Patent ID: 6457905
Filing Date: 2002-10-01
Classification: B09C,Y10S

Abstract:
A deep remediation injection system for in-situ remediation of contaminated soil and ground water capable of progressive penetration both vertically and horizontally in contaminated soil comprisinga soil penetrating lance for injecting at least two different highly-pressurized fluids taken from the group of air, gaseous oxygen, ozone, oxygenated liquid, hydrogen peroxide, surfactant-containing liquid, or catalyst-containing liquid and suspended biologicals-containing liquids, into said contaminated soil as said soil penetrating lance is inserted for penetration therein, said soil penetrating lance having at least an upper set of injection ports, said upper set of injection ports being generally radially spaced-apart on said lance, and at least one lower set of injection ports, said lance having an average width in the vicinity of said upper set of injection ports, said lance including substantially fluidically-independent first and second conduits leading, respectively, to said lower set of injection ports and said upper set of injection ports so as to permit delivery of separate pressurized fluid streams to said upper and lower sets of injection ports and then into said soil, said upper and lower sets of injection ports being spaced apart from each other on said lance a distance no farther than about three times the average width of said lance in the vicinity of said upper set of injection ports.