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0 • D201 SOILS REMEDIATION UNIT GENERAL CAPABILITIES The Recovery Specialists' D201 Soils Remediation Unit (SRU) is designed to cost effectively remediate solvent and fuel contaminated soils. The SRU is a heat transfer system designed to agitate and transport soil through the system while simultaneously heating the soil to volatilize the organic contaminants. The soil is heated to 300-500 degrees Fahrenheit by passing a non-hazardous heat transfer fluid through the flights, shaft and jacket of ar specially fabricated multi-screw, agitator system. The heat transfer fluid is continuously circulated and heated in a closed loop heater assembly designed specifically for the SRU. The heater may be fueled by either natural gas, propane or fuel oil . The transfer fluid is a blend of natural oils and is completely non-toxic. Vapors generated by the SRU are processed by a combination of scrubbers, separators and condensers. The vapor processing system permits compliant operation under the most stringent air quality regulations. Recovered hydrocarbons are returned to the generator or may be handled as commercially recyclable waste. The SRU is mounted on one 40 ' long semi-trailer. The unit is designed for assembly and start-up within 24 hours after arrival on site. The system is supplied with a variety of solids processing and handling equipment for any necessary material preparation. SRU performance, i .e. throughput and treated soil quality, is governed by soil moisture, molecular weight of the hydrocarbon contaminant, operating temperature and soil characteristics. Typically, the SRU will process four to six tons of contaminated soil per hour. The treated soil readily contains less than 100 ppm TPH as determined by EPA Method 8015. Depending upon the above defined performance parameters, lower clean-up levels may be achievable.