AUTO MOBILE INDUSTRIES effluent consists of many pollutants like Free Oil & Grease (FOG), Surfactants & Chemical Oxygen Demand (COD). There can be some particulate matter also as a result of floor washing water getting mixed with care wash effluent.
A treatment for this effluent is at best tricky & treatment scheme needs to be decided carefully.
The treatment depends upon the treatment goals which can be described as below: