
Kinetics of Sulfur Oxidation at Suboptimal Temperature
The microbiological oxidation of iron and sulfur constitutes two key processes in mineral biotechnology. Both mesophilic and thermophilic bacteria have been described which can utilize inorganic compounds of Fe and S as electron donors (3, 5, 6). At present, although thermophiles are characterized by superior oxidation rates, only mesophilic iron- and sulfur-oxidizing acidophiles are used in large-scale leaching processes for metal recovery from sulfide ores.
Ahonen, L. and Tuovinen, O.H. 1990. Kinetics of sulfur oxidation at suboptimal temperature. Applied and Environmental Microbiology, v. 56, p. 560-562
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Snapshots Updated
The Forest Service is considering five reasonable action alternatives for a Tailings Storage Facility. To view Snapshot summaries and accompanying maps, click here.
EIS Status - Feb 2019
- Proponent submits revised Plan of Operations [Sep 2014]
- Federal Register Notice of Intent to prepare EIS [Mar 2016]
- Public scoping period and scoping meetings
[5 meetings between Mar-Jun 2016; comment period extended from 60 days to 120 days, closed Jul 18, 2016 ] - Compile and review existing data
- Prepare project description and identify project alternatives
- Publish Alternatives Evaluation Report [Sep 2017]
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We Are HereValidate Baseline Information; analyze environmental effects
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Prepare Draft EIS
- Federal Register Notice of Availability of Draft EIS
- 45-day public review and comment period, with public meetings
- Respond to public comments and prepare Final EIS
- Federal Register Notice of Availability of Final EIS and Draft ROD
- 45-day Public Objection Period
- Resolve objections to Final EIS and draft ROD
- Issue Final Record of Decision
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Media & General Info
John Scaggs
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Project Manager
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Mary Rasmussen
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Apache Leap Special Management Area
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