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Show .r ' .. " technologies stould add a significant set -of new options for cleaning up SUperfUIXi sites. .- Electric Infrared Furnace. 'lbis themal treat:Irent process developed by Shirco Infrared Systans, IIx:., uses a prinmy chanber where infrared . . ' energy is provided by electrically p:Mered silical camide rods. ; ' ~ -:" ..- ' .'1' ~ 'l'aIperatures in the prinmy chanber can reach l850CT and resiciea=e ~ ... . tines can range fran 10 to 90 minutes. Organic materials volatilized , in the prinmy ~..r enter a secondary cbanber where cad:rustian is carpleted at taIpmltures up to 23000F and 2 seconds gas resiciea=e time. Exhaust gases then pass through a venturi scrubber spray tower. . .. .. ': . There are orer 40 infrared systans installed througlxJut the world . ~. . ~' :~,'" ~,-k' used for incineration of mmicipal aId iD:hlstrial sludges am activated '" ;;,~,:,! . carron regeneration. A portable pilot unit, bou.sed in a 45 ft van trail- • ~ '~\ ., . . ;.1.' ~ ... ~ er am capable of precessing 30 to 100 lbs/lxrur has been built ani tested . . .. .. ' '. " at several hazardrus waste sites. The SITE dem:mstration will involve a larger unit capable of processiD] between 100 aId 250 tans per day. This IrCbile systan can be JIOlIlted on trailers and can be installed at a ' site in appraxi.IIatelyone week. .' . ~ " : . ,; •• ~~.~.~,~"~, t •• • OJ, • ' ~I : . _ • .... ~, • .' ." •• \ " _. The infrared furnace is designed to itx:inerate soil or sludge contaminated with organic bazarda.ts constituents such as PCBs, pesticides, and dioxins. At Tines Beach, Missiouri, the portable systan achieved a destruction and raooval efficien:y (tRE) of 99.999996 percent on soil contajnjng 2Z1 PIi> of 2,3,7,8 'lOJD. At Joplin, Missouri, the portable infrared fmnace was used to decontaminate creosote sludges arxl achieved a ORE of 99.99999 percent -o-n pentachlo~l and 99.99 on napthalene. CirculatiIy Bed Ccni:rustor. ~is advanced fluidized bed incinerator was developed by GA Technologies (DOll Ogden Envirorm:mtal SeIvices). High velocity air suspeOOs a bed of solid particles in the ccnDustion chanber. 'Ibis creates a hlghly tt.u:bul.ent carbustion zone with tarperatures in the range pf 1425°F into which solid or liquid waste feeds can be introduced. Solidified rraterials have a residence tine of 30 minutes while gases have a residence time of 2 secoms. There is IX) aftemurner. The suspeOOed bed naterials (and waste solids) that leave the carbustion chamber are recOV'erecr in a cyclone and recirculate through the furnace. '!he exhaust gases pass through a convective gas cooler and flue gas filter. There are 27 circulating bed caOOustors operating world wide burning naterials such as high sulfur coal, peat, \\OCXi, waste oils, and mmicipal waste. A t.ransp:>rtable pilot unit with soil feed rates of 400 lbs/Wur achieved a ORE of 99.9999 percent on soils contaminated with PCBs at 10,000 ppn. A pennit to destroy PCBs has been issued by EPA Region IX to this unit under the Toxic Substances Control Act. Test bw:ns were also coOOucted on a mixture of organic liquids and Several halogenated cCJrpa.lnls. IREs of at least 99.99 percent were achieved for Freon 113, carbon tetrachloride, ethylbenzene and zylene. A research, developnent, and daronstration pennit bas been issued for this unit under the Resource Conservation and Recovery Act (R~) to destroy a nunber of other hazardoos wastes. A SITE daronstration will be coIXlucted at the 2 million B'ru/OOur unit located in San Diego, CalifoIDia. 4 .. - ... : ". ' . .. r· .... |