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Home >> Gas Scrubbing >> What is it?

Gas Scrubbing - What is it?   


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 Scrubbers").

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 page.



Examples of different "Gas Scrubbing" systems that we have installed


A Dynawave™ scrubber removing SO2 from the steel making process


An Activated Carbon system removing H2S and odours from a sewage vent

Activated Carbon

A DeNOx system using a catylst bed on a specialist materials plant.



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