Patent ID: 6203682
Filing Date: 2001-03-20
Classification: B01D,B09C,E02D,E21B

Abstract:
An apparatus for electrokinetic transport through soil, comprising:(a) an electrode;(b) a containment surrounding the electrode, the containment comprising a layer of a first porous material having an electroosmotic permeability coefficient greater than about 10.sup.-6 and a hydraulic permeability coefficient less than about 10.sup.-3 and a rigid porous member disposed between the electrode and the first porous material to secure the first porous material, wherein the first porous material and the rigid porous member allow passage of water, hydrogen ions, hydroxyl ions and one or more target ions; and(c) a voltage probe positioned inside the rigid porous member and a voltage probe positioned outside the first porous material to measure the voltage drop across the containment.