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Fiiif.ie Radiant Libre <br />Turbine, Added <br />chute neudbur <br />stem <br />Cartim Dolomitic <br />Sdo Lim <br />Mew, Daidnt� cou—S <br />Grate Strike, Lime Enrissuart. <br />Surface Gurle Added Manurin <br />Cw <br />Mal 'a <br />Figure B+2. Typical Mass-Burn Watermall <br />The off-gas exiting the boiler passes through an air pollution control system where <br />the majority of pollutants is removed and is discharged through a stack to the <br />atmosphere. Waste <br />is burned out toan ash in the furnace. Heat extracted from the <br />vvatenwa||e and the boiler section generates steam which, in most facilities, is <br />directed to a turbine generator for electric power production. VVatenwa|| systems are <br />fabricated on-site. They are generally applied to larger systems, 200 TPD up to 750 <br />TPD, with multiple units used when higher capacity is required. They are forgiving in <br />their operation, and are reasonably efficient in the burnout of waste and in the <br />generation ofenergy. <br />1.1.2 Mass-Burn/ Modular Combustion <br />Modular combustion is another incineration process. Unprocessed SVV is |aoed <br />directly into a refractory lined chamber. The primary chamber of the incinerator <br />includes a series of charging rams which push the burning waste from one level to <br />another until it burns out to an ash and is discharged to a wet ash pit, as in Figure 13- <br />3. No or limited under-fire air is used to limit the entraining of ash into the flue <br />(exhaust) gas stream. <br />4 Source: Fairfax County, VA. <br />GB8/C08027-01 B-5 August 15,2OO8 <br />