Patent ID: 6305878
Filing Date: 2001-10-23
Classification: B09C

Abstract:
An adjustable depth air sparging system for removing contaminants from a saturated zone comprising:a vertically oriented well casing extending downward into said saturated zone, said well casing having a screened lower portion positioned within said saturated zone;an air supply tube movably disposed within said well casing, said air supply tube having a plurality of openings positioned at a lower end thereof;air supply means for providing compressed air to said air supply tube;a flow through air sparge packer affixed to the lower end of said air supply tube, said flow through air sparge packer covering the openings within said air supply tube forming an air tight seal around the lower portion of said air supply tube; andinjecting means affixed to the lower end of air supply tube to receive said compressed air, said injecting means injecting said pressurized air through the screened lower portion of said well casing into said saturated zone at a plurality of depths, forming air channels at each of said plurality of depths through which said pressurized air flows to remove said containments from said saturated zone.