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Remediation of the Diesel Contaminated Soils Using Thermally Enhanced Soil Vapor Extraction Process with Microwave Heating  

김종운 (한국외국어대학교 환경학과)
박갑성 (한국외국어대학교 환경학과)
Publication Information
Journal of Soil and Groundwater Environment / v.9, no.1, 2004 , pp. 39-46 More about this Journal
Abstract
Removal efficiencies for diesel fuel and diesel hydrocarbons ($C_10$$C_22$) using microwave-enhanced SVE process were evaluated with dry and moist soil, respectively. Diesel removal rates of microwave-enhanced SVE process were 7 times for dry soil and 1580 times for moist soil as great as those of the SVE process without microwave heating. High dielectric property of water contents may accelerate the absorption of microwave energy into soil and thus vaporized the diesel fuel components drastically. The diesel removals were 67.7∼78.4% for $C_10$ and $C_12$, and 0∼18.5% for $C_14$$C_22$ for dry and moist soil with SVE process only. On the other hand, dry soil with microwave-enhanced SVE process showed 89.3∼99.4% removal for $C_10$ to and $C_12$ and 35.6∼67.0% for hydrocarbons over $C_14$. All hydrocarbons ($C_10$$C_22$) studied were significantly removed (93.6∼99.8%) for moist soil with microwave-enhanced SVE process.
Keywords
Microwave heating; Soil Vapor Extraction (SVE); Hydrocarbon; Diesel; Soil remediation;
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