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Light liquid separator

Everything that experts need to know

What happens inside a light liquid separator?

How light liquid separators work - Phase 1: wastewater discharge

Wastewater discharge

The wastewater is routed into the light liquid separator, where the flow is largely stilled due to the large volume of the tank.

How light liquid separators work - Phase 2: formation of a sludge layer

Formation of the sludge layer

In slow-flow tanks, substances that are heavier than water sink to the bottom and settle in the sludge trap. 

How light liquid separators work - Phase 3: formation of a light liquid layer

Formation of the light liquid layer

Oil and fuel rise to the top where they form a light liquid layer, which is retained in the separator.

Where are oil or fuel separators installed?

Every installation situation is individual. As the tanks are often very large and need lots of space, an underground installation is advisable in most cases.

EasyOil ground System A

EasyOil ground System B

That’s not possible due to the circumstances on site? Not to worry: A exposed installation is also possible in exceptional cases. 

EasyOil free

What is the difference between system A and B light liquid separators?

System B light liquid separators (formerly class II) operate solely according to the principle of gravity. These separators are also called oil/fuel separators.

A “System A” light liquid separator (formerly class I) has an additional coalescence filter insert installed in it. The coalescence filter insert increases the performance of the separator by collecting even the smallest light liquid droplets and feeding them to the oil storage tank. Such a filter insert can also be used to subsequently convert a "System A" separator into a "System B" separator.  

Automatic SonicControl level sensing system

The SonicControl automatic layer thickness measuring device with ultrasonic sensor undertakes the precise monitoring and reporting of the oil and sludge layer thickness in coalescence and oil/fuel separators. Owners/operating companies can verify their actual volumes of light liquids to the relevant authorities and optimise the necessary disposal cycles outside the standard requirements if necessary.