With the MaxEvap® system, solution is pumped from the process tank to the MaxEvap® unit, sprayed over a randomly oriented, high effective surface area packing material and returned by gravity to the tank. At the same time, air is blown through the wetted packing material. Evaporation of the process solution is, as a result, enhanced considerably. The headroom thus created in the process tank is made up from the downstream rinses, thereby returning dragged-out chemicals to the process tank.
Any processing solution in an open tank will lose water through natural
evaporation. The rate depends on a number of factors, including:
In general, evaporation decreases with an increase in atmospheric humidity and increases with an increase in solution temperature, air temperature, surface area of solution exposed to air and air movement across the solution surface.
