Evaluating acidithiobacillus ferrooxidans bacterial oxidation of sulphur compounds using ftir and x-ray diffraction assays
A native bacterial strain capable of oxidising ferrous iron and sulphur compounds was isolated from effluent and material from the La Maruja gold mine in the municipality of Marmato (Caldas); this was biochemically identified as being Acidithiobacillus ferrooxidans. This strain's ability to oxi...
- Autores:
-
Muñoz, Alexandra
Márquez, Marco A.
Montoya, Olga I.
Ruiz, Orlando
Lemehsko, Victor
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2003
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/22187
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/22187
http://bdigital.unal.edu.co/13221/
- Palabra clave:
- biooxidación
biolixiviación
A. ferrooxidans
sulfuros metálicos
bio-oxidation
bio-leaching
A. ferrooxidans
sulphides
- Rights
- closedAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | A native bacterial strain capable of oxidising ferrous iron and sulphur compounds was isolated from effluent and material from the La Maruja gold mine in the municipality of Marmato (Caldas); this was biochemically identified as being Acidithiobacillus ferrooxidans. This strain's ability to oxidise metallic sulphide concentrates having two differ-ent pulp proportions and two particle sizes was evaluated. Sulphide bio-oxidation was observed after 15 days showing this strain's catalytic action on the mineral break-down process. Key words: bio-oxidation; bio-leaching; A. ferrooxidans; sulphides |
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