Five laboratory experiments to analyze the removal of manganese from a contaminated sludge by electromigration were carried out. The experiments differed in the arrangement of the remediation cells and the remedial conditions (current intensity or voltage drop constant, use of ion-exchange membranes, neutralization of basic environment at the cathode, and stirring in the electrode solutions). This was done in a way to compare the advantages of and differences between electrokinetic and electrodialytic remediation. Electrokinetic treatment was appropriate to remove 68% of the Mn from this polluted Sludge when pH control was used in the cathode solution and a potential difference of 30 V was applied during 8 days.