Environmental pollution is considered a serious problem in Europe. It has been regulated by several directives with the aim of limiting the amount of pollutants that can reach the environment. Five years ago, on the 1st of January 2007, Romania became one of the European Union members. In the following years Romania had to comply with the EU directives in all the areas, but especially in the field of the contaminated sites. Presently the Romanian regulations regarding the contaminated sites are not very developed and must be enhanced. In this paper, some results from a PhD research are presented. In the frame of a co-supervised doctorate, in 2007 an international scientific collaboration between the Politehnica University of Bucharest and the University of Trento, Italy, was signed in order to go on with the development of studies on remediation technologies for contaminated sites. The idea started from the need, especially, from the Romanian side, to identify alternative treatments for soils mainly polluted with petroleum products. The main objective of this paper is to present some results regarding the effect of electrochemical treatment applied on the contaminated soil. Three types of matrices and two types of contamination were tested.