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Evaluation of rotary drum air-classification of shredded and unshredded municipal solid waste: Final report

Technical Report ·
OSTI ID:6660152
The City of Albany owns a plant that produces some 3000 tons-per-week of a crude refuse-derived fuel (RDF). This RDF consists of shredded raw municipal solid waste (MSW) from which most of the ferrous metals are removed by magnets. The City sells the crude RDF to the State of New York, and the State burns it in two spreader-stoker-fired boilers, each of which produces some 100,000 pounds per hour of superheated process steam. Large pieces of metal and shredded glass in the RDF make it difficult to operate the State boiler plant. A Transportable Rotary Drum Air-Classifier was used to produce improved RDF, which was test-fired in the State boiler plant. The improved RDF was produced first by air-classifying the crude shredded RDF, and next by air-classifying raw incoming MSW and shredding the light fraction produced thereby. The light fractions and the heavy fractions produced by air-classifying shredded and unshredded MSW were tested for moisture content, ash content, composition, size distribution, and chemical content. The improved RDF resulted in better boiler performance and virtual elimination of problems caused by large pieces of metal and excessive amounts of glass in the RDF.
Research Organization:
AENCO, Inc., Minnetonka, MN (USA); New York State Energy Research and Development Authority, Albany (USA)
OSTI ID:
6660152
Report Number(s):
NYSERDA-87-4; ON: TI87900635
Country of Publication:
United States
Language:
English

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Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604* -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
510500 -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
CLASSIFICATION
FUELS
MANAGEMENT
MATERIALS RECOVERY
MUNICIPAL WASTES
PROCESSING
RECOVERY
REFUSE DERIVED FUELS
SOLID WASTES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES