• Waste

Our approach to waste management is to reduce waste generation wherever possible. When waste is generated, we attempt to reuse the waste or make it practical for others to reuse. A regional committee made up of representatives from each Alcoa smelter in Québec identifies and shares solutions to decrease landfilling.


Various residues are generated by a smelter, with the most significant quantities consisting of spent pot linings and foundry dross.


In 2009, Alcoa Inc. set a target to reduce landfilling by 75% before the end of 2020 from baseline year 2005, excluding spent potlining.

Spent potlining

Casthouse dross