(JP8511990-W)      A contaminated heterogeneous soil region is treated by the introduction of material for treating the contaminants. A direct electric current is transmitted through at least one low permeability region between two electrodes having opposite charges. The electrodes may be located at opposite ends of the contaminated heterogeneous soil region, or at opposite ends of the low permeability regions. The current causes an electroosmotic flow between the electrode, and/or electromigratory movement of ionic contaminants.    A hydraulic gradient is applied across the contaminated heterogeneous soil region to cause a hydraulic flow from the high pressure to the low pressure ends of the region.    USE -   For the in-situ remediation of soils contaminated with toxic organic cpds., and/or toxic ionic contaminants, e.g., metals and radionuclides.    ADVANTAGE -   The treatment is commercially and economically practical even where the site is heterogeneous. It does not suffer from the normal problems associated with electrokinetics, hydraulic flow and biological or physiochemical degradation.    (EP706427-B1)      A contaminated heterogeneous soil region is treated by the introduction of material for treating the contaminants. A direct electric current is transmitted through at least one low permeability region between two electrodes having opposite charges. The electrodes may be located at opposite ends of the contaminated heterogeneous soil region, or at opposite ends of the low permeability regions. The current causes an electroosmotic flow between the electrode, and/or electromigratory movement of ionic contaminants.    A hydraulic gradient is applied across the contaminated heterogeneous soil region to cause a hydraulic flow from the high pressure to the low pressure ends of the region.    USE -   For the in-situ remediation of soils contaminated with toxic organic cpds., and/or toxic ionic contaminants, e.g., metals and radionuclides.    ADVANTAGE -   The treatment is commercially and economically practical even where the site is heterogeneous. It does not suffer from the normal problems associated with electrokinetics, hydraulic flow and biological or physiochemical degradation.    (RU2143954-C1)      A contaminated heterogeneous soil region is treated by the introduction of material for treating the contaminants. A direct electric current is transmitted through at least one low permeability region between two electrodes having opposite charges. The electrodes may be located at opposite ends of the contaminated heterogeneous soil region, or at opposite ends of the low permeability regions. The current causes an electroosmotic flow between the electrode, and/or electromigratory movement of ionic contaminants.    A hydraulic gradient is applied across the contaminated heterogeneous soil region to cause a hydraulic flow from the high pressure to the low pressure ends of the region.    USE -   For the in-situ remediation of soils contaminated with toxic organic cpds., and/or toxic ionic contaminants, e.g., metals and radionuclides.    ADVANTAGE -   The treatment is commercially and economically practical even where the site is heterogeneous. It does not suffer from the normal problems associated with electrokinetics, hydraulic flow and biological or physiochemical degradation.