Abstract

The rising world population and the increase in the number of potentially polluting activities have caused an upward trend in the number of soil-contaminated sites. To ensure that these sites do not pose an unacceptable risk to human health or the environment, a decontamination process must be carried out. Among all the technological alternatives available, electrokinetic remediation is one of the most promising options in soils with low permeability (mainly clay soils). However, for its implementation in real conditions, it is necessary an intense characterization of the properties of electrokinetic flow in the natural soils to be decontaminated.

This project proposes the definition of a methodology for estimating liquid phase flow parameters in these soils. To accomplish this, we propose the design of a simple experimental device that allows electrokinetic remediation tests to be carried out under controlled conditions on real samples of natural soils. The data obtained in the tests may be used to solve inverse problems that will allow the estimation of multiple parameters without the need to use more expensive and complex experimental techniques. To this end, it is proposed to apply the methodology to a soil that has been extensively studied in the literature, kaolin, in order to evaluate the plausibility of the parameter estimates made and the feasibility of the methodological proposal itself.