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Microbially mediated carbon dioxide removal for sustainable mining
Jenine McCutcheon1, Ian M Power2
1Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, Canada.
Plos Biology
|March 21, 2023
Summary
Harnessing microbial processes in mine tailings offers a dual solution for critical mineral recovery and carbon dioxide removal, paving the way for a sustainable mining future.
Area of Science:
- Environmental Science
- Biotechnology
- Geochemistry
Background:
- The escalating climate crisis demands innovative carbon dioxide removal strategies.
- Increased global demand for critical minerals requires sustainable extraction methods.
Purpose of the Study:
- To explore the potential of microbial processes for simultaneous metal recovery and carbon sequestration in mine tailings.
- To advance greener and more sustainable practices within the mining industry.
Main Methods:
- Investigating microbial consortia capable of bioremediation and biomineralization.
- Analyzing the geochemical interactions within mine tailings under microbial influence.
- Quantifying carbon dioxide uptake and metal recovery efficiencies.
Main Results:
- Demonstrated feasibility of using microbial processes for metal recovery from mine tailings.
- Confirmed the capacity of these microbial systems to sequester carbon dioxide.
- Identified specific microbial pathways involved in the dual-function process.
Conclusions:
- Microbial interventions present a viable pathway to transform mine tailings into resource recovery and carbon storage sites.
- This approach supports the development of a circular economy in mining, aligning with environmental sustainability goals.
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