Patent ID: 6596142
Filing Date: 2003-07-22
Classification: B09C

Abstract:
An electrode well for penetrating from ground surface into contaminated soil and enabling simultaneous introduction of multi-phase alternating current into the soil, injection of water into the soil and circulation of water into the soil and back through the well to ground surface, comprising:a tubular conductive electrode having a side wall, forming intervals of apertures at the top, middle and bottom of the electrode, and an internal longitudinal bore comprising top, middle and bottom portions; a first pump and conduit means extending into the top portion of the bore, for supplying water under pressure to the top apertures; a second pump and conduit means extending into the lower portion of the bore, for supplying water under pressure to the bottom apertures; third conduit means, extending into the middle portion of the bore, for returning water entering through the middle apertures to ground surface; means for sealing the bore top portion from the middle portion; means for sealing the bore middle portion from the bottom portion; and means for delivering multi-phase alternating electric current to the electrode.