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  • Leaching and geochemical modelling of an electric arc furnace (EAF) and ladle slag heap [Elektronski vir]
    Loncnar, Mojca ...
    Old metallurgical dumps across Europe represent a loss of valuable land and a potential threat to the environment, especially to groundwater (GW). The Javornik electric arc furnace (EAF) and ladle ... slag heap, situated in Slovenia, was investigated in this study. The environmental impact of the slag heap was evaluated by combining leaching characterization tests of landfill samples and geochemical modelling. It was shown that throughout the landfill the same minerals and sorptive phases control the leaching of elements of potential concern, despite variations in chemical composi- tion. Although carbonation of the disposed steel slags occurred (molar ratio CO3/(Ca+Mg) = 0.53) relative to fresh slag, it had a limited effect on the leaching behaviour of elements of potential concern. The leaching from the slag heaps had also a limited effect on the quality of the GW. A site-specific case, however, was that leachates from the slag heap were strongly diluted, since a rapid flow of GW fed from the nearby Sava River was observed in the landfill area. The sampling and testing approach applied provides a basis for assessing the long-term impact of release and is a good starting point for evaluating future management options, including beneficial uses for this type of slag.
    Vir: Toxics : Elektronski vir. - ISSN 2305-6304 (Vol. 10, iss. 1, Jan. 2022, str. 1-21)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2022
    Jezik - angleški
    COBISS.SI-ID - 92336899

    Povezava(-e):

    https://www.mdpi.com/2305-6304/10/1/10
    Repozitorij Univerze v Ljubljani – RUL
    DiRROS - Digitalni repozitorij raziskovalnih organizacij Slovenije
    DOI

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