creator Bridges, Jack E. creator Sresty, Guggilam C. creator Dev, Harsh creator Jambor, Richard Ionic contact is established and maintained between electrodes and soil in ohmic heating of a subsurface formation for recovery of volatile and semi-volatile materials, such as hazardous waste, hydrocarbon-like materials, and valuable minerals having thermally responsive properties. A compressed, dry sponge is wrapped around an electrode, which is then inserted into a bore hole. A conductive liquid is added to the bore hole, causing the sponge to swell, creating a stable and substantial interface for the flow of heating currents. Submitted by Aric Ahrens (ahrens@iit.edu) on 2011-12-07T18:14:04Z No. of bitstreams: 1 5586213.pdf: 537640 bytes, checksum: 17509cf692a24743d6ad4e2d2261b41b (MD5) Made available in DSpace on 2011-12-07T18:14:04Z (GMT). No. of bitstreams: 1 5586213.pdf: 537640 bytes, checksum: 17509cf692a24743d6ad4e2d2261b41b (MD5) Previous issue date: 1996-12-17 IIT Research Institute 2009-05-11 1996-12-17 5,586,213 http://hdl.handle.net/10560/2390 en United States Patent Patent reformatted digital application/pdf No Copyright - United States http://rightsstatements.org/page/NoC-US/1.0/ Open Access