Concurrent Technologies Corporation
Air Sparging with Soil Vapor Extraction
Contaminant Names and Concentrations in Ground Water (ppm):
Contaminant Names and Concentrations in the Vadose Zone (ppm):
PILOT OR BENCH SCALE TESTS
Six months long term SVE/IAS Pilot test
PVC schedule 40
6 in (3/4 in)
25 to 55 feet
(35 ft below water table)
0.04 in slot
(3/4 in SS pressure nozzle)
Number and Spacing:
Air Sparge Pumping Rate: 25 cfm at 17 psia
Test Vacuum and Duration:
Install a 2 in butterfly-valve to restrict flow out of vent well. Install a pressure gauge between the valve
and the well.
SVE System Blower: 2.5 HP EG&G Rotron DR505 CD58 regenerative, 160 cfm at 15 in water pressure.
Vacuum side has moisture separator and air filter.
Air sparge compressor regulated by an Allen Bradley controller pressure side contains gate valves, an air
dryer, pressure gauge, and pressure relief valve.
SVE will vent to a 1,000 lb vapor-phase carbon vessel. Discharge is reinjected into vadose zone.