A biologically treated effluent with residual dissolved COD of 5100 mg L1 was completely mineralized and decolorized at 187.5 mA cm2 applied current density; complete removal of COD, color and total phenolic compounds was achieved in 180e240 min, 30e60 min and 30 min of electrochemical oxidation, respectively.
effluent
current densities were needed to polish effluents with lower organic loads.
polish