ESG

Water

ENVIRONMENT

WATER CYCLE

Stage 1:

Copper sulphide concentrators draw water from local sources for use in the production process. At Bozshakol, water is drawn from the nearby Satpayev canal and reservoir system.

Stage 2:

Water is mixed with crushed ore and reagents in the concentrator during the grinding and flotation processes.

Stage 3:

Slurry and waste water from flotation are transferred to the tailings thickeners.

Stage 4:

Water is also recycled from copper concentrate in the dewatering phase.

Stage 5:

The tailings thickeners reduce water content to 40%. Recycled process water is transferred back into the concentrator.

Stage 6:

40% is the minimum moisture content for maintaining a pumpable viscosity.

Stage 7:

The tailings are then transferred to the tailings storage facility.

Stage 8:

Water is reclaimed from the tailings storage facility for use in the concentrator.

Stage 9:

The Bozshakol and Akotogay concentrators are designed to recycle 75% of water withdrawn from local sources, with the only significant losses being evaporation from the tailings storage facility.