As it can be seen in Table 2, the results indicated that both Al and Fe performed well – clearly more efficiently than stainless steel – as the anode material, taking into account the slight difference in current density (17% less with the stainless steel anode). The best electrode combinations were found to be Al/Fe and Fe/Al, of which the former was preferred due to the coloration of the water by both the Fe and stainless steel anodes. Thus, the Al/Fe electrode combination was chosen for subsequent testing.