End-of-pipe was treated via physico-chemical processes namely; coarse screen, screening followed by chemical coagulation/floatation under pressure. Screening was already available in the factory. Is is a cylindrical in shape with a diameter of 1.25 meters, 2.40 meters length and mesh size 20. The coagulant used for chemical coagulation was alum aided with cationic polymer. The optimum coagulant doses and the pH, were determined.