Zeolite development from fly ash and utilization in lignite mine-water treatment

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dc.contributor.authorItskos, Grigorios
dc.contributor.authorKoutsianos, Athanasios
dc.contributor.authorKoukouzas, Nikolaos
dc.contributor.authorVasilatos, Charalampos
dc.creatorGrigorios, Itskos
dc.date.accessioned2017-12-26T10:04:27Z
dc.date.available2017-12-26T10:04:27Z
dc.date.issued2015-06-10
dc.description.abstractAbstract Fly ash from two lignite-fed power stations in Greece (Megalopolis and Meliti) has been utilized to synthesize zeolitic materials with upgraded adsorption capacity. Two different siliceous fly ash samples were subjected to hydrothermal treatment at fixed solid/liquid ratio and constant temperature. The zeolitic products have been characterized for their microstructure, chemical, and mineralogical composition by means of SEM, AAS, and XRD, respectively. The primary zeolitic crystals identified were phillipsite and thomsonite, in Megalopolis and Meliti fly ash, respectively. In light of their prospective utilization as liquid-phase sorbents, the specific surface area and porosity of materials were also determined, by means of N2-porosimetry. The zeolitic samples were tested for their actual heavy metal-removal capacity by water sampled from active lignite mines in Northern Greece. Artificial aquatic samples with known concentration of heavy metals (Cd, Cr, Cu, Ni, Pb, and Zn) were also tested, showing that the synthetic zeolitic materials are good to uptake a wide variety of potential pollutants with up to 100% efficiency. The efficiency of the synthetic zeolitic materials was comparatively assessed, showing that the more intense the presence of phillipsite in the synthetic materials, the greater the uptake rates for certain groups of trace elements.en_US
dc.identifierDOI:10.1016/j.minpro.2015.04.011
dc.identifier.citationGrigorios Itskos, Athanasios Koutsianos, Nikolaos Koukouzas, Charalampos Vasilatos, Zeolite development from fly ash and utilization in lignite mine-water treatment, In International Journal of Mineral Processing, Volume 139, 2015, Pages 43-50en_US
dc.identifier.issn03017516
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0301751615000940
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/3067
dc.language.isoenen_US
dc.publisherInternational Journal of Mineral Processingen_US
dc.relation.ispartofInternational Journal of Mineral Processing
dc.rights.licenseCopyright © 2015 Elsevier B.V. All rights reserved.
dc.subjectLigniteen_US
dc.subjectFly ashen_US
dc.subjectMine-wateren_US
dc.subjectZeolitesen_US
dc.subjectHeavy metalsen_US
dc.subjectAdsorptionen_US
dc.titleZeolite development from fly ash and utilization in lignite mine-water treatmenten_US
dc.typeArticleen_US
elsevier.aggregationtypeJournal
elsevier.coverdate2015-06-10
elsevier.coverdisplaydate10 June 2015
elsevier.endingpage50
elsevier.identifier.doi10.1016/j.minpro.2015.04.011
elsevier.identifier.eid1-s2.0-S0301751615000940
elsevier.identifier.piiS0301-7516(15)00094-0
elsevier.identifier.scopusid84929093448
elsevier.openaccess0
elsevier.openaccessarticlefalse
elsevier.openarchivearticlefalse
elsevier.startingpage43
elsevier.teaserFly ash from two lignite-fed power stations in Greece (Megalopolis and Meliti) has been utilized to synthesize zeolitic materials with upgraded adsorption capacity. Two different siliceous fly ash samples...
elsevier.volume139
workflow.import.sourcescience

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