Bismarck - North Dakota long ago phased out the practice of storing saltwater from oil production in evaporation ponds, but the environmental effects still linger today and likely will for decades ...

But any proposed jump to desalination - which uses significant amounts of energy to turn salt water into fresh - will ... The two main methods employ evaporation and micro filters.

Evaporation processing facilities for salt ... Artificial heat: In artificial heat processing, brine or other kinds of salt water is placed in a vacuum vessel that has enough pressure to boil ...