This research is focused on the removal of different pollutants, such as polycyclic aromatic hydrocarbons and pesticides from clayey soils by the use of EK�Fenton�like, which couples the Fenton�like treatment with the electrokinetic remediation. This combination induces the hydrogen peroxide to pass homogeneously through a low permeability soil from anode to cathode by electroosmosis, which is accompanied by the generation of hydroxyl radicals catalyzed by the presence of iron in soil. After 27 days of treatment, low removal rates were obtained and so it was decided to improve the assays by the use of different complexing agents, which enhanced the availability of iron. This fact allowed obtaining higher degradation levels (around 90%) without detecting secondary pollutants in the soil at the end of the treatments. Therefore, it can be concluded that total mineralization of pollutants was achieved with the EK�Fenton�like process enhanced by the use of complexing agents.

In situ soil remediation by electrokinetic�Fenton�like: Application to degradation of different emerging pollutants

248th National Meeting (2014)

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