Desalination plants in Chile31 Aug 2022 12:35
Most freshwater demand in the region is from the agricultural sector, but, in a bold move to address the country’s water scarcity, Chile has banned fresh water use in mining.
While the implications of the decision are uncertain, many desalination plants, mostly in the Atacama Desert, have now been initiated to turn the country’s limitless seawater supply into water suitable for the mining sector. In late 2019, desalinated seawater made up 20% of mining water use in Chile, the world’s largest copper-producing country. Twelve large-scale desalination plants are now treating water for the sector, with 15 more in the planning stage. Seawater use in Chilean mining is expected to triple between 2018 and 2029 with a mean annual growth rate of approximately 12%.
The technology in this area has developed substantially in the past 10 years. The plan therefore has to factor all this in. HoC has set up a separate company to look after the Volcan project.