Carver-Greenfield (sludge-drying) process
The Carver-Greenfield (sludge-drying) process being offered by Foster Wheeler Energy Corporation is a reverse-flow, multi-effect, fluidized bed evaporative-drying technique for converting any type of industrial or municipal sludge (even toxic ones) into sterile, dry solids of uniform consistency, which, depending upon the sources, may be used for fuel (burned directly as a boiler fuel or pyrolyzed and the resulting gas used as boiler or gas turbine fuel), fertilizers, soil conditioners, or animal feeds. The product may be stored without decomposing, or can be bagged and marketed. A typical plant includes an oil fluidizing tank, multi-effect evaporators, and a centrifuge. Almost any type of oil that is compatible with the sludge being dried and with the intended end use of the product may be used for fluidizing; various petroleum oils may be used when the product is to be used as a fuel. High levels of oil extraction are not necessary in this case, since the petroleum oil will provide a portion of the fuel required for the boiler furnaces. The process is described in some detail and its commercial applications are surveyed.
- OSTI ID:
- 5938921
- Journal Information:
- Heat Eng. (Livingston, N.J.); (United States), Vol. 48:6
- Country of Publication:
- United States
- Language:
- English
Similar Records
The Carver-Greenfield Process: dehydration/solvent extraction technology for waste treatment
Summary of the 1987 carver-greenfield sludge drying technology workshop: Problems and solutions. Held in Los Angeles, California on March 10-11, 1987
Related Subjects
SLUDGES
DRYING
WASTE PRODUCT UTILIZATION
ANIMAL FEEDS
COMBUSTION
ENERGY CONVERSION
ENERGY SOURCES
FERTILIZERS
FLUIDIZED BED
GASES
INDUSTRIAL WASTES
MUNICIPAL WASTES
PETROLEUM
PYROLYSIS
CHEMICAL REACTIONS
CONVERSION
DECOMPOSITION
FLUIDS
FOOD
FOSSIL FUELS
FUELS
OXIDATION
THERMOCHEMICAL PROCESSES
WASTES
320604* - Energy Conservation
Consumption
& Utilization- Municipalities & Community Systems- Municipal Waste Management- (1980-)
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management