Electrochemistry of Thiobacillus ferrooxidans reactions with pyrite

Technical Report · Mon Jan 01 00:00:00 EST 1990

DOI:https://doi.org/10.2172/6224444· OSTI ID:6224444

Pesic, B; Oliver, D J

The objective of this project is to provide the fundamental information on the mechanisms of bacterial leaching of pyrite. The knowledge of how bacterial leaching of pyrite functions is essential for design and development of a technology for coal cleaning with bacteria. The features of major electrochemical techniques will be examined to find out if any of them can provide a diagnostic information on the mechanisms of related reactions. The research was focused on how to improve the chemical activity of bacteria. Two major approaches were undertaken. One was to provide more nutrient salts. It was anticipated that by providing higher amounts of nutrients the concentration and the activity of bacteria would increase. The other approach was to provide fresh environment to bacteria for the growth. Before the experiments it was decided to first examine their activity with time. However, there was no literature information available on this subject. The effect of the solution pH, was also studied. 4 refs., 8 figs.

• Research Organization: Idaho Univ., Moscow, ID (USA). Dept. of Metallurgical and Mining Engineering
• Sponsoring Organization: DOE/FE
• DOE Contract Number: FG22-88PC88920
• OSTI ID: 6224444
• Report Number(s): DOE/PC/88920-T8; ON: DE91004341
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
59 BASIC BIOLOGICAL SCIENCES
FERMENTATION
BIOCHEMISTRY
PYRITE
LEACHING
COAL
CULTURE MEDIA
ELECTROCHEMISTRY
PH VALUE
PROGRESS REPORT
REDOX POTENTIAL
THIOBACILLUS FERROXIDANS
BACILLUS
BACTERIA
BIOCONVERSION
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMISTRY
DISSOLUTION
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
IRON COMPOUNDS
IRON SULFIDES
MATERIALS
MICROORGANISMS
MINERALS
SEPARATION PROCESSES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SULFUR-OXIDIZING BACTERIA
TRANSITION ELEMENT COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
550700 - Microbiology