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Coating Reformulation Brings Environmental, Economic Benefits
Rather than take a low-risk, low-effort approach to reduce hazardous air pollutants (HAP), Alcoa’s Warrick Operations in Indiana chose to reformulate the coatings it uses to gain long-term environmental and economic benefits. The project took nine years to complete.
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Reengineering Project Improves Furnace Efficiency
By reengineering how aluminum ingots are preheated prior to hot rolling, Alcoa’s Warrick Operations in Indiana cut natural gas consumption by 25%, shaved off US$1.4 million in energy costs, and reduced greenhouse gases and other emissions by about 9,100 metric tons (10,000 tons) between 2000 and 2003—with zero capital dollars spent.
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Furnace Replacement Project Maximizes Recycled Material
At Alcoa's Warrick smelting operation in Indiana (USA), a carbon-dust recycling process is eliminating 1,633 metric tons (1,800 tons) of landfilled waste annually.
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Dust Recycling Process Eliminates Landfilled Waste
At Alcoa's Warrick smelting operation in Indiana (USA), a carbon-dust recycling process is eliminating 1,633 metric tons (1,800 tons) of landfilled waste annually.
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