Patent ID: 6951436
Filing Date: 2005-10-04
Classification: B09C

Abstract:
1. A method of remediating contaminated soil, comprising: providing heat from a plurality of heater wells to at least one portion of a treatment area, wherein the plurality of heater wells comprises one or more first rings of heater wells, at least one first ring surrounding one or more vapor extraction wells, and one or more second rings of heater wells, at least one second ring surrounding one of the first rings of heater wells, and wherein the treatment area comprises contaminated soil; wherein providing heat comprises activating at least one of the first rings of heater wells before activating at least one of the second rings of heater wells; allowing the heat to transfer from the plurality of heater wells to at least a portion of the treatment area, wherein the heat vaporizes at least some compounds in the treatment area; removing vapors from the treatment area with at least one of the vapor extraction wells; and controlling a pressure of vapors in at least a portion of the treatment area by controlling heat provided from one or more of the heater wells.