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Oily water separation

Oily water separation

Oily water separation

Hi folks,
I'm trying to get information on upgrading our wastewater system.  We currently process up to around 5000bbls/day of waste water and are looking to revamp the whole system.  One question I have is if height of a tank and volume outweigh surface area when trying to separate oil from water.  Our current system uses box style canals that are only 5' deep but probably have a total volume of 1000bbls capacity.  I'd like to make our primary separation a cylindrical tank with a height of 25' and a total volume of 2500 bbl cap., though it would probably be operated around the 15' level so 1500 bbls.  Heat is another factor that is possible using this tank that we wouldn't have in the canal design.  Thanks.

RE: Oily water separation

Or you could treat yourself to a copy of API421. Designing an OWS to meet API421 isn't rocket science.



RE: Oily water separation

The API Manual gives it all fro design/sizing. There is API Separator to separte large oil/TSS loads and is a rugged system and remove oil >150 micron. More compact Corrugated/Tilted Plate Interceptors (CPI/TPI)offer higher oil removal with >60 micron. If you have hign TSS and viscous stream, better to have API as first unit.    

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