Steel plant processes and their significant pollutant types
Process | Significant Pollutant Types |
Integrated Steel Plants | |
Sintering | Carbon dioxide, carbon monoxide, particulate matter, volatile organic compounds, nitrogen oxides, dioxins and furans |
Cokemaking | Carbon dioxide, volatile organic compounds, nitrogen oxides, sulphur oxides, carbon monoxide, particulate matter, benzene, and PAHs |
Ironmaking (Blast Furnace) | Carbon dioxide, carbon monoxide, sulphur oxides, volatile organic compounds, nitrogen oxides, and particulate matter. |
Steelmaking (Basic Oxygen Furnace) | Carbon dioxide, carbon monoxide, particulate matter, and nitrogen oxides. |
Boilers | Carbon dioxide, carbon monoxide, particulate matter, and nitrogen oxides. |
Non-Integrated Steel Plants | |
Steelmaking (Electric Arc Furnace) | Carbon dioxide, carbon monoxide, nitrogen oxides, particulate matter, dioxins and furans. |
All Steel Plants | |
Hot Rolling | Carbon dioxide, carbon monoxide, nitrogen oxides, particulate matter, and volatile organic compounds. |
Cold Rolling | Volatile organic compounds. |
Finishing | Carbon dioxide and nitrogen oxides. |