The above method, distillation desalination is one of the oldest, most commonly used method, the industrial waste water distillation desalination technology development based on the basic from seawater desalination technology. Distillation is the salty water heated to steam and steam condensate into the process of fresh water. Distillation has a lot of kinds, such as multiple effect evaporation, multi-stage flash, compressed air distillation, membrane distillation, etc.
Distillation is the main drawback is that: the high cost of operation, when the water is big, long-term operating cost will make the enterprise can't afford.