Techniques for removing oil and grease from industrial wastewater
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
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ANIMALS
OILS
WASTE PROCESSING
PETROCHEMICAL PLANTS
LIQUID WASTES
VEGETABLES
COMPARATIVE EVALUATIONS
REVIEWS
CHEMICAL PLANTS
DOCUMENT TYPES
FOOD
INDUSTRIAL PLANTS
MANAGEMENT
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PROCESSING
WASTE MANAGEMENT
WASTES
020800* - Petroleum- Waste Management
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management