SWAG agenda 082514 - Laserfiche WebLink

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Comprehensive Review of S olid W aste Collection and Disposal Options v2.1 156 10/22/12  Compatible with municipal recycling activities  Potential for less environmental impact 12.3 CONVENTIONAL WTE TEC HNOLOGY 12.3.1 Basic Combustion System The combustion of solid waste is accomplished in a furnace equipped with grates. A solid waste combustion system with energy recovery includes:  Some type of structure to house the furnace and its appurtenances;  A "tipping floor" where the solid waste from collection and transfer vehicles is deposited;  A storage pit or floor to store the solid waste delivered (solid waste combustion is a 7 days per week, 24 hours per day operation; storage space is provided to enable this continuous operation);  A charging system (normally overhead cranes) which mixes the various solid wastes received to develop a somewhat uniform material and then lifts it from the storage pit or floor and feeds (charges)the furnace;  One or more furnace subsystems (sometimes referred to as combustion trains), which receive and burn the solid waste;  A grate unit to move the solid waste through the furnaces; the most common grate designs are: - Reciprocating Grate. This grate design resembles stairs with moving grate sections which push the solid waste through the furnace. - Rocking Grate. This grate design has pivoted or rocking grate sections which produce an upward and/or forward motion to move the solid waste through the furnace. - Roller Grate. This grate design has a series of rotating steep drums or rollers which agitate and move the solid waste through the furnace.  Air pollution control subsystems to clean up the combustion gases; and,  An ash handling subsystem to manage the fly ash and bottom ash produced from the combustion of solid waste.