443948 Refinery Wastewater Treatment for 'zero Liquid Discharge'

Wednesday, April 13, 2016: 1:30 PM
344AB (Hilton Americas - Houston)
V. S. K. Sajja, Fluor, Sugar Land, TX and Rafique Janjua, Fluor, Sugarland, TX

Entire wastewater from a large refinery was selectively treated for oil removal, then for BOD/COD removal and comingled with freshwater cooling tower blowdown. After equalization of the streams divalent cation were reduced by physical chemical treatment followed by multi-pass multistage Reverse Osmosis membrane process. Reverse Osmosis brine was further treated with falling film thermal evaporator. More than 95% of the water was recovered.

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See more of this Session: Environmental and Water Solutions
See more of this Group/Topical: Topical 7: 19th Topical Conference on Refinery Processing