Scrubber

THOLANDER ABLUFTTECHNIK GMBH

In the air treatment, it is usually matter of components harmful to environment and health, which should meet very low clean gas values. One particularly cost-efficient solution for this task is the counter-current scrubber.

The principle of the counter-current scrubber is wet separation of contaminants from the gas phase into the liquid phase. The waste gas and its malodorous particles arise through a packed bed from the bottom to the top of the scrubber while washing liquid flows from the top downwards. Thus, the gas to be cleaned flows in counter-current of the washing liquid.

Through this contact between waste gas and washing liquid, the contaminants and solid particles are separated by physical or chemical absorption, oxidation or condensation. The contaminants accumulate in the liquid phase and can be eliminated after a while. When high concentrated contaminants are present in the waste gas, chemicals such as oxidants, acid or caustic are added to the washing liquid to increase the separation.