Results from research designed to investigate the efficiency of electrocoagulation in removing COD, turbidity, and apparent color from healthcare waste (HCW), these graphs show the percent removal of these parameters as a function of electric current, electrode distance, and hydraulic retention time.One of the conclusions associated with these results is that the high removal of turbidity, COD, and apparent color showed that electrocoagulation was effective for treating gas scrubber effluents.Source: