Figure 5

Comparison of COD and NH4+–N removal efficiencies in 2D and 3D electrochemical oxidation system. (interelectrode distance of 1 cm, current density of 20 mA·cm−2, initial pH value of 4.4, steel slags concentration of 0.30 g·mL−1).
Comparison of COD and NH4+–N removal efficiencies in 2D and 3D electrochemical oxidation system. (interelectrode distance of 1 cm, current density of 20 mA·cm−2, initial pH value of 4.4, steel slags concentration of 0.30 g·mL−1).