Microbially Mediated Mineral Carbonation: Roles of Phototrophy and Heterotrophy

• Published in: Environmental science & technology Vol. 45; no. 20; pp. 9061 - 9068
• Main Authors: Power, Ian M., Wilson, Sasha, Small, Darcy P., Dipple, Gregory M., Wan, Wankei, Southam, Gordon
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 15.10.2011
• Subjects: Applied sciences; Biodegradation, Environmental; Biomass; Carbon Dioxide - metabolism; Carbon sequestration; Chemical precipitation; Climatology. Bioclimatology. Climate change; Earth, ocean, space; Emissions control; Energy and the Environment; Exact sciences and technology; External geophysics; Heterotrophic Processes - physiology; Meteorology; Minerals; Minerals - metabolism; Mines; Mining; Other industrial wastes. Sewage sludge; Phototrophic Processes - physiology; Pollution; Wastes; Water Microbiology; Australia; Western Australia; Oceania; Canada; Western Australia Australia; Phototrophy; Microbial activity; Chemical precipitation; Heterotrophy; CO2 sequestration; Sustainable development; Carbon sequestration; Tailings; Dynamical climatology; Mitigation; Climate change; Biogeochemistry; Biotransformation; Greenhouse gas; Solid waste; Carbonation; Leachate; Mining waste

Ultramafic mine tailings from the Diavik Diamond Mine, Canada and the Mount Keith Nickel Mine, Western Australia are valuable feedstocks for sequestering CO2 via mineral carbonation. In microcosm experiments, tailings were leached using various dilute acids to produce subsaline solutions at circumne...