Signal optimization for electrokinetic metal decontamination: sample and fiels scale model experiments

As well known, the decontamination of polluted soils by heavy metals is an environmental problem that concerns wide areas of the planet. The electrokinetic decontamination (Acar Y.B. et al., 1993; Acar Y.B. et al., 1995; Alshawabken A.N. et al., 1999) is a recent "in situ" method, but in the current technology it requests high levels of power (some MW), with consequent security and cost problems. So the main purpose of our research has been to find an experimental procedure that requests low voltage levels to obtain the metal mobilisation.