Step 1 A waste solution enters the evaporation loop near the base of the Separator tank.

Step 2 A high temperature, corrosion resistant centrifugal pump circulates the solution through a steam driven heat exchanger and into the separator vessel where evaporation occurs.

Step 3 As the water vapor separates from the circulating solution, the concentration of salts in solution increases. The water vapor travels through vent piping to a scrubber or exhaust. When the concentration of salts reaches a pre-determined level, a valve opens and discharges the concentrate (for example, FeSO₄, FeCl₂, ZnCl, CuCl₂).
 

last updated April, 2003