A vacuum evaporator heats liquid media to recover fresh water. That is done under vacuum what reduces the boiling temperature. During the boiling process, the media will be divided. If you evaporate e.g Zinc- Nickel, you will recieve a Zinc - Nickel concentrate and fresh water with excellent features for the chemical industry, which can be reused in the process. You can recover up to 99% fresh water with a vacuum evaporator.