Bulky wastes (e.g., furniture) (may be acceptable if reduced in size)
Noncombustible wastes (not including glass bottles, cans, etc.) Explosives
Tree stumps and large branches (may be acceptable if reduced in size)
Large household appliances (e.g., stoves, refrigerators, washing machines)
Vehicles and major parts (e.g., transmissions, rear ends, springs, fenders)
Marine vessels and major parts Large machinery or equipment Construction/demolition debris Tires
Lead acid and other batteries Ashes
Cesspool and sewage sludge Tannery waste Water treatment residues Cleaning fluids
Crank case and other mechanical oils
Automotive waste oil
Regulated hospital and medical wastes Infectious waste Dead animals Radioactive waste
Stringy wire (e.g., fencing and trolling wire)
Source: M.J. Clark, M. Kadt, and D. Saphire, 1991, Burning garbage in the US, edited by Sibyl R. Golden (New York: INFORM, Inc.).
calculated based on an MSW density of 350 lb/cu yd of pit volume.
Refuse tends to flow poorly and can maintain an angle of repose greater than 90°. Thus, plants commonly stack refuse in storage facilities to maximize storage capacity.
Storage pits are usually long, deep, and narrow. A pit can be located in front of the furnace or a pit can be situated on each side of the furnace. If the storage pit is over 25 ft in width, the refuse dumped from the trucks must generally be rehandled. The floor of storage pits is pitched to the facilities' drainage. Storage pits are constructed of reinforced concrete with steel plates or rails along the sides, which protect them against damage from the crane bucket. The pit is usually enclosed in the MSW storage building, in which combustion air for the furnace is drawn. This arrangement creates a slight vacuum inside the building which draws in atmospheric air and prevents the escape of odors and dust.
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