[9] In saturated zone remediation, air sparging refers to the injection of a hydrocarbon-free gaseous medium into the ground where contamination has been found.
[9] When it comes to situ air sparging it became an intricate phase process that was proven to be successful in Europe since the 1980s.
Contamination must be at least 3 feet (0.91 m) deep beneath the ground surface in order for the system to be effective.
The pressurized air forms small bubbles that travel through the contamination in and above water column.
Air sparging is usually applied to the lighter gasoline constituents such as benzene, ethylbenzene, toluene, and xylene.
This method is typically not applied on the heavier gasoline products such as kerosene and diesel fuels.