Wet scrubber is used to remove dust particles, SO2, HCl, H2S, odors, volatile organic compounds (VOC), submicron dust particles, fumes, organic matter and toxic gases such as NOx.
Types of Wet Scrubbers:
Flooded Disc Scrubbers
Venturi Scrubbers
Packed Tower
Turbulence Contact Absorber
Advantages:
Venturi disc type injection means no clogging
Low pressure injection
Designed to be unaffected by variations in gas flow
Circulation of high concentration solution to minimize emission>

Cyclone uses centrifugal force to separate particles from flue gas. A vortex is formed as flue gas enters the cyclone and particles slide down the inner walls of the cylinder and cone. The particles are collected in the hopper and the treated gas is discharged. Parallel and series arrangements are available depending on the amount of gas treated and collection efficiency.

Advantages
Suitable for treating gas containing high concentration of particulate matter

Suitable for treatment at high temperature
Ideal for treating particles that are prone to wear
Low initial investment and maintenance cost
Applications:
Power Plant- Oil & Coal Fired Boiler
Cement Industry- Kilns for pre-collector
Steel Industry- Sinter process, Coke process
Waste Wood Fired Boiler