Oily water is drawn from the holding tank in to the separator, with suction provided by a positive placement pump on the discharge side of the separator.
Several separation zones are created by the inlet weir and baffle, 2 coalescer beds, and the quiescent water spaces between them.
The upper zone of the tank enhances gravity separation. The inlet baffle diverts the flow away from the upper coalescer bed, enabling oil droplets to float to the tank top. The inlet weir divides the oil accumulated in the tank top from the inlet flow.
the polypropylene granules contained in the coalescer beds attracts oil and repel water, (oleophylic-hydrophobic), allowing water to flow through, while the oil remains behind on the surface of the polypropylene. These oil droplets accumulate in the beds and grow in size, then become buoyant and float to the tank top.
The clarified effluent exits through the outlet in the tank bottom and is discharged by the pump