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The upstream sludge trap removes
solids from the run-off, thus ensuring unimpeded functioning of the oil
separator itself.
The flow-in into the separtor is designed in a way that the mixing of
different fluids is kept to a minimum.
In the separtor, the lighter oil floats to the top of the water.
The water that has been cleaned in this way is now channeled to the
second stage, the residual oil coalescence filter. Here, the smallest
oil droplets, which have not yet floated to the surface, are coalesced
into larger drops which can then float freely up the surface.
In order to clean the filter it is withdrawn from the chamber opening,
purified with clean water and re-inserted. The filter material has been
thoroughly tested and is reusable.
At the inlet of the gravity separation chamber a shut-off valve prevents
backflows through the sewage system as soon as the max. oil storage
volume has been reached.
A control vent at the separation chamber enables samplings, thus avoid
ring a specific manhole.
An additional oil catch container can be fitted in the gravity
separation chamber to make it possible to dispose of the separated light
fluids that are already free of any water components. This accounts for
greatly reduced operating costs.
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