Physical and Chemical Characterization of an Abandoned Layered Pb-Zn Mine Tailing

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dc.contributor.advisorKovács, Elza
dc.contributor.authorVargas Espín, Danny Fernando
dc.contributor.departmentDE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási Karhu_HU
dc.date.accessioned2016-11-08T10:22:26Z
dc.date.available2016-11-08T10:22:26Z
dc.date.created2016-10-28
dc.description.abstractA physical and chemical characterization of an abandoned Pb-Zn mine located in Gyongyosoroszi-Hungary was carried out in tailing samples assuming a saturated state owing to precipitation. Results showed that mine waste behave physically as a well graded permeable sand. Besides, precipitation can produce and effective vertical stress of 0.89 kPa compared to unsaturated conditions. A rapid rise in water table of 2.21 m over the ground surface is neccesary to produce liquefaction. Chemical characterization carried out by SEM and XRF analyisis showed that iron (Fe) and sulfur (S) were the dominat elements. Thereby, pyrite (FeS2) was preliminary suspected and confirmed with the oxidation kinetics. Indeed, oxidation of the pyrite in the tailings is a rapid reaction in the first orden of magnitude with a reduction of pH along with SO42- and Fe3+ production. Finally, geochemical modelling at equilibrium was applied by using MINTEQ. Saturation index (SI) showed that Fe3+ precipitates as goethite, hematite and lepidocrocite. Conversely, hydroniumjarosite dissolution is produced.hu_HU
dc.description.courseAgricultural Environmental Management Engineeringhu_HU
dc.description.degreeMSc/MAhu_HU
dc.format.extent36hu_HU
dc.identifier.urihttp://hdl.handle.net/2437/231847
dc.language.isoen_UShu_HU
dc.subjectPbhu_HU
dc.subjectZnhu_HU
dc.subjectmine tailinghu_HU
dc.subjectcharacterizationhu_HU
dc.subject.dspaceDEENK Témalista::Mezőgazdaságtudományhu_HU
dc.titlePhysical and Chemical Characterization of an Abandoned Layered Pb-Zn Mine Tailinghu_HU
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