Prevention of acid drainage from coal refuse
It has been demonstrated by the US Bureau of Mines, academia, and others that the abundance of acid drainage that flows from pyritic coal refuse, pyrite-bearing coal, and pyritic overburden is associated with the surface activity of this pyritic material and an iron-oxidizing bacterium, Thiobacillus ferrooxidans. More recently, it has been demonstrated that certain chemical compounds can affect this surface activity and the bacterium's ability to oxidize the pyrite. Treatment of the pyritic material with these chemical compounds will therefore reduce or eliminate its potential for acid drainage. Based on laboratory work and many field applications, an improved chemical treatment system has been developed. It has been shown that this chemical treatment system can effectively and economically reduce acid production from pyrite-bearing coal refuse.
- Research Organization:
- Witco Chemical Corp., Melrose Park, IL
- OSTI ID:
- 5288441
- Report Number(s):
- CONF-821175-
- Journal Information:
- Univ. Ky., Off. Eng. Serv., (Bull.); (United States), Conference: Symposium on surface mining hydrology, sedimentology, and reclamation, Lexington, KY, USA, 1 Nov 1982
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
ACID MINE DRAINAGE
INHIBITION
COAL MINING
MINERAL WASTES
ADDITIVES
LEACHING
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
FIELD TESTS
OXIDATION
PYRITE
THIOBACILLUS FERROXIDANS
US BUREAU OF MINES
WASTE PROCESSING
WATER POLLUTION
BACILLUS
BACTERIA
CHALCOGENIDES
DISSOLUTION
IRON COMPOUNDS
IRON SULFIDES
MANAGEMENT
MICROORGANISMS
MINERALS
MINING
NATIONAL ORGANIZATIONS
POLLUTION
PROCESSING
SEPARATION PROCESSES
SOLID WASTES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SULFUR-OXIDIZING BACTERIA
TESTING
TRANSITION ELEMENT COMPOUNDS
US DOI
US ORGANIZATIONS
WASTE MANAGEMENT
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
012000 - Coal
Lignite
& Peat- Mining