The process generally known as "Gas Scrubbing" is the removal
of a gaseous pollutant from a larger gas stream.
Traditionally, the term
"scrubber" has referred to pollution control devices that use liquid to
wash unwanted pollutants from a gas stream ("Wet Scrubbers").
In recent times this term has been expanded to also describe systems that inject a dry reagent or slurry into a dirty
exhaust stream to remove acid gases ("Dry or Semi-Dry
In a broader sense, the term "gas scrubbing" can be
expanded to include all devices that remove a gaseous
pollutant from a larger gas stream. These may include
activated carbon systems, thermal oxidisers, catalyst
systems and many more.
All gas scrubbing systems can be generally grouped into
three major technology categories:
You can read further on each topic by clicking on the above
topics or selecting them from the menu to the left of this