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Heavy Metal Mining Using Microbes
Abstract
▪ Abstract The use of acidiphilic, chemolithotrophic iron- and sulfur-oxidizing microbes in processes to recover metals from certain types of copper, uranium, and gold-bearing minerals or mineral concentrates is now well established. During these processes insoluble metal sulfides are oxidized to soluble metal sulfates. Mineral decomposition is believed to be mostly due to chemical attack by ferric iron, with the main role of the microorganisms being to reoxidize the resultant ferrous iron back to ferric iron. Currently operating industrial biomining processes have used bacteria that grow optimally from ambient to 50°C, but thermophilic microbes have been isolated that have the potential to enable mineral biooxidation to be carried out at temperatures of 80°C or higher. The development of higher-temperature processes will extend the variety of minerals that can be commercially processed.
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Citations
Cited by
Metals, minerals and microbes: geomicrobiology and bioremediation
Gadd, G. M. (2010) · Microbiology · doi:10.1099/mic.0.037143-0 · Cited by 2,013
Redox Transformations of Iron at Extremely Low pH: Fundamental and Applied Aspects
Johnson, D. B., Kanao, T., & Hedrich, S. (2012) · Frontiers in Microbiology · doi:10.3389/fmicb.2012.00096 · Cited by 401
Quina, M. J., Bontempi, E., Bogush, A., Schlumberger, S., Weibel, G., Braga, R., Funari, V., Hyks, J., Rasmussen, E., & Lederer, J. (2018) · Science of The Total Environment · doi:10.1016/j.scitotenv.2018.04.150 · Cited by 318
Microbial stratification in low pH oxic and suboxic macroscopic growths along an acid mine drainage
Méndez-García, C., Mesa, V., Sprenger, R. R., Richter, M., Diez, M. S., Solano, J., Bargiela, R., Golyshina, O. V., Manteca, Á., Ramos, J. L., et al. (2014) · The ISME Journal · doi:10.1038/ismej.2013.242 · Cited by 101
Volger, R., Pettersson, G. M., Brouns, S. J. J., Rothschild, L. J., Cowley, A., & Lehner, B. A. E. (2020) · Planetary and Space Science · doi:10.1016/j.pss.2020.104850 · Cited by 43
Metadata
- Authors
- Rawlings, D. E.
- Venue
- Annual Review of Microbiology
- Publisher
- Annual Reviews
- Published
- 2002-10
- Volume
- 56
- Issue
- 1
- Pages
- 65-91
- ISSN
- 0066-4227 (ISSN-L)
- 1545-3251
- OpenAlex
- W2141447208
- Cited by
- 673
- References
- 0
- FWCI
- 1.95
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
