13. Electro-oxidation

Another keyword: geo-oxidation

Electro-oxidation is the application of an electric field in the soil (water-unsaturated part), with the aim of oxidizing pollutants (figure 13 ). This recent technique has been pilot-tested on site and is now starting to be marketed.

• Principle

  Soil is made up of water, organic matter, clays, metals and natural salts. These compounds are often polar or charged. There are therefore electrical interactions at the various points where these elements come into contact. When an electric current is applied to the soil, redox reactions occur at the interfaces between water and charged or polar compounds. These reactions often result in the hydrolysis of water and the formation...