Arsenic Treatment; Morelos Gold Mine; Prefeasibility Phase

The technology used for arsenic removal at the Morelos Gold Mine (Minera Media Luna, Mexico) Pond 5 Conceptual Water Treatment Facility is co-precipitation with ferric sulphate.

The treatment process components included:

• a ferric sulphate storage tank;

• a ferric sulphate unloading station;

• a dosing pump station for ferric sulphate including pumps, valves and flow meters;

• a weir for measuring raw water flow rate

• a cascade system for providing in-line mixing; and,

• a pH probe for monitoring compliance prior to entering Pond 5.

Location: Cocula, GUERRERO, Mexico