Counter Current Scrubber

The operating principle behind the counter current scrubber is the absorption of waste contaminants contained in a gas phase (process exhaust) and transferring them to a liquid state.

In the counter current scrubber, liquid flows from the top of the scrubber through the packing material. The liquid will be pumped and re-cycled into the scrubber. The contaminated waste gas stream flows in the opposite direction to the liquid, hence the name counter current. 

For some water soluble contaminants the use of water is sufficient to act as the absorption medium. However, most materials must be separated by means of chemisorption. The proportion of chemical that needs to be injected will depend on the type of contaminants.

• Low pressure loss

• High efficiency

• Suitable for large through-put fluctuations

• Level control

• Optional measuring parameters to indicate and control the performance of the scrubber includes pH, redox potential, electrical conductivity, density, temperature

Examples of application:

• Absorption of gaseous contaminants, such as:

• Hydrogen chloride

• Hydrogen fluoride

• Ammonia

• Sulfur dioxide

• Amines

• Hydrogen sulfide

• Mercaptane

• Different models of counter current atea scrubbers available:

• Verticle Scrubber (type ECS)

• Point of Use Scrubber (type UG)