Pollution Control
Mines
- Periphery barrier of 15m width having green cover around mines
- Garland drains and drainage control within the mines
- Dust suppression at source and sprinkling of water
- Total overburden excavated with top soil used for reclamation and rehabilitation of mined out areas with vegetation cover.
Alumina Refinery
- Highly efficient ESPs at Calciners and steam Generation Plant
- Multistage washing of red mud and its storage in specially designed pond
- Use of dust collectors at handling and transport areas of bauxite, coal, lime and alumina
- Recycling of waste water
Smelter
- Hooding of pots and adsorption of fluorine gas by dry scrubbing with alumina in Fume Treatment Plant
- Defluoridation to reduce fluorine level of contaminated surface water
- Specially designed preservation system for spent potlines
Captive Power Plant
- Electro-static precipitators with advanced intelligent controllers and effective stack emission control
- Efficient burner management to reduce emission of carbon monoxide
- Ash pond with zero discharge and recycling of waste water