Electrokinetic remediation is recognized one of the effective technology to remediate contaminated soils and groundwater. A lot of field applications have been implemented in the world. Before conducting it in the actual field, numerical simulations are indispensable to optimize running conditions. The purpose of our research is to investigate imperative processes that have to be incorporated into numerical simulation. Three kinds of numerical models were compared in terms of reproductively electrochemical phenomenon. The results showed that most adequate model was the ion migration code with chemical equilibrium for ion exchange reaction and surface complexation. Simplification of the model may lead incorrect estimate for the effect of the electrokinetic remediation.
