Air sparging, also known as in situ air stripping and in situ volatilization is an in situ remediation technique, used for the treatment of saturated soils and groundwater contaminated by volatile organic compounds (VOCs) like petroleum hydrocarbons which is a widespread problem for the ground water and soil health.
The subsurface contaminant remediation technique involves the injection of pressurized air into contaminated ground water enabling the hydrocarbons to change its state from dissolved to vapor state. The air is then sent to the vacuum extraction systems to remove the contaminants.