Simulation of unenhanced electrokinetic process for lead removal from kaolinite clay

This paper presents a numerical model based on explicit finite difference method for contaminants transport under electrokinetic remediation process. the effect of adsorption,precipitation and water auto-ionization reactions was considered with a set of algebraic equations. also the effect of electrolysis reaction in anode and cathode cells was considered with appropriate boundary conditions. the model predictions are compared with experimental results of electrokinetic lead removal from kaolinite in the literature. the coefficient of determination and index of agreement between the lead concentration of experimental result and model prediction were 0.974 and 0.884,respectively. the coefficient of determination and index of agreement between the ph value of experiment and the ph prediction were 0.975 and 0.976,respectively. © iran university of science and technology 2016.