Journal of Soil and Groundwater Environment (한국지하수토양환경학회지:지하수토양환경)

Korean Society of Soil and Groundwater Environment (한국지하수토양환경학회)
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The Characteristics of Shallow Groundwater in Petroleum Contaminated Site and the Assessment of Efficiency of Biopile by Off-gas Analysis

유류오염지역의 지하수 수질특성과 토양가스 분석을 통한 바이오파일의 효율평가

  • Cho, Chang-Hwan (Environmental Site Assessment & Remediation Team, Environ. Management Corp.) ;
  • Sung, Ki-June (Department of Ecological Engineering, Pukyong National University)
  • 조장환 (한국환경공단 환경조사정화팀) ;
  • 성기준 (부경대학교 생태공학과)
  • Received : 2013.02.14
  • Accepted : 2013.04.25
  • Published : 2013.04.30
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Abstract

The objectives of this study were to identify the characteristics of shallow groundwater from the oil-contaminated site for a long period and to evaluate the applicability of biopile technology to treat the soil excavated from it. The eight monitoring wells were installed in the contaminated site and pH, Electrical Conductivity (EC), Dissolved Oxygen (DO), Oxidation Reduction Potential (ORP), Temperature and the concentrations of major ions and pollutants were measured. The VOCs in soil gas were monitored during biopile operation and TPH concentration was analyzed at the termination of the experiment. The pH was 6.62 considered subacid and EC was 886.19 ${\mu}S/cm$. DO was measured to be 2.06 mg/L showing the similar characteristic of deep groundwater. ORP was 119.02 mV indicating oxidation state. The temperature of groundwater was measured to be $16.97^{\circ}C$. The piper diagram showed that groundwater was classified as Ca-$HCO_3$ type considered deep groundwater. The ground water concentration for TPH, Benzene, Toluene, Xylene of the first round was slightly higher than that of the second round. The concentration of carbon dioxide of soil gas was increased to 1.3% and the concentration of VOCs was completely eliminated after the 40 days. The TPH concentration showed 98% remediation efficiency after the 90 days biopile operation.

Keywords

References

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