Diagram - 11 m3/day (2.1 gpm) of Wastewater from concrete chemical production is sent to a PRAB EVALED® Vacuum Evaporator model RV F 10, which creates 8.6 m3/day (1.6 gpm) of distillate and 2.8 m3/day (0.5 gpm) of concentrate. The disillate is resued for truck washing and the concenrate is sent to a PRAB EVALED® Vacuum Evaporator model RV PC R2, which creates 1.9 m3/day (0.4 gpm) of distillate and 0.9 m3/day (0.2 gpm) of concenrate. The distillate is resued for truck washing and the concentrate is sent to disposal.