No Filter. Just Physics.

Cleanawater on 9 April 2015

Cleanawater Hydrocyclone Oil Water Separator right

The problem: Oil in Water

The by-product of some industrial processes is oil-contaminated water, where tiny oil droplets have dispersed within the wastewater solution. Without the right equipment, it is difficult to extract oil from the wastewater so that it is safe to discharge or reuse.  

State governments have regulatory bodies in place to ensure that this water is safely managed and discharged. The government enforces wastewater discharge standards and issues fines for non-compliance.

There are a number of ways to remove oil from water, including coalescing oil separation and hydrocyclone oil separation. 

Hydrocyclone Oil Separators

Hydrocyclone Oil Separators apply extreme centrifugal force to separate oil particles from wastewater.

A Hydrocyclone’s primary construction comprises of a conical shaped chamber. This chamber has two exit outlets located at each end with one wastewater inflow inlet on the side. The wastewater enters the cyclone chamber and is spun at centrifugal forces of up to 1000 times the force of gravity.


separation performance hydrocyclone

how hydrocyclone oil separators work graphic3

The heavier water phase is forced to the outer wall of the chamber and discharged through the outlet located at the narrow conical end. The lighter oil phase migrates to the centre of the cyclone chamber and is pushed upwards then discharged through the top outlet.


Hydrocyclone Oil Separators are a highly effective, compact and low maintenance water filtration solution. This method of separation is ideal for industrial and commercial applications which require high quality filtration of large quantities of water.

  • Compact - Up to 90% smaller than traditional separator system
  • No moving parts means lower maintenence requirements
  • Large flow rates, available from 2,000 to 500,000+ litres per hour
  • Supplied pre-plumbed and pre-wired
  • Can remove oil droplets between 10-15 microns. Traditional oil separators function between 40-60 microns.

Cleanawater Hydrocyclones can have additional recycling and pre-treatement modules added to ensure that water treatment processes adhere to certain discharge standard requirements.

Call us to discuss your water recycling needs.

View our full range of Hydrocyclone Oil Separators