Klargester Washdown Silt Separator

The Environment Agency's PPG3 requires that discharge from pressure washers must discharge to a foul drainage systems. Where there is no foul drainage available, the effluent must be contained within a sealed drainage system or catch pit for disposal by a licensed waste contractor.

Silt build-up is the main problem with washdown facilities. The Conder CWS range of washdown and silt separators is used to remove the silt and will allow some separation of hydrocarbons.

Detergents that are used in wash down areas will break down and disperse the hydrocarbons, hindering the separation process. Therefore, it is important to remember that the main function of wash down separators is to remove silt.

Although it is recognised that single stage separators provide the most efficient separation, 2 and 3 chamber CWS silt separators are available on request.

Application areas:

• Car wash facilities
• Tool hire depots
• Pressure washer facilities

Forecourt Separators

Forecourt separators are full retention separators specified to retain on site the maximum spillage likely to occur on a petrol filling station. They are required for both safety and environmental reasons and will treat spillages occurring during vehicle refueling and road tanker delivery. The size of the separator is increased in order to retain the possible loss of the contents of one compartment of a road tanker, which may be up to 7,600 litres.

Separator Standards and Types

A British (and European) standard (BS EN 858-1 and 858-2) for the design and use of prefabricated oil separators has been adopted. New prefabricated separators should comply with the standard.

Separator Classes

The standard refers to two ‘classes’ of separator, based on performance under standard test conditions.

Class I

Designed to achieve a concentration of less than 5mg/l of oil under standard test conditions, should be used when the separator is required to remove very small oil droplets.

Class II

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 (for example where the effluent passes to foul sewer).

Both classes can be produced as full retention or bypass separators. The oil concentration limits of 5 mg/l and 100 mg/l are only applicable under standard test conditions. It should not be expected that separators will comply with these limits when operating under field conditions.

Septic Tank Supplies Summer Sale

Septic Tank Supplies Summer

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