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Wyuna Separation Technology

Oil Water Separator Specialist

Refinery Waste Stream


  • Refinery & Petrochemical
  • Waste Oil Collection
  • Produced water clean-up
  • Oil Tanks Farms & Fuel Depots
  • Solvent Extraction Operations


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WyunaSep Oily Water Separation System for Refinery & Chemical plants

WyunaSep Hydrocyclone separators are one of the best ways to separate two non-mixing liquids. Almost any hydrocarbon oil and most non-hydrocarbon oils such as corn, orange, or other vegetable oils may be separated from water very satisfactorily. The WyunaSep separator uses flow velocity created centrifugal force due to its unique design for removing oil droplets from water. The design utilizes the difference in specific gravities between the oil and the water to perform the separation. WyunaSep has many years of experience in designing systems for varying applications to reduce industrial water pollution. Please contact WyunaSep  to discuss all of your separation needs for process improvement or effluent control.
WyunaSep  Hydrocyclone separators can be used for:
  • Separate oil from wastewater as an industrial pre-treatment system prior to directing the water to sewer or other disposal.
  • Separate oil from circulating water or other aqueous phase systems to remove the oils so that the stream can more economically be reused or so that the oil in the water stream does not cause problems elsewhere in the system by fouling heat exchangers or catalysts.
  • Separate oil from water so that the water may be purified and reused or recycled.
  • Can be used either internally in chemical plants or oil refineries or in plant or refinery outfall streams.
  • Industrial pre-treatment of waste streams prior to disposal to sanitary sewer systems:
When the choice exists of either discharging wastewater effluent into a lake or stream, or to the sanitary sewer, the best choice is often the sanitary sewer. This is because the outlet oil concentration requirements are usually less stringent. Sanitary sewer plant operators usually require that any plant wastewater streams meet certain required characteristics – or be pre-treated to meet those requirements.
The requirements for pre-treatment may in certain instances be very stringent, but usually range from 50 mg/l of oil to about 150 mg/l. These treatment levels are readily achieved by the use of WyunaSep  technology.
Pre-treatment systems can be any size or configuration, but are generally relatively small in chemical plants because plants try to minimize their waste streams. WyunaSep  water pollution control systems are designed to handle collection tank sump or pumped flow on a single-pass or re-circulating basis. The separator vessel is usually constructed of  stainless steel, MS, corrosion and erosion resistant cast polyurethane.

Wyunasep Modules– Chem-3 & 3S to 500 & 500S

High Performance:

WyunaSep  liquid /liquid hydrocyclones can treat emulsions with oil droplets below 15 microns. (50 to 100 microns for competitor's systems).
More reliable oil separation performance. Units are not affected by debris build up or inadequate maintenance, as can occur with other systems.
The treatment system is closed hence there are no equipment smells or vapor emissions.

Low Maintenance:

No plates, or Hopper to clean leading to lower yearly maintenance costs.
No closely packed plates to block.
No algae chemical dose required. No large stagnant volumes.
All our systems use high quality stainless steel piping and frames.
No occupational health & safety issues like with plate pack cleaning.

Easy Installation/Use:

Our most models are easily manoeuvrable and will fit into confined or hazardous spaces.
Pressurized oil and water discharge allows flexibility in site location and savings because re-pumping is not required.
Standard systems are fully pneumatic with no electrical connections. This greatly simplifies and reduces the cost of installation.

Operational Flexibility:

Has the ability (via recycle option) to batch treat very difficult emulsions, and discharge water when oil content is below limits.
With low cost recycle option, equipment has the ability to meet future oil discharge limits without additional capital expenditure.
Removed oil is stored in large above (or below) ground decanting containers, extending the time between oil waste collections.
Because our systems use skimmers, oil layers do not accumulate in the effluent pit so little or no oil will escape if the pit accidentally floods.

Feature, Which Means?

Foot Print

Compact, 10% the size and weight of conventional systems. -2 to 24 m3 = 1 to 1.5 m2 area.

Oil content

single cycle <20 ppm or recycle + DHRR <5ppm in two stage ?Clean water with no chemicals. ?Effluent can be recycled for continuous treatment.

It is the most economical.

Lowest cleaning & maintenance bills. Lowest repair & parts replacement bills. Lowest total ownership cost over 2 to 4 years.

Highest performance

Ensure discharge compliance. Satisfies Regulatory authorities. More likely to meet tougher new Regulations.

Lowest maintenance

You can get on with your business.

Fully pneumatic.

Complies with Standards for hazardous Waste Zones.