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United States EPA/5400MR'93/527 <br /> Environmental Protection Novem^ ` 1893 <br /> Ag% <br /> NM Pk <br /> SUPERFUND INNOVATIVE <br /> TECHNOLOGY EVALUATION <br /> Demonstration Bulletin <br /> m/ <br /> Augmented In ___ ___-_''__- -'-' -- -_'_ti_- ' _-___:xM <br /> B10-REM, Ina <br /> Technology Description: 810-REM*s technology is an in-sku <br /> aviation fuels, and other <br /> subsurface bioremediation process for the treatment of hydrocar- carbons,pentachlorophonols,trichloroethens,and dichloroethene. <br /> bon contaminated soils. 61`0-REM uses a proprietary product, BIO-REM c1aima that ever two hundred hydrocarbon compounds <br /> 'H-10", of microaerophilic microorganisms and micronutrients, in have been identified as being amenable to their treatment pro- <br /> conjuric-tion with minor components of surface tension depres- cess. <br /> sards and penetrants used to enhance introduction.into the pore <br /> spaces of the soil. The H-10 slurry does not contain hydrogen Demonstration Activities:The BIO-REM in situ process was <br /> peroxide or any other oxygenating compounds. The BIO-REM tested at the former Williams <br /> pnucoao was demonstrated on JP-4 (jet fual hydrocarbons) con- Force Base naarPhoeobx� Arizona. Soils authe 0'9 oorm site are' <br /> taminotedsoils agWilliams Air Force Base,Arizona between May contaminated with hydmearbonsdehvmd from JP-4 jet fuel as a <br /> 1gg2and June 1993' mmwb of leaking undergroundand pipelines. The <br /> tanks and pipelines were removed, however, significant hydm- <br /> 8|C-REk4claims that the micnzaerophi|kzbacteria require minimal carbon contamination exists in the soil from approximately four <br /> :)zygen to survive and utilize hydrocarbonsas electron acceptors. feet below !and au ��* (BLS) the gnouo����or �|a at ap- <br /> The,efone, subsurface oxygen concentration is not a |imitinfac' proximately 225feet below surface. <br /> tor since the microorganisms can exist and propagate under very <br /> low oxygen tensions. They state that no additional sources 8/0-REK4. through asub-contract arrangement, was retained by <br /> oxygen nor additional nutrient treatments are necessary during the U.S. Army Corps cf Engineers to remediate soil atthe site <br /> the course cf the remediation. from four feet The EPA <br /> SITE Demonstration Programinvited to participate /n the <br /> The H'10slurry is prepared on-site and placed demnnnationcd8|0-R 'obkoemediationpnocema <br /> directly into borings and/or wells previously drilled into the con- <br /> taminant plume. BIO-REM claimed that their in situ process would nyduom organic <br /> contaminant levels in soils (4 to 25feet BLS) from the LiquidAccording to B|D-REM, implementation of the technology con- Fuels Storage Area to less than the following <br /> project-specific <br /> oistsof the following steps: clean-up levels: <br /> 1' Definition and characterization of the contaminant plume CONTAMINANT CLEAN-UP LEVELS <br /> including the geology, hydgradient ofthe <br /> site, and the dimensions cfthe contaminant plume. TRPH ~ 1 <br /> ' <br /> Benzene 0.130 <br /> ~ <br /> Toluene - ~ <br /> 2. Determinationof �� � �� <br /> clays may also require" lancing." °Total Recoverable Petroleum Hydrocarbons <br />