Abstract: A gas stream scrubbing and/or filtration system using a pressurized working fluid includes a working chamber having an inlet and an outlet for the gas stream, and a first opening for entering the working fluid; a first feeding line of the working fluid having a spraying nozzle for spraying the working fluid inside the working chamber; and a mounting system of the nozzle on the working chamber at the first opening. In particular, the mounting system is configured to enable the nozzle to spray the working fluid inside the working chamber, passing through the first opening. The mounting system is further configured to provide access to the nozzle from outside of the working chamber, so as to allow an operator to easily perform maintenance, replacement and/or adjustments thereof.

Abstract: A gas stream scrubbing and/or filtration system using a pressurized working fluid includes a working chamber having an inlet and an outlet for the gas stream, and a first opening for entering the working fluid; a first feeding line of the working fluid having a spraying nozzle for spraying the working fluid inside the working chamber; and a mounting system of the nozzle on the working chamber at the first opening. In particular, the mounting system is configured to enable the nozzle to spray the working fluid inside the working chamber, passing through the first opening. The mounting system is further configured to provide access to the nozzle from outside of the working chamber, so as to allow an operator to easily perform maintenance, replacement and/or adjustments thereof.

Abstract: A system for the treatment of exhaust gases flowing in and/or flowing out from a tunnel (T) overlying a roadway (R) through a ventilation duct (TV). The system comprises: filtering means (20) to filter the exhaust gases passing through the ventilation duct (TV); fan means (V) to force the evacuation of exhaust gases from the tunnel (T) towards the outer environment or the inflow of the exhaust gases from the outer environment into the tunnel (T) through the ventilation duct (TV); detecting means (10) of at least one parameter of the exhaust gases; control means (30) to activate the filtering means (20) in response to the detection by the first (10) of the exceeding of a predetermined threshold value of the at least one parameter.

Abstract: A barrier device for withholding odors released by a malodorous substance, particularly for purifying plants; the barrier device is provided with a plurality of atomizing nozzles for generating a layer of atomized liquid for covering the free upper surface of the malodorous substance.