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Removal of heavy metals from wastewater using CFB-coal fly ash zeolitic materials

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dc.contributor.author Koukouzas, N en
dc.contributor.author Vasilatos, C en
dc.contributor.author Itskos, G en
dc.contributor.author Mitsis, I en
dc.contributor.author Moutsatsou, A en
dc.date.accessioned 2014-03-01T01:34:26Z
dc.date.available 2014-03-01T01:34:26Z
dc.date.issued 2010 en
dc.identifier.issn 0304-3894 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/20733
dc.subject CFB en
dc.subject Coal fly ash en
dc.subject Heavy metals en
dc.subject Synthetic zeolites en
dc.subject Water treatment en
dc.subject.classification Engineering, Environmental en
dc.subject.classification Engineering, Civil en
dc.subject.classification Environmental Sciences en
dc.subject.other Cation exchange capacities en
dc.subject.other CFB en
dc.subject.other Chemical compositions en
dc.subject.other Coal fly ash en
dc.subject.other Energy dispersive x-ray en
dc.subject.other Macro-porosity en
dc.subject.other Main parameters en
dc.subject.other Mineralogical compositions en
dc.subject.other NaOH solutions en
dc.subject.other Pilot scale en
dc.subject.other Scanning Electron Microscope en
dc.subject.other Specific gravity en
dc.subject.other Synthetic zeolites en
dc.subject.other X ray fluorescence en
dc.subject.other Zeolitic materials en
dc.subject.other Chromium en
dc.subject.other Coal en
dc.subject.other Coal ash en
dc.subject.other Coal combustion en
dc.subject.other Coal industry en
dc.subject.other Density (specific gravity) en
dc.subject.other Fluidization en
dc.subject.other Fluidized bed combustion en
dc.subject.other Fluidized beds en
dc.subject.other Fly ash en
dc.subject.other Heavy water en
dc.subject.other Hybrid materials en
dc.subject.other Lead en
dc.subject.other Metal recovery en
dc.subject.other Metals en
dc.subject.other Scanning electron microscopy en
dc.subject.other Silicate minerals en
dc.subject.other Synthetic metals en
dc.subject.other Wastewater en
dc.subject.other Wastewater treatment en
dc.subject.other X ray diffraction en
dc.subject.other Zeolites en
dc.subject.other Zinc en
dc.subject.other Chemicals removal (water treatment) en
dc.subject.other cadmium en
dc.subject.other chromium en
dc.subject.other coal en
dc.subject.other copper en
dc.subject.other heavy metal en
dc.subject.other lead en
dc.subject.other nickel en
dc.subject.other sodium hydroxide en
dc.subject.other zeolite en
dc.subject.other zinc en
dc.subject.other activation energy en
dc.subject.other adsorption en
dc.subject.other aqueous solution en
dc.subject.other bioreactor en
dc.subject.other cation exchange capacity en
dc.subject.other chemical composition en
dc.subject.other coal en
dc.subject.other combustion en
dc.subject.other experimental study en
dc.subject.other fly ash en
dc.subject.other heavy metal en
dc.subject.other pH en
dc.subject.other porosity en
dc.subject.other scanning electron microscopy en
dc.subject.other size distribution en
dc.subject.other surface area en
dc.subject.other wastewater en
dc.subject.other water treatment en
dc.subject.other X-ray diffraction en
dc.subject.other X-ray fluorescence en
dc.subject.other zeolite en
dc.subject.other adsorption kinetics en
dc.subject.other article en
dc.subject.other cation exchange en
dc.subject.other chemical analysis en
dc.subject.other chemical composition en
dc.subject.other controlled study en
dc.subject.other fluidized bed en
dc.subject.other fly ash en
dc.subject.other heavy metal removal en
dc.subject.other mineralogy en
dc.subject.other particle size en
dc.subject.other pH measurement en
dc.subject.other porosity en
dc.subject.other precipitation en
dc.subject.other relative density en
dc.subject.other scanning electron microscopy en
dc.subject.other surface property en
dc.subject.other synthesis en
dc.subject.other waste water management en
dc.subject.other water contamination en
dc.subject.other X ray diffraction en
dc.subject.other X ray fluorescence en
dc.subject.other Carbon en
dc.subject.other Hydrogen-Ion Concentration en
dc.subject.other Ion Exchange en
dc.subject.other Metals, Heavy en
dc.subject.other Microscopy, Electron, Scanning en
dc.subject.other Particulate Matter en
dc.subject.other Porosity en
dc.subject.other Specific Gravity en
dc.subject.other Thermodynamics en
dc.subject.other Waste Disposal, Fluid en
dc.subject.other Water Pollutants, Chemical en
dc.subject.other Water Purification en
dc.subject.other Zeolites en
dc.title Removal of heavy metals from wastewater using CFB-coal fly ash zeolitic materials en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.jhazmat.2009.08.126 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.jhazmat.2009.08.126 en
heal.language English en
heal.publicationDate 2010 en
heal.abstract Polish bituminous (PB) and South African (SA) coal fly ash (FA) samples, derived from pilot-scale circulated fluidized bed (CFB) combustion facilities, were utilized as raw materials for the synthesis of zeolitic products. The two FAs underwent a hydrothermal activation with I M NaOH solution. Two different FA/NaOH solution/ratios (50, 100 g/L) were applied for each sample and several zeolitic materials were formed. The experimental products were characterized by means of X-ray diffraction (XRD) and energy dispersive X-ray coupled-scanning electron microscope (EDX/SEM), while X-ray fluorescence (XRF) was applied for the determination of their chemical composition. The zeolitic products were also evaluated in terms of their cation exchange capacity (CEC), specific surface area (SSA). specific gravity (SG), particle size distribution (PSD), pH and the range of their micro- and macroporosity. Afterwards the hybrid materials were tested for their ability of adsorbing Cr, Pb, Ni, Cu, Cd and Zn from contaminated liquids. Main parameters for the precipitation of the heavy metals, as it was concluded from the experimental results, are the mineralogical composition of the initial fly ashes, as well as the type and the amount of the produced zeolite and specifically the mechanism by which the metals ions are hold on the substrate. (C) 2009 Elsevier B.V. All rights reserved. en
heal.publisher ELSEVIER SCIENCE BV en
heal.journalName Journal of Hazardous Materials en
dc.identifier.doi 10.1016/j.jhazmat.2009.08.126 en
dc.identifier.isi ISI:000273135600083 en
dc.identifier.volume 173 en
dc.identifier.issue 1-3 en
dc.identifier.spage 581 en
dc.identifier.epage 588 en


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