Separators

Oil separators prevent the pollution of our rivers and streams, by containing hydrocarbons (eg diesel, petrol or engine oil) that have entered a drainage system.

Product Overview

Pollution prevention is a critical part of sustainable drainage systems.  Oil separators prevent the pollution of our rivers and streams, by containing hydrocarbons (eg diesel, petrol or engine oil) that have entered a drainage system.

There are statutory regulations in force to control the discharge of hydrocarbons, with severe penalties imposed for non-compliance. Our range of oil separators fully conform to both the Environment Agency’s latest PPG3 guidelines and European standard BSEN-858-1-2 and are proven to effectively separate oil and water. Under test, our Bypass Separator performed to less than 1mg/l and can, therefore, protect the environment and public safety.

The European Standard refers to two ‘Classes’ of Separator:

  • Class 1 separators are designed to achieve a concentration of less than 5mg/l of oil under standard test conditions. These separators are required for discharges to surface water drains and the water environment.
  • Class 2 separators are designed to achieve a concentration of less than 100mg/l oil under standard test conditions and are suitable for dealing with discharges where a lower quality requirement applies such as discharges to the foul sewer (with consent from your sewer provider).
  • Both classes can be produced as ‘Full Retention’ ‘By-Pass’ or ‘Forecourt’ separators.

 

 

 

Product Selector

Is there a risk of oil contaminating the drainage from the site?

YES

YES

YES

YES

NO

Risk of infrequent light contamination and potential for small spills only e.g. car park

Risk of regular contamination of surface water run off with oil and/or risk of larger spills e.g. vehicle maintenance area, goods vehicle parking or vehicle manoeuvring.

Drainage will also contain dissolved oils or degreasers such as vehicle wash water and trade effluents e.g. industrial sites.

Fuel oils are delivered to and dispensed on site e.g. retail fuel forecourts

Very low risk of oil contamination e.g. roof water

YES

YES

YES

YES

YES

Source control SUDS must be considered and incorporated where suitable

Separator not required

IF NOT SUITABLE

 

Bypass separator with alarm required. Class 1 if discharged to surface water. Class 2 is discharged to foul sewer.

Full retention separator with alarm required. Class 1 if discharge to surface water. Class 2 if discharge to foul sewer.

Trade effluents must be directed to the foul sewer. It may need to pass through a separator before discharge to sewer to remove.

Full retention 'forecourt' separator with alarm required. Class 1 if discharge to surface water. Class 1 or 2 if discharge to foul sewer.

Clean water should not be passed through the separator unless the size of the unit is increased accordingly.

The use of SUDS should be considered at all sites and they should be incorporated where suitable. SUDS can be used to polish the effluent from these separators before it enters the environment.

Source control SUDS should be considered where possible

    Products

  • Full Retention Separator
  • Bypass Separator
  • Forecourt Separator
  • Washdown Separator

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