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Show Oxygen Enriched Bunler. A proprietaIy burner developed by Anerican Cmbustion Teclmol.ogies, In:., uses p,lre oxygen in carbination with air - and natural gas to destroy liquid hazardous waste. The use of oxygen al1a-lS higher tanperatures which inproves the kinetics of waste destruction, allows higher waste throughput and reiuces stack gas vo1une. Solids and sludges can be coin:inerated when the bJ.rners are used in conjunction with rotaIy kiln furnaces. 'It1e burner is capable of achieving temperatures up to 45000F am should be effective··in destroying wastes which r~ high tEfll)eratures for destruction (e.g., halogenated organics) or have low beating values (snaIl cmomts of organic constituents in an inert base). Liquid waste particle size nust be less than 1/32 in. and b1erxiing nay be required "' ... ',' J : \:', ~::'~,~'L" to reduce viscosity. . "_' .. ,.:. • ': : ",' I . ' , '\ \ ~ :..;~~. ~,:~ ,_ ,,' ~ _ • • • .. , ,'". , ' " "A SITE daoonStration of this rumer is being planned at the EPA " ,c. CcDbustion Research Facility in Jefferson, Arkansas. In-Situ Stabilization. A SITE dem:mstration is being planned to evaluate tile in-sib! stabilization and solidification of soils contamina. ted with PCBs. The teclmo1ogy enploye:i will be a chemical fixation , piOcess' developed by International Waste Technologies which borxis organic and inorganic CC1t(X)lndS in "macro IlDlecules" which are resistant to acids and naturally-existing deteriorating factors. After a test program to characterize the stabilized prcrlucts, special drilling equipyent developed in Japan will be used to inject and blem the stabilization rredia into the contaminated soils. Perrceability, density, and leaching tests will be conducted. ' -- Biological Degradation of Organic Contaminants. Biodegradation of organic contaminants in sludges and soils using proprietaIy, naturallyoccurring microorganisms developed by Detax IIXiustries, Inc., will be evaluated in another SITE datonstration. Detax has adapted microorganisms to biodegrade PCBs, ~Ps, creosote, oils, phenolics, and PAHs. Particular naturally-cccurring microorganisms are cultivated for accelerated growth and applied to the contaminant which is rretabolized into carlxm dioxide, water, and cell protoplasm. ,. A test project was reviewed by EPA's Region VI where 500 !bs of PCBcontaminated sludges, soils, and water were bicxiegraded. PCB levels were reduced to 4 ppn and as a result, the process was approv-ed for use for the destruction of PCBs in the Region VI States. A SITE daronstration on PCB-contaminated soils and sludges and PAHcontaminated rrateriai fran a Superfund site is being planned. Sludge ExtraCtion. Another SITE project will evaluate technology to dewater and de-oil contaminated sludges and soils. The Basic Extraction Sludge Technology (B.E.S.T.) process developed by Resources COnservation Co. uses the universal miscibility properties of aliphatic amines to break down wastes into the distinct fractions of water, oil and organics, and dry solids.' The amine is recycled back into the process. The technology is applicable to pumpable wastes with solid particles less than 1/4 in. Heavy rretals are isolated by the process into the solids as nonleachable netaJ.lic hydroxides. 7 , , ~ .... , '", ... ! ... "; \ ... |