Mechanically aided scrubber

This type of technology is a part of the group of air pollution controls collectively referred to as wet scrubbers.

In addition to using liquid sprays or the exhaust stream, scrubbing systems can use motors to supply energy.

The motor drives a rotor or paddles which, in turn, generate water droplets for gas and particle collection.

Figure 1 shows such a system, where water is sprayed onto the fan blades concurrently with the moving exhaust gas.

Another mechanically aided scrubber, the induced-spray, consists of a whirling rotor submerged in a pool of liquid.

Mechanically aided scrubbers are capable of high collection efficiencies for particles with diameters of 1 μm or greater.

In mechanically aided scrubbers, the majority of particle collection occurs in the liquid droplets formed by the rotating blades or rotor.