both LDO and LDO-IW, the adsorption of fluoride followed pseudo-second order reaction kinetics. Langmuir-type adsorption was observed for LDO, while adsorption by LDO-IW was according to the Freundlich model. The results showed that the oxides were able to remove 94% of the fluoride present in the IW at an initial concentration of 162 mg L−1. The procedure reduced the concentrations of the pollutants (manganese and fluoride) to levels that complied with Brazilian effluent standards.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of Cleaner Productionpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectWastewaterpt_BR
dc.subjectManganesept_BR
dc.subjectFluoridept_BR
dc.subjectPollutants removalpt_BR
dc.subjectLayered double hydroxidespt_BR
dc.subject.otherÁguas residuais - Purificaçãopt_BR
dc.subject.otherManganêspt_BR
dc.subject.otherFluorosept_BR
dc.subject.otherPoluentespt_BR
dc.subject.otherHidróxidospt_BR
dc.subject.otherRaios X - Difraçãopt_BR
dc.subject.otherAdsorçãopt_BR
dc.subject.otherEfluente - Qualidadept_BR
dc.titleLayered double hydroxides for remediation of industrial wastewater containing manganese and fluoridept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0959652617323016pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6344-3103pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6269-6774pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7413-1087pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9814-1394pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6344-3103pt_BR
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