Device for producing and treating a gas stream through an automatically controlled volume of liquid

A device for producing and treating a gas stream (F), which device comprises an exchange enclosure (2) having at least one first opening (2b) for discharging a gas stream, means (3;

• 4) for supplying the enclosure with a liquid (L) such that the exchange enclosure (2) can contain a volume (V) of this liquid with said first discharge opening (2b) of the exchange enclosure being positioned above the surface (S) of the volume of liquid (V) contained in the exchange enclosure, means (3;
• 5) for discharging the liquid (L) contained in the exchange enclosure (2) and aeraulic means (6), which are capable, during operation, of creating, by suction or blowing, an incoming gas stream (F) coming from the outside of the exchange enclosure (2), such that this incoming gas stream (F) is introduced into the volume of liquid (V) contained in the exchange enclosure (2), below the surface (S) of said volume of liquid, and such that an outgoing gas stream (F′) treated by direct contact with said volume of liquid rises up inside the exchange enclosure and is discharged out of said exchange enclosure (2) by passing through the discharge opening (2b) of the exchange enclosure (2), characterized in that said device further comprises first means (7) for measuring a first operating parameter (Xout) measured in the outgoing gas stream (F′) or first means (7′) for measuring a first operating parameter (Xout) measuring the concentration (CLout) of a compound in the liquid contained in the exchange enclosure (2) or coming from the exchange enclosure (2), or measuring the pH (pHout) of the liquid contained in the exchange enclosure (2) or coming from the exchange enclosure (2), and in that said device comprises electronic control means (9) for automatically controlling the supply means (3;
• 4) of the exchange enclosure and the discharge means (3;
• 5) of the exchange enclosure so as to automatically adjust the height (h) of liquid in the exchange enclosure depending on at least this first operating parameter (Xout).