Diagram - Pharmaceutical lab discharges 4 ton/ day (.7 gpm). The LBP solvent, which is wastewater with solvents greater than 1000 parts per million, is incinerated. The HBP solvent is sent to a PRAB EVALED Vacuum Evaporator model PC F4. The Vacuum Evaporator produces 3.4 ton/day of distillate as active carbon and 0.2 ton/day of concentrate. This concentrate is incinerated.