Sierra Gorda SCM uses 100% seawater as a means of concentrating Copper/Molybdenum. The tailings generated from this process are transported and deposited gravitationally to the Tailings Deposit. The water contained in the tailings is subsequently recovered and reused in the Milling/Flotation process. The main components of the water recovery and transport system from the Tailings Deposit are Recovery ponds and pools/pumping stations. All this system is interconnected through a 12 kms long piping network (HDPE – 710 mm), reaching a design flow rate of 2,000 m3 /hr. Currently there is incrustation of gypsum salts in the pumping system and along the entire piping of the water transport system, causing a reduction in the available diameter and consequently a reduction in the flow rate.
Identify technological solutions oriented both to minimize or inhibit the incrustation of salts in the reclaimed water transport system, as well as to monitor online and in real time, thus facilitating the maintenance management of the water recirculation system. As an example, we are looking for solutions that can be classified in the following areas (without prejudice to other categories that may be proposed by the supplier):
The following will not be considered in the background evaluation process:
The proposed technological solution must consider the following requirements:
Minimize or inhibit salt incrustation in recovered water transportation system
On a daily basis (progressive over time).
Inspections and technical tests are carried out to monitor the condition and detect anomalies in the reclaimed water transport system.
No new technologies have been tested.
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