A blower introduces solvent laden fume to the thermal oxidizer. The stream is pre-heated by exiting flue gas from the same system in a heat exchanger, or recuperator. A burner than heats the air to the required temperature of >1200 ° F. The fume is then passed through an oxidation chamber where the solvent laden air converted to CO2 and H2O. The CO2 and H2O are then passed through the heat exchanger where incoming fume is preheated by the heat of the exiting flue gas. Finally, the clean flue gas is discharged into the atmosphere.