As water passes through the electrocoagulation cell,multiple reactions take place simultaneously. First, a metal ion is driven intothe water. On the surface of the cathode, water is hydrolyzed into hydrogen gasand hydroxyl groups. Meanwhile, electrons flow freely to destabilize surfacecharges on suspended solids and emulsified oils. As the reaction continues,large flocs form that entrain suspended solids, heavy metals, emulsified oilsand other contaminants. Finally, the flocs are removed from the water indownstream solids separation and filtration process steps.