Industrial wet air scrubbers provide air pollution control

Wet air scrubbers are considered to be an air treatment technology that enables to remove particulate pollutants from gaseous streams, therefore, performing air pollution control. Wet scrubbers help fight dust, volatile organic compound, and volatile inorganic compounds. 

The working principle of wet air scrubbers reminds showers because they wash and absorb the particulate pollutants by recirculating liquid. Every scrubbing system has a special tank (usually at the bottom of wet scrubber) with the solution applied for the air treatment process. It should be noted that the scrubbing solution is characterized by a specific pH that defines its acidity or basicity.

Moreover, it is necessary to choose a pH level suitable for the liquid solution employed inside wet air scrubbers in order to reduce air pollution. For example, an acid reagent is used to decrease the basic volatile inorganic compound, while a basic reagent reduces the acid volatile inorganic compounds.

Also, the solution contained in the scrubber tank is connected to the reagent tank to provide air treatment efficiency. Therefore, a special pump directs the reagent directly inside the tank in order to compensate for the pH levels. The polluted air due to the production process is taken in a pipe, goes through the fan, and then is treated inside the scrubbing systems.

The new scrubbing technology includes two scrubbers with a two-stage air treatment system where the air flows into the first wet air scrubber, where the reduction of basic compounds such as ammonia happens, then it enters in the second scrubber that enables to take away the acid compound (for example, hydrogen sulfide).

Herewith, both scrubbing systems have tanks linked to reagent tanks where the acid or basic reagents used to stabilize the pH are kept. Also, it is possible to equip the plant by wet air scrubber systems with oxidant reagent in order to decrease the bacterial load before the emission.

When a manufacturer chooses a scrubber, they should pay special attention to the following features that regulate the particulate pollutants capturing process: particle size, droplets size, and the relative velocity between the particles and the droplets. The thing is that the larger particles are, the easier them to capture, herein, the reduction of droplets size leads to the increase of wet scrubber capture efficiency, while higher speed results in higher removal efficiency of wet air scrubbers.

Finally, the classification of wet scrubber types depends on the phase to which energy is supplied. To be more precise, it is possible to supply energy to the gaseous phase (venturi scrubbers), the liquid phase (spray towers), and both liquid and gaseous phases (packed bed scrubbers or floating scrubbers).

If you search for the best air treatment device to improve air quality, you can buy a high-tech completely new type of wet scrubber – a Multi-Vortex wet air scrubber produced by Redwood Technology.

Redwood technology is a fast-growing vendor of wet air scrubbers. The multi-vortex scrubber can remove gas emissions, dust, vapors, and other pollutants from a gas stream. It is an innovative technology created to save water that makes it more cost-efficient and differs from other types of scrubbers.  If you have any questions or would like to purchase a multi-vortex wet air scrubber, please contact us at

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