Sludge predrying using bed sand from a fluidized bed incinerator
The concept of incinerating a sludge for destruction began a few decades ago with the advent of the multiple hearth incinerator. In the 1960's, the fluidized bed incinerator began to make inroads into the sludge incineration market, especially in smaller units that operated less than 24 hours/day. The fluidized bed incinerator gained further recognition when documentation appeared on the presence of hydrocarbons in the gaseous emissions from the multiple hearth, which ultimately led to legislation requiring after-burning of the multiple hearth's emissions. The posture of fluidized bed incineration was further enhanced by the development of heat exchange of the incinerator exhaust gas with the combustion air required for fluidization. Preheating this combustion air to 811/sup 0/K represented a considerable heat conservation. Today's heat exchange equipment can preheat the air to 922/sup 0/K.
- OSTI ID:
- 6558151
- Report Number(s):
- CONF-871113-
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320604* -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
42 ENGINEERING
420900 -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
CHEMICAL REACTIONS
COMBUSTION
DEHYDRATION
DRYERS
DRYING
ECONOMICS
EFFICIENCY
FABRICATION
FLUIDIZED BEDS
HEAT EXCHANGERS
HIGH TEMPERATURE
INCINERATORS
INDUSTRIAL PLANTS
MANAGEMENT
MATERIALS WORKING
MUNICIPAL WASTES
OXIDATION
PRESSING
SAND
SEWAGE
SEWAGE SLUDGE
SLUDGES
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING PLANTS
WASTES