Deep coal mining: waste disposal technology
Book
·
OSTI ID:7336535
When coal containing iron pyrite is exposed to the atmosphere, the pyrite is oxidized by complex chemical processes, usually with aid from certain bacteria, to form soluble iron compounds and sulfuric acid. As a result of drainage of this acid mine water from active and abandoned coal mines and from mineral waste spoil banks, serious detrimental environmental and ecological results have occurred in many areas of the eastern USA. Methods of preventing the problem by sealing abandoned mines and refuse spoil banks are given. Also, methods are described for controlling this pollution, based on nineteen government reports and seven patents. The various processes for neutralization of acid mine drainage, disposal of the resultant sludges, the role of iron oxidation, and methods of oxidizing iron are described. Treatment of acid mine drainage with soil, by ion exchange and reverse osmosis is detailed. The possible combined treatment of acid mine drainage and municipal wastewater is evaluated. The underground disposal of mine wastes and control of drainage from refuse banks are also discussed. Reclamation of refuse banks by vegetation, as well as a method for extinguishing and removing burning refuse banks is described. (LTN)
- OSTI ID:
- 7336535
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
012000 -- Coal
Lignite
& Peat-- Mining
510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID MINE DRAINAGE
CHALCOGENIDES
CHEMICAL REACTIONS
COAL MINES
COAL MINING
ENVIRONMENTAL EFFECTS
ION EXCHANGE
IRON COMPOUNDS
IRON SULFIDES
MANAGEMENT
MINERAL WASTES
MINERALS
MINES
MINING
ORES
OSMOSIS
OXIDATION
PROCESSING
PYRITE
PYRITES
REVEGETATION
SEALS
SOLID WASTES
SPOIL BANKS
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES
TRANSITION ELEMENT COMPOUNDS
UNDERGROUND MINING
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
012000 -- Coal
Lignite
& Peat-- Mining
510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID MINE DRAINAGE
CHALCOGENIDES
CHEMICAL REACTIONS
COAL MINES
COAL MINING
ENVIRONMENTAL EFFECTS
ION EXCHANGE
IRON COMPOUNDS
IRON SULFIDES
MANAGEMENT
MINERAL WASTES
MINERALS
MINES
MINING
ORES
OSMOSIS
OXIDATION
PROCESSING
PYRITE
PYRITES
REVEGETATION
SEALS
SOLID WASTES
SPOIL BANKS
SULFIDES
SULFUR COMPOUNDS
SULFUR ORES
TRANSITION ELEMENT COMPOUNDS
UNDERGROUND MINING
WASTE MANAGEMENT
WASTE PROCESSING
WASTES