Biomodification of coal to remove mercury.
Appl Biochem Biotechnol
; 129-132: 897-908, 2006.
Article
in En
| MEDLINE
| ID: mdl-16915698
A biological process for removal of mercury from coal is under investigation. Iron and sulfur oxidizing bacteria have previously been used for desulfurization of coal and for mineral mining. We have shown that removal of mercury from coal is also possible via the same principles. Two pure cultures, Leptospirillum ferrooxidans and Acidithiobacillus ferrooxidans and four environmental consortium samples obtained from an acid mine drainage site were studied for mercury removal from coal. Four different coal samples were included in the study and the preliminary results have shown that up to 20% of the mercury can be removed in batch cultures compared to control. Additional parameters such as media composition and inoculum size were also studied. This is the first report demonstrating successful leaching of mercury from coal using biological treatment.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Coal
/
Cell Culture Techniques
/
Bioreactors
/
Acidithiobacillus
/
Industrial Waste
/
Leptospira
/
Mercury
Language:
En
Journal:
Appl Biochem Biotechnol
Year:
2006
Document type:
Article
Affiliation country:
United States
Country of publication:
United States