Bacteria from the genus Acidithiobacillus are often associated with biominingand acid mine drainage. Biomining utilises acidophilic, sulphur and ironoxidising microorganisms for recovery of metals from sulphidic low grade oresand concentrates. Acid mine drainage results in acidification and contaminationwith metals of soil and water emanating from the dissolution of metal sulphidesfrom deposits and mine waste storage. Acidophilic microorganisms…
Contents
1. INTRODUCTION
1.1 General characteristics of the Acidithiobacillus genus
1.1.1 Classification
1.1.2 Natural habitats and growth requirements
1.1.3 Iron and RISCs in natural and mining environments
1.1.4 The sulphur cycle and acidithiobacilli
1.1.5 Genetic manipulations in Acidithiobacillus spp.
1.1.6 Importance in industry and other applications
1.2 Acidithiobacillus spp. RISC and iron oxidation
1.2.1 RISC oxidation by Acidithiobacillus spp.
1.2.2 A. ferrooxidans iron oxidation and regulation
1.3 Mineral sulphide oxidation
1.4 Acid mine and rock drainage
1.5 Biomining
1.5.1 Biomining as an industrial process
1.5.2 Acidophilic microorganisms in industrial bioleaching
2. AIMS OF THE STUDY
3. RESULTS AND DISCUSSION
4. CONCLUSIONS….
Source: Umea University
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