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Browsing by Subject "rudy cynku"

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    Item type:Doctoral Dissertation, Access status: Open Access ,
    Geochemia $Tl, As, Cd, Pb$ w rudach oraz odpadach hutniczych $Zn-Pb$ Górnego Śląska
    (2006-02-27) (Data obrony: 2008) Rajchel, Bernadeta
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    The purpose of doctoral thesis was: determination ot geochemical characteristics, concentration and forms of occurrence of Pb, Cd, As. and Tl in exploited Zn-Pb ores and in stored away industry in Silesian District. The research were conducted with wide employment of instrumental method of analysis of chemical composition and mineral phases (light reflected microscope, microprobe, SEM, nuclear spectroscopy and Raman spectroscopy, XRD, camera Gandolfi, TEM, ICP-MS, AAS). Geochemical research of Silesian ore minerals showed, that some of them include high concentrations of trace elements. These are Pb, Cd, As, and Tl. Main form controlling migration and precipitation of Pb, As and Tl is a new group of mineral revealed with intermediated and mixed sulfur valences (oxysulphides) was found. These minerals were omitted in mineralogical descriptions due to unsuitable technique of preparation of confection with use of water so far. Oxysulphides, due to their features, will be diluted easily in the mine waters, as well as in flotation medium, causing a very fast increase of pollutions.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Wpływ historycznej aktywności kopalni rud cynku i ołowiu na zanieczyszczenia osadów rzeki Matylda (okolice Chrzanowa)
    (Data obrony: 2010-07-29) Jędrosz, Marta
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    This thesis concerns the degree of pollution of Cd, Zn and Pb deposits of the Matylda River channel (Chrzanow region). Therefore, collected 19 samples of bottom sediments from about 9 km river section, wherein examined the pH and Eh and determined the contents of Cd, Zn and Pb by ICP-MS method. Collected also 9 samples of water,wherein specified pH, electrolytic conductivity, examined the content of major anions and cations, and selected heavy metals determined. The obtained values of heavy metals in sediments reached the highest concentrations of Cd - 458 mg/kg, Pb - 58,456 mg/kg and Zn - 86,814 mg/kg. These quantities highly exceed both the background adopted for the local Polish rivers and the local geochemical background. It was found that very high concentrations of elements must be the result of multi-channel discharge into the Matylda River, mine water from the lead and zinc mine Matylda.