Typical oily water separator installations are shown on this page. The packaged oily water separator designs shown on this page treat fuel and petrol contaminated water. Similar packaged systems are also be used for a variety of other applications, including treating oily water from mine sites, workshops, car washes, and parts washing.

Standard configuration oily water separators

This configuration is often used on petrol service station / gas stations.

The process diagram on the right shows a simple automatic system for the batch treatment of oily wastewater that is often used on petrol service stations / gas stations. Click on the diagrams to see an enlarged picture. Design features of this configuration include:

• Capture and removal of small oil spills.
• The oily water system removes emulsified oil, hydrocarbons and grease.
• The system uses an oil skimmer to minimises oil spill potential - no oil build-up or storage in the ground.

• Treat water that contains dissolved hydrocarbons such as benzene.
• Helps remove neutrally buoyant debris such as organic matter.
• Acts as a water-polishing filter.

High Oil Load / Spill with Aeration

This configuration is often used on refuelling sites such as an oil company fuel depot. Design features of this configuration include:

• Capture and treat large oil spills. The first compartment can be sized to accommodate that largest expected on the site.
• Treat the oily wastewater to remove emulsified oil, hydrocarbons and grease.
• Aeration system to treat dissolved hydrocarbons.

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