What was developed or tested
Fresh tailings are diverted for treatment; historic material is hydraulically reclaimed, classified, ground and floated with water recovery integrated.
What the evidence supports
A major international benchmark operating since the 1990s. It demonstrates sustained recovery where residual grade, throughput and access to an existing stream align.
Environmental and technical uncertainty
Secondary recovery improves resource efficiency, while hydraulic reclamation and redeposition require water, stability and closure controls.
Benefit-case screening lens
Potential value: Recovered metal revenue, critical-mineral supply, improved resource efficiency and possible reduction of a legacy or active tailings inventory.
Deployment constraints: Representative grade, mineral deportment, recovery, throughput, reagents, energy, CAPEX, commodity price and management of the reprocessed residue.
Question before applying elsewhere
Do grade variability, mineral deportment, recovery, reagent demand and residual-waste management support a viable site-specific flowsheet?