Extracting resources from abandoned mines
Zhongwen Bao1, Carol J Ptacek1, David W Blowes1
1Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON, Canada.
Science (New York, N.Y.)
|August 17, 2023
Summary
Recovering critical minerals and metals from abandoned mines offers a sustainable solution for decarbonization efforts. This approach can significantly reduce the environmental impact associated with traditional mining practices.
Area of Science:
- Environmental Science
- Materials Science
- Geology
Background:
- Abandoned mines pose environmental risks and represent untapped resources.
- The increasing demand for minerals and metals is driven by green technologies.
Purpose of the Study:
- To evaluate the potential of recovering valuable minerals and metals from abandoned mine sites.
- To assess the contribution of this recovery process to global decarbonization goals.
Main Methods:
- Geochemical analysis of mine waste and tailings.
- Development and testing of novel extraction techniques.
- Life cycle assessment of the recovery process.
Main Results:
- Significant concentrations of critical minerals and metals identified in surveyed abandoned mine sites.
- Demonstrated feasibility of efficient and environmentally sound extraction methods.
- Quantified reduction in carbon footprint compared to primary mining.
Conclusions:
- Reprocessing abandoned mines is a viable strategy for sustainable mineral and metal sourcing.
- This approach can significantly contribute to decarbonization by reducing reliance on new mining and associated emissions.
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