Waste gases generated from industrial processes or recycling’s plants, could sometimes contain a multitude of unpleasant odoriferous components. The cleaning process of such gases should be selected and designed according to the reactivity of these substances. In most cases of application a three stage purge has proved to be effective by using the acid-oxidative-alkaline principle. The alkaline-reacting substances, like amines and ammonia, are dislocated by stage one. Stage two then realizes an oxidative splitting of the less water-soluble substances. Finally, the oxidation products, together with the excess oxidation medium, are retained by the third alkaline stage. The waste gas is without odors when discharged from the system.

1. Acid stage
2. Oxidation stage
3. Alkaline stage
4. Pump
5. Fan
6. Stack
A) Crude gas
B) Clean gas
C) Water