Argyle Diamond Mine, WA – Liberty Industrial has successfully achieved Practical Completion of Stage 1, a pivotal milestone in the closure of the Argyle Diamond Mine. The process was finalised in late 2023, three years into a five-year project to deliver the closure and rehabilitation of the Argyle Diamond Mine. The process included the removal of the Argyle Processing Plant, Pipeline and containment cell capping. The Argyle Diamond Mine Closure project is the first entire closure project for the region.
With strategic planning, full lifecycle approach and successful collaboration with Rio Tinto Closure Team, SP1 delivered a comprehensive closure scope that involved Early Contractor Involvement, technical infrastructure demolition, industry leading waste management, and collaborative land rehabilitation.
During this process, Liberty Industrial prepared ferrous material and non-ferrous material for recycling at Wyndam Port in WA. The ferrous material yielded recycling rates over 95%, in line with company standards and commitments. These impressive volumes are thanks to a sophisticated approach to the demolition strategy and treatment of the materials to deliver as much volume as possible back to the circular economy.
High-density polyethylene (HDPE) materials were recycled using a special approach, with the HDPE materials broken down and segregated into various waste classifications and melted and processed for reuse in purposes such as HDPE piping and fittings, sewerage, storm water and potable water products.