Lucy project

Mine tailings storage
Lucy project
Context & Issues

The VALE NC nickel mine generates 5.4 million tonnes of wet tailings per year. The current storage basin, located behind a dam, does not have the capacity to store tailings beyond 2021. 

The Lucy project consists in creating a tailings dewatering plant and the associated infrastructure to store the dry tailings behind the existing dam (KO2) and in creating spoil mounds at a new site yet to be developed (KO4).