Orange County NC Website
Browse       Search
<br />2.2 Refuse Derived Fuel (RDFI <br />® The second of the two predominant technologies for WTE facilities in the world. <br />® Has had more problems than mass-burn and is considered to have higher performance and <br />financial risks. <br />® In its form as delivered to the combustor, RDF is shredded MSW with ferrous and non- <br />ferrous metals removed. <br />® It can be further processed to recover glass and other non-combustible material. <br />® RDF is delivered as "fluff' to a boiler or furnace for combustion, or it can be pressed into <br />pellets before delivering it for combustion. <br />® RDF production is a separate process from combustion. Therefore, the RDF facility does <br />not have to be co-located with the combustion units, although close proximity improves <br />efficiency of operations. <br />® Once charged into a boiler or furnace, RDF facilities operate similarly to mass-burn plants, <br />in that they recover heat energy for generation of steam and/or electricity for sale. <br />® Bottom and fly ash can be processed to recover metals and to produce light aggregate as <br />with mass-burn units. <br />® Also as with mass-burn, ash must be tested for hazardous constituents and has routinely C <br />been found to be anon-hazardous material. <br />A typical RDF facility is shown in Figure 2. <br />C <br />4 April 16, 2009 <br />Figure 2 'iiy~i~al i$i~0= Pr~tc ink hee~~i~ <br />