Subject
Acid mine drainage
10
Coal
Mineral industry
10
Mining
10
Tailings
9
Reclamation
8
Environmental aspects
7
Sulfides
7
Beneficiation
6
Concrete
6
Industrial minerals
6
Integrated Resource management
6
Testing
6
Waste disposal
6
Coal Mines
5
Combustion
5
Methane
5
Ash
4
Clean coal
4
Coal mining
4
Emissions
4
Environmental impacts
4
Feasibility studies
4
Longwall mining
4
Mines
4
Sulfur
4
Analysis
Anhydrite deposits
3
Coal preparation
3
Electric power
3
Engineering geology
3
Fly ash
3
Mining geology
3
Packing
3
Rock mechanics
3
Technology
3
Aggregate
2
Aggregates
2
Cement materials
2
Clays
2
Coal deposits
2
Coal industry
2
Coal quality
2
Coal resources
2
Computer modeling
2
Construction materials
2
Desulferization
2
Energy
2
Environment
2
Geochemistry
2
more ...