A Review of treatment of oily waste water by electrocoagulation
Keywords:
electrocoagulation, oily wastewater, Aluminium electrode, iron electrode, current densityAbstract
Oil pollution in water usually comes in four states that are free oil, heavy oil, emulsified and dissolved oil,
where the droplets are fully dispersed and not visible. Emulsified oil droplets are the most common in industrial oily
wastewater and are extremely difficult to separate. The methodology for separating the oil is dependent on the oil droplet
size. We are applying electrocoagulation process by using Aluminium, iron and combination of both electrodes for
treatment of oily wastewater. The current density, initial pH, electrocoagulation time will play an important role in
decreasing the turbidity and increase oil removal from emulsion. This process will separate the oil from the oily
wastewater as well as it is effective in the reduction of chemical oxygen demand