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2. API oil–water separator - Wikipedia

   en.wikipedia.org/wiki/API_oil–water_separator

   An API oil–water separator is a device designed to separate gross amounts of oil and suspended solids from industrial wastewater produced at oil refineries, petrochemical plants, chemical plants, natural gas processing plants and other industrial oily water sources.

3. Imhoff tank - Wikipedia

   en.wikipedia.org/wiki/Imhoff_tank

   Imhoff tank. a - upper chamber, b-c - outlet for sludge, d - outlet for biogas (would need to be higher), f - lower chamber, g - slot for sludge to pass from the upper to the lower chamber, h - height. The Imhoff tank, named for German engineer Karl Imhoff (1876–1965), is a chamber suitable for the reception and processing of sewage.

4. Oil–water separator - Wikipedia

   en.wikipedia.org/wiki/Oil–water_separator

   Downhole oil–water separation (DOWS) technology is an emerging technology that separates oil and gas from produced water at the bottom of the well, and re-injects most of the produced water into another formation which is usually deeper than the producing formation, while the oil and gas rich stream is pumped to the surface.

5. Centrifugal water–oil separator - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_water–oil...

   In the plate packs the oil will rise because of their buoyancy and coalesce on the underside of the plates and form globules of oil that rise to the surface. [4] From there the waste oil globules go into the clean water chamber and are discharged through the lower portion of the separator. With the interceptors the dirty water mixture enters ...

6. Separator (oil production) - Wikipedia

   en.wikipedia.org/wiki/Separator_(oil_production)

   A heated-water bath is probably the most effective method of removing foam bubbles from foaming crude oil. A heated-water bath is not practical in most oil and gas separators, but heat can be added to the oil by direct or indirect fired heaters and/or heat exchangers, or heated free-water knockouts or emulsion treaters can be used to obtain a ...

7. Clarifier - Wikipedia

   en.wikipedia.org/wiki/Clarifier

   Economy favors using small tanks; but if flow rate through the tank is too high, most particles will not have sufficient time to settle, and will be carried with the treated water. Considerable attention is focused on reducing water inlet and outlet velocities to minimize turbulence and promote effective settling throughout available tank volume.