초록

A method of vitrifying soil at or below a soil surface location. Two or more conductive electrodes are inserted into the soil for heating of the soil mass between them to a temperature above its melting temperature. Materials in the soil, such as buried waste, can thereby be effectively immobilized.

대표청구항 ▼

A method for in-situ vitrification of soil, comprising the following steps: inserting at least one pair of electrodes into the soil at spaced positions from one another; providing an initial electrically conductive resistance path in the soil across the electrodes; passing electrical current through

A method for in-situ vitrification of soil, comprising the following steps: inserting at least one pair of electrodes into the soil at spaced positions from one another; providing an initial electrically conductive resistance path in the soil across the electrodes; passing electrical current through the electrically conductive resistance path by application of current to the electrodes to heat the soil about the path to its melting temperature, thereby establishing a current-carrying pathway through the molten soil between the electrodes; continuing application of current to the electrodes until the soil between them and immediately adjacent to them has been melted; and terminating application of current to the electrodes to permit cooling and solidification of the melted soil into a solid mass.