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), Journal Name: Pollut. Eng.; (United States) Vol. 11:2; ISSN PLENB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020800* -- Petroleum-- Waste Management
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
ANIMALS
CHEMICAL PLANTS
COMPARATIVE EVALUATIONS
DOCUMENT TYPES
FOOD
INDUSTRIAL PLANTS
LIQUID WASTES
MANAGEMENT
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROCHEMICAL PLANTS
PROCESSING
REVIEWS
VEGETABLES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES