Geochemical classification of global mine water drainage
Sustainability (Switzerland), ISSN: 2071-1050, Vol: 12, Issue: 24, Page: 1-16
2020
- 32Citations
- 62Captures
- 1Mentions
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Sustainability, Vol. 12, Pages 10244: Geochemical Classification of Global Mine Water Drainage
Sustainability, Vol. 12, Pages 10244: Geochemical Classification of Global Mine Water Drainage Sustainability doi: 10.3390/su122410244 Authors: Sandisiwe Khanyisa Thisani Daramy Vondi Von Kallon Patrick Byrne
Article Description
This paper evaluates the geochemical distribution and classification of global Acid Mine Drainage (AMD) sources. The geochemical compositions of AMD from 72 mine water sites in 18 countries across 6 continents were referenced from literature. The secondary data were analysed for statistical distribution and mine water classification against the Hill (1968) framework. The research found that the global mine water displayed geochemical concentrations within 2%, 11%, 5%, 9% and 8% of the aluminium, sulphate, acidity, total iron and zinc distribution ranges, respectively, at the 75th percentile. The study also found that 46%, 11.1% and 2.7% of mine water sites met the criteria for Class I, Class II and Class III of the Hill (1968) framework, respectively, while the remaining 40% of sites were omitted by the framework’s geochemical specifications. The results were used to optimise the Hill (1968) framework. The revised framework was proposed for effective AMD geochemical classification, regulation and remediation.
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