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But desalination is expensive. A thousand gallons of freshwater from a desalination plant costs the average US consumer $2.50 to $5, Pankratz says, compared to $2 for conventional freshwater.ut desalination is expensive. A thousand gallons of freshwater from a desalination plant costs the average US consumer $2.50 to $5, Pankratz says, compared to $2 for conventional freshwater.
Desalination is a process of removing salt usually involving waters from the sea. But this process can also be done using brackish water and/or waste water for the purpose of producing water suitable for consumption by human beings. Much of the water available in this planet comes from the oceans.