Gaseous Pollutants

Control of gaseous pollutants from stationary sources

The most common method for controlling gaseous pollutants is the addition of add-on control devices to recover or destroy a pollutant. There are four commonly used control technologies for gaseous pollutants: absorption, adsorption, condensation, and incineration (combustion). The choice of control technology depends on the pollutant(s) that must be removed, the removal efficiency required, pollutant gas stream characteristics, and specific characteristics of the site. Absorption, adsorption, and condensation all are recovery techniques while incineration involves the destruction of the pollutant.