Abstract
AbstractThis review critically examines the effects of AMD from the gold mines of South Africa and available options. We also critically analyse case studies, research gaps, and the challenges and opportunities presented by the AMD. Our assessment indicates the availability of potential technological advancements that might flip the paradigm in favour of less sludge being produced, lower operational costs, and more effective AMD treatment strategies. This has led to the development of long-term plans for AMD treatment technologies and the recovery of important minerals. There is currently a demand for integrated AMD technologies that take a holistic approach to long-term AMD treatment. Reusing water and recovering valuable resources like sulphuric acid, rare earth elements, and other metals have received a lot of attention. Continued study and implementation of such strategies will support sustainable gold mining, address the environmental damage caused by AMD, and optimize resource and revenue-generating potentials.
Funder
Council for Scientific and Industrial Research
Publisher
Springer Science and Business Media LLC
Reference38 articles.
1. Akcil A, Koldas S (2006) Acid Mine Drainage (AMD): causes, treatment, and case studies. J Clean Prod 14:1139–1145. https://doi.org/10.1016/j.jclepro.2004.09.006
2. Ambani A-E, Annegarn H (2015) A reduction in mining and industrial effluents in the Blesbokspruit Ramsar Wetland, South Africa: has the quality of the surface water in the wetland improved? Water SA 41:648–659. https://doi.org/10.4314/WSA.V41I5.08
3. Aubé BC, Zinck JM (1999) Comparison of AMD treatment processes and their impact on sludge characteristics. Proc Sudbury 99:261–270
4. Battsengel A (2018) Recovery of Rare Earth elements from apatite ores by hydrometallurgical processes. PhD Diss, Akita Univ
5. Borra CR, Pontikes Y, Binnemans K, Van Gerven T (2015) Leaching of rare earths from bauxite residue (red mud). Min Eng 76:20–27. https://doi.org/10.1016/j.mineng.2015.01.005