skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Techniques for removing oil and grease from industrial wastewater

Journal Article · · Pollut. Eng.; (United States)
OSTI ID:7038306

A discussion covers the ease of treatment of animal or vegetable greases or oils compared with those found in petrochemical processing wastes; the concentration ranges of greases and oil found in various wastewaters, e.g., 100-1000 mg/l. in petroleum refinery wastewaters; physical treatment by gravity separation, dissolved air flotation, and gas flotation; free-floating oil and emulsions; chemical treatment of emulsions by the addition of acid to break the emulsion, coagulation with a neutralizing agent, e.g., lime, followed by final separation, e.g., by gravity settling; membrane processes for the removal of emulsified oils, e.g., ultrafiltration and reverse osmosis; biological treatment; chemical treatment followed by activated carbon adsorption as an alternative to biological treatment; and disposal of waste oil and sludges.

Research Organization:
Consult. Environ. Eng. Inc.
OSTI ID:
7038306
Journal Information:
Pollut. Eng.; (United States), Vol. 11:2
Country of Publication:
United States
Language:
English