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Ded <br />(ye,fi=�i <br />4a � <br />lag m6 ran o""k, <br />Bas""mw <br />Figure B-6. Typical RDF Fluid Bed SystemB <br />Fluid bed incineration is more efficient than grate burning-based incineration ~ <br />systems. The bad is very effective i n <br />waste destruction and requires less air flow <br />than mass-burn or modular systems. The fluid bed ' however, does require relatively <br />uniform-sized material, and RDF preparation is necessary for system operation, not <br />for resource recovery, as discussed above. <br />1.2 "Emerging" Technologies <br />There are many technologies currently being proposed for the treatment and <br />disposal of PSV throughout the world. <br />Most of these involve thermal processing, <br />but some others comprise the biological or chemical decomposition of the organic <br />fraction of the waste to produce useful products like compost or energy products, <br />notably synthetic gas (syngas) for downstream combustion. <br />Thermal processing refers to a number of different types of technologies utilizing <br />heat as the mode of waste treatment. However, most of them, as listed and <br />described below, are variations of conventional incineration. <br />Ga�uuce�o ' Heating of organic waste to produce a burnable gas (approximately <br />id mix) for As long astheoff� <br />85 percent hydrogen and carbon monoxide rn�^ ' <br />gas produced from the' system is usable and burned off-site, the system is gasifier, <br />not an incinerator. Typically, the energy in MSVV is both used to fire the systenn and <br />contained in the gas product. <br />' Aforrn of gasification where organic waste is heated without air. A gas is <br />z������ ' that i� burned in the gaseous phase, requiring much less oxygen than <br />generated <br />^''~^ '~ --'�'-- the ~ � generates a char, or depending on <br />conventional incineration. This process also gene , ' <br />�" <br />the process temperature. (Fht is a glassy, g <br />nanuiar material that is uniform in <br />appearance.) The presence of a secondary combustion chamber for the burnout of <br />the pyrolysis gas requires that this system be classified aoanincinerator. <br />Plasma arc' ' Plasma arc refers to the means of introducing heat into the process. <br />Essentially " plasma arc system is a pyrolysis or starved air process generating heat <br />by firing the waste with a plasma arc to produce a syngas, which is then combusted <br />to produce steam and/or electricity, and |s classified aoanincinerator. If the system <br />8 5ource: Energy Products nf Idaho, Coeur DY\lene,ID. <br />GBB/C08027-01 B-9 August 15, 2008 <br />