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EPS - Oil Water Separators (OWS)
Oil Water Separators (OWS), also known as coalescers, are effective for the continuous flow separation of non-emulsified free oils and other immiscible liquids. Since free oil can be a problematic contaminant for other treatment equipment, it is important to remove as much as possible before further treatment. An OWS can remove up to 100% of free oil larger than 20 microns.
An OWS uses a specialized oleophillic media pack that attracts oil and repels water. As the waste stream enters the tank, the oil agglomerates on the media pack as the water passes through. The oil agglomerate grows in size on the media pack until it eventually detaches and floats to the surface. The water portion of the waste goes through the media and then through a series of baffles to ensure a clean effluent. The oil that floats can be skimmed from the surface.
- Typical effluent contains less than 10 ppm free oil
- Reclaimed oil typically has less than 1% water content
- Oleophillic media able to handle high temperature
- Open tube media design allows any solids to settle to the bottom of the tank, which prevents media plugging
- Adjustable weirs make fine tuning very simple
- Construction options include coated steel, stainless steel, or polypropylene
- Flow ranges from 5 - 1000 GPM