• Remediation of Diesel Contaminated Soil Using Flowing Subcritical Water
  • Li, Guang-Chun;Jung, Sun-Kook;Chung, Seon-Yong;Jo, Young-Tae;Park, Jeong-Hun;
  • Dept. of Environmental Engineering, Chonnam National University;ENPLUS Co., Ltd;Dept. of Environmental Engineering, Chonnam National University;Dept. of Environmental Engineering, Chonnam National University;Dept. of Environmental Engineering, Chonnam National University;
  • 흐름식 아임계수에 의한 경유오염토양의 정화
  • 이광춘;정선국;정선용;조영태;박정훈;
  • 전남대학교 환경공학과;(주)이엔플러스;전남대학교 환경공학과;전남대학교 환경공학과;전남대학교 환경공학과;
Abstract
The experimental studies for remediation of diesel contaminated soils were performed using subcritical water in laboratory scale. Contaminated soils from industrial area and artificially contaminated soils were utilized for soil remediation. Experimental system was composed for subcritical water to flow upward through the soil packed column for extracting contaminants. 10 g of contaminated soil was packed into the column and water flow rate was 2 mL/min. To evaluate the effects of temperature, pressure and treatment time on the removal efficiency, temperature was changed from 100$^{\circ}C$ to 350$^{\circ}C$, pressure from 50 bar to 220 bar and treatment time at the predetermined temperature from 0 min to 120 min. The purification efficiency increased as temperature increased. However, the effect of pressure and treatment time was low. Temperature 250$^{\circ}C$, pressure 50 bar and treatment time 30 min were selected for optimal operating condition for this study.

Keywords: Remediation;Diesel contaminated soils;Extraction;Optimal operating conditions;

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