Physical Remediation
Air Sparging System
Description
Air sparging is a in situ treatment technology that uses injected air to remove volatile or biodegradable contaminants from the saturated zone.
The application of air sparging entails the injection of air directly into the saturated subsurface to remove volatile contaminants (solvents and gasoline) from the dissolved phase to the vapor phase through air stripping.
The stripped compounds are then biodegraded and/or removed via soil vapor extraction (SVE) in the vadose zone.
The removal mechanism is stimulated microbial activity caused by the introduction of dissolved oxygen, which increases the biodegradation rate of the contaminant in the saturated zone.
