Types of Wet Scrubbers

There are a great variety of wet scrubbers that are either commercially available or can be
custom designed. While all wet scrubbers are similar to some extent, there are several distinct methods of using the scrubbing liquid to achieve particle collection. Wet scrubbers are usually classified according to the method that is used to contact the gas and the liquid.

The most common scrubber design is the introduction of liquid droplets into a spray chamber,
where the liquid is mixed with the gas stream to promote contact with the PM. In a packed-bed
scrubber, layers of liquid are used to coat various shapes of packing material that become impaction
surfaces for the particle-laden gas. Scrubber collection can also be achieved by forcing the gas at high
velocities though a liquid to form jet streams. Liquids are also used to supersaturate the gas stream,
leading to particle scrubbing by condensation.

1.Spray Chambers
2.Packed-Bed Scrubber
3.Impingement Plate Scrubbers
4.Mechanically- Aided Scrubbers
5.Venturi Scrubbers
6.Orifice Scrubbers
7.Condensation Scrubbers
8.Charged Scrubbers
9.Fiber Bed Scrubbers