Awoniran, AT, Ketheson, A, Piazolo, S orcid.org/0000-0001-7723-8170 et al. (1 more author) (2017) Legacy base metal slags can generate toxic leachates. In: Powder Diffraction. AXAA-2017: Australian X-ray Analytical Association workshops,conference, and exhibition, 05-09 Feb 2017, Melbourne, Australia. Cambridge University Press , S70-S77.
Abstract
Slags sourced from a derelict zinc–lead–copper–silver–tungsten mine were examined for their bulk elemental composition and mineralogy. pH, oxidation–reduction potential, and the leachability of selected elements (sulphur, calcium, iron, copper, zinc, and lead) were assessed during a 130-day deionised water extraction conducted under oxic conditions. Slags were rich in silicon, iron, copper, zinc, and lead, hosted within minerals including quartz (SiO2), goethite [FeO(OH)], augite [Ca(Mg,AI,Fe)Si2O6], and lead (Pb0). Leachates from the slags increased in analyte concentration throughout the 130-day experiment, with iron, copper, zinc, and lead attaining >5 mg l− 1 in some samples. These findings indicate that this pyrometallurgical waste should not be considered environmentally inert, as leachates emanating from them in the field might pose a significant risk to the environment.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Keywords: | slag; derelict mines; leachability; mineralogy; elemental composition |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 01 Jul 2020 14:17 |
Last Modified: | 01 Jul 2020 14:17 |
Status: | Published |
Publisher: | Cambridge University Press |
Identification Number: | 10.1017/s0885715617000999 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:162323 |