Application of Magnesium Oxide for Metal Removal in Mine Water Treatment
نویسندگان
چکیده
In this study low-grade magnesium oxide (MgO) produced by calcinations of natural magnesite was used in mine water treatment using a laboratory-column device. The from the abandoned Osor (NE Spain) with MgO showed removal metals both and tailing leachates. PHREEQC numerical code Geochemist’s Workbench (GWB) were to evaluate speciation dissolved constituents calculate saturation state effluents. analysis treated As (from 1.59 0.31 μg/L), Cd 1.98 <0.05 Co 19.1 <0.03 F 2730 200 Mn 841 0.6 Ni 17.9 <2 μg/L, U 9.16 0.08 Zn 2900 68.5 μg/L). Pb also removed 98 35.2 μg/L) contaminated leachates waste. mixing at room temperature may promote formation stabilizing agent composed hydroxides, carbonates, magnesium-silicate-hydrates (MSH), which remove Cd, Zn, similar sorption on MSH, substitution MSH lattice, precipitation or co-precipitation some hydrated phases.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2022
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su142315857