Sparging is a form of air stripping.
is the process where we bubble air into the groundwater through
perforated pipes (wells) that penetrate the aquifers. We install pipes
down into the saturated zone and perforate sections of the pipes under the water.
we pump air into the aquifer through the perforations. The air bubbles
move up, strip the dissolved gasoline and get it evaporated into the
air. The bubbles rise to the unsaturated zone where they get
sucked into another series of perforated pipes connected to a vacuum
machine. The vacuum machine sucks the air from the pipes and pumps it
into a system that combusts the gasoline vapors or collects them in
Air sparging woks also for chlorinated solvents, except that the treatment unit is replaced with activated-carbon filters.