Ballyback
Petrol/Oil Interceptors 
 
This chart gives guidance to aid selection of the appropriate type of oil separator for use in surface water drainage systems which discharge into rivers and soakaways.
 
 Petrol/oil interceptor chart
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 


 
 
 

 

 
 


 
Note that throughout this section the term ‘separator’ is used instead of the term ’interceptor’.

Surface water drains normally discharge to a watercourse or indirectly into underground waters (groundwater) via a soakaway. Contamination of surface water by oil, chemicals or suspended solids can cause these discharges to have a serious impact on the receiving water.
Oil separators are installed on surface water drainage systems to protect receiving waters from pollution by oil, which may be present due to minor leaks from vehicles and plant, from accidental spillage or due to deliberate and illegal tipping into drains.
 
1 You must seek prior permission from your local sewer provider before you decide which separator to install and before you make any discharge.
2 You must seek prior permission from the relevant environmental body before you decide which separator to install.
3 In this case, if it is considered that there is a low risk of pollution a source control SUDS scheme may be appropriate.
4 In certain circumstances, the sewer provider may require a Class 1 separator for discharges to sewer to prevent explosive atmospheres from being generated.
5 Drainage from higher risk areas such as vehicle maintenance yards and goods vehicle parking areas should be connected to foul sewer in preference to surface water.
6 In certain circumstances, a separator may be one of the devices used in the SUDS scheme. Ask us for advice.
 
                   
This chart gives guidance to aid selection of the appropriate type of oil separator for use in surface water drainage systems which discharge into rivers and soakaways.
For further detailed information, please consult the Environment Agency Pollution Prevention Guideline No. 3. (PPG 3) "Use and design of oil separators in surface water drainage systems” available from their website.
Klargester Environmental has a specialist team who provide technical assistance in selecting the appropriate Separator for your application.
 
Fuel/Oil Separator Range: Features and Benefits
 
Full Retention Separator NS RangeFull Retention Separator NS Range
  • Used on high risk sites
  • All surface water treated
  • Sized in litres per second flow
  • Available in Class I and Class II formats:
    - Class I includes coalescer and closure device, treating 10% of flow to achieve a concentration of 5mg/litre of oil
    - Class II to achieve concentration of 100mg/litre of oil
 
 
Full Retention Separator NSBD RangeBypass Separator NSBD Range
  • Sized in litres per second flow
  • Used on low risk sites (Car parks)
  • Available in Class I and Class II formats                     
    - Class l includes coalescer, treating 10% of flow to achieve a concentration of
    5mg/litre of oil
    - Class II to achieve concentration of 100mg/litre of oil
 
 
 
Washdown Separator - Petrol
Washdown Separator
  • Used in areas such as car wash applications, tool hire depots, truck cleansing,
    construction compounds cleansing points
  • Discharge directly into a foul drain, which feeds to a municipal treatment facility
 
 
 
 
 
 Silt Traps - PetrolSilt Traps
  • Designed for use before a separator in car wash applications to ensure effective silt removal.
  • Light and easy to install
  • Galvanised heavy duty cover
  • Maintenance from ground level
 
 
 
 
 
Alarm SystemsAlarm Systems

British European Standard BS EN 858-1 and Environment Agency Pollution Prevention Guideline PPG3 requires that all separators are to be fitted with an oil level alarm system and that it should be installed and calibrated by a suitably qualified technician so that it will respond to an alarm condition when the separator requires emptying.
  • Easily fitted to existing tanks
  • Excellent operational range
  • Visual and audible alarm
  • Additional telemetry option
 
 
 
 
 
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