This environmental impact assessment report summarizes the operations and environmental impacts of National Aluminium Company Limited (NALCO), one of the largest integrated aluminum producers in Asia. NALCO operates bauxite mines, alumina refineries, aluminum smelters, power plants, and other facilities. The report evaluates NALCO's impacts on air emissions, water usage, biodiversity, effluents and waste generation. It also describes NALCO's initiatives to reduce its environmental footprint through conservation efforts, emissions control technologies, and recycling programs.

1. ENVIRONMENTAL
IMPACT ASSESSMENT
NATIONAL ALUMINIUM COMPANY LIMITED
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2. WHAT IS ALUMINIUM ?
• Aluminium originates from bauxite, an ore typically found in the topsoil of
various tropical and subtropical regions.
• The bauxite is purified using the Bayer process. This process involves
dissolving aluminium trihydrate to leave alumina plus iron and titanium
oxides.
• Aluminium is the world’s most abundant metal and is the third most
common element, comprising 8% of the earth’s crust. The versatility of
aluminium makes it the most widely used metal after steel.
• It can be easily shaped, rolled, drawn, extruded, welded and therefore it is
the ideal metal for construction.

3. PROPERTIES OF ALUMINIUM

4. PROPERTIES OF ALUMINIUM

5. NATIONAL ALUMINIUM
COMPANY LIMITED (NALCO)
• It is one of the largest integrated primary producer of aluminium
in Asia.
• National Aluminium Company Limited (NALCO) is a Navratna CPSE
under Ministry of Mines. It was established on 7th January, 1981,
with its registered office at Bhubaneswar, Odisha. The Company is
a group ‘A’ CPSE, having integrated and diversified operations in
mining, metal and power.
• NALCO is one of the largest integrated
Bauxite-Alumina-Aluminium- Power Complex in the Country.
• Globally, NALCO is the lowest cost producer of Bauxite and
Alumina in the world.
Operation
● Bauxite Mines
● Alumina Refinery
● Aluminium Smelter
● Captive Power Plant
● Rolled Products Unit
● Port Facilities
● Wind Power Plants
● Solar Power
● NRTC – Testing Services

6. ENVIRONMENTAL IMPACTS
MATERIALS EMISSIONSENERGY WATER
STEWARD
SHIP
BIODIVERSITY
EFFLUENT
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WASTE

7. RESPONSIBLE CONSUMPTION OF MATERIALS

8. MATERIALS USED BY WEIGHT AND VOLUME

9. RECYCLED INPUT MATERIALS

10. ENERGY

11. ENERGY CONSUMPTION

12. REDUCTION OF ENERGY CONSUMPTION
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13. ENERGY CONSERVATION INITIATIVES

14. WATER MANAGEMENT
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WATER CONSERVATION IN 2018-19

16. WATER WITHDRAWL BY SOURCE
CONSERVATION & RECYCLING OF WATER
MINES SURFACE WATER RESERVOIR

17. BIODIVERSITY
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18. AFFORESTATION ACTIVITIES & WILDLIFE
CONSERVATION

19. EMISSIONS

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EMISSIONS

21. EFFLUENT&WASTE
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22. EFFLUENT&WASTE

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EFFLUENT&WASTE

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EFFLUENT&WASTE

25. EFFLUENT&WASTE

26. SOURCES
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