mechanical scrubbers

The mechanical scrubbers are able , by means of a water-atomization into the air flow, to degrading the polluting substances as well as humidifying the air flow.

Depending on the flow directions of water and air, we differentiate them into current-scrubbers and counter-current scrubbers.

chemical scrubbers

One-Stage Scrubbers

One-stage scrubbers are used, for example, to wash out high ammonia concentrations from waste air thus reducing biofilter depuration burden.

Two-Stage Scrubbers

Two-stage scrubbers are used, for example, to wash out hydrogen sulphide from waste air. After the chemical washing, waste air is then neutralized.

Three-Stage Scrubbers

Three-stage scrubbers are able to wash out acid as well as alkalised substances contained in waste air.

Substances which cannot be washed out chemically can be degraded by a biofilter installed after the scrubber.


Inside bio-scrubbers water-soluble substances are degraded and metabolised. Bacteria used to this aim live in a wash suspension and on the filling packing of scrubber.

By dosing nutrients and stabilising pH-value we create the ideal environment for bacteria. Washing water from bio-scrubber can be successively biologically degraded inside the fixed-bed reactor. Bio-scrubber contributes to saturation of the waste-air-flow and is, at the same time, a pre-treatment of waste air before this enters into the biofilter.