General term for the technology of introducing gases, usually air, beneath the water table to promote site remediation. Air sparging can be divided into two distinct processes: in-well aeration and air injection.
Injecting air or oxygen into groundwater to strip or flush volatile contaminants up through the groundwater as air bubbles and capture them with a vapor extraction system.
remediation technique â€“ typically used to strip volatile contaminants from ground water by injecting air below the water table. Often combined with soil vapor extraction. Some engineers sparge to increase dissolved oxygen in the groundwater and soil to enhance biodegradation. (See bioventing)