Flue gas cleaning is determined by the waste to be removed and the local regulations!
In most cases "dry flue gas cleaning" is sufficient in accordance with the dry sorption principle.This system consists of a batching and injection process, the reactor, a hose filter and the relevant regulation and control devices.
Lime or bicarbonate and activated carbon is used for adsorption. These can either be mixed or the ready-made adsorbents Hovalit or Sorbalit, specially developed by us for various special applications, can be used.

A two or multi-stage wet washer is normally connected in serial mode for widely differing or unknown waste materials or if high levels of pollutants are present. Chlorine and hydrogen fluorides, in addition to heavy metals, are mainly washed out in the first stage with an acidic solution (pH 1-3), sulphur dioxide in the second stage with a basic solution (pH 7-8).
The pollutants present in form of dust, salts and heavy metals and washed out by the chemical reaction are fed to a corresponding sewage treatment process and eliminated in concentrated form.
The following drying system in serial mode acts as police filter and is used for re-combined dioxins and furans, as well as for slightly volatile heavy metals.