How Separating Oil and Water Works

Utilising random packed separating media technology, our oil separators have a two stage separation process that ensures treated waste water by separating oil and water which exceeds authority standards, and is suitable for discharge. Our oil water separators are classified as coalescing type separators, where oil droplets in suspension within the moving water stream are removed by the coalescing process through the separating media.

In the oil water separators, as the droplet increases in volume it's buoyancy also increases, driving the droplet to the top of the surface. As the oil level grows on the top surface it overflows to a waste oil collection container for disposal. Similarly, but in reverse sequence, the solids particles impinge on the ring surfaces and lose their velocity. Gravity will draw them to the base of the unit as their particle size increases.

Upon passing through the two stage impassable path for oil water separation created by the packed media coalescing process, water is now treated by separating oil and water and via the oil separator outlet is ready for disposal.

Installation Diagram

Australian Oil Separators Schematic


1. Untreated water drains into silt basket.

2. Water is pumped from the collection pit up to the oil separator for a 2 stage packed media treatment process to ensure oil water separation.

3. Treatment process of oil water separation complete and treated water is now ready to discharge to sewer.