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  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Badania właściwości sorpcyjnych schwertmannitu
    (Data obrony: 2014-09-30) Motyka, Urszula
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    The aim of this study was the assessement of sorption properties of schwertmannite - a poorly ordered iron(III) hydroxysulphate, which is common in sulphide weathering zones. For this purpose, both natural samples from the Muskau Arch area and their synthetic analogues were used. The series of batch lead(II), chromate(VI) and arsenate(V) sorption experiments were carried out. It was stated, that synthetic schwertmannites exhibit distinctly better sorption properties . They were able to bind Pb(II) in the amounts reaching 350 mmol/kg, whilst the relevant value for natural samples did not exceed 216 mmol/kg. Maximum Cr(VI) and As(V) sorption reached 250 mmol/kg and 1350 mmol/kg, respectively for synthetic phases, while natural ones bound up to 187 mmol/kg and 887 mmol/kg, respectively. Nevertheless, both synthetic and natural schwertmannites appeared to possess very good sorption properties.