• Evaluation of the Large Scale Petroleum-Contaminated Site for the Remediation of Landfarming
  • Ju, Weon-Ha;Choi, Sang-Il;Kim, Jong-Min;Kim, Bo-Kyung;Kim, Sung-Gyoo;Park, Sang-Hean;
  • Department of Soil and Groundwater, Environmental Management Corporation;Department of Environmental Engineering, Kwangwoon University;Department of Environmental Engineering, Kwangwoon University;Department of Environmental Engineering, Kwangwoon University;Department of Environmental Engineering, Kwangwoon University;Department of Environmental Engineering, Kwangwoon University;
  • 대규모 유류오염부지에 적용된 토양경작법의 정화효율 평가
  • 주원하;최상일;김종민;김보경;김성규;박상헌;
  • 환경관리공단 토양지하수사업처;광운대학교 환경공학과;광운대학교 환경공학과;광운대학교 환경공학과;광운대학교 환경공학과;광운대학교 환경공학과;
Abstract
The remediation efficiency for a large scale petroleum-contaminated site was evaluated by using the Engineered Land-farming system which was consists of the following parameters; moisture & nutrient injector data, blower system, HDPE sheet and sump system. To enhance the degradation ability in the early stage, main nutrients such as nitrogen (N) and phosphorus (P) were adjusted for the site condition. As a result of the periodic tilling process, the concentration of contaminated soil was decreased to 348 mg/kg, which was lower than 500 mg/kg (regal standards) while satisfying remediation Efficiency of 82% (the maximum concentration of 1,893 mg/kg). The appropriate temperature range for an active operation was investigated between $28.9{\sim}35.6^{\circ}C$. For the contaminated soils having different initial concentration, the TPH (Total Petroleum Hydrocarbons) concentration was decreased evenly along with the CFU (Colony Forming Unit), moisture content and contaminant concentration after 38days of gratifying the legal standards of under 500 mg/kg.

대규모 유류오염 정화부지에 대해 수분 및 영양분 공급장치, 송풍장치, 바닥 차수 및 집수 장치등의 공학적 토양경작 시설을 적용하여 복원효율을 평가하였다. 복원초기 미생물의 생분해활성도 증가를 위해 영양제인 질소(N), 인(P) 등 주요영향인자들을 부지 환경에 맞도록 보정하여 주기적인 틸링 작업을 수행한 결과, 오염토양의 농도가 가장 높은 1,893 mg/kg일 때의 정화효율이 82%로 토양오염우려 "가" 지역 기준 500 mg/kg 이하인 348 mg/kg으로 감소하였다. 가장 원활하게 활동할 수 있는 온도 범위는 $28.9{\sim}35.6^{\circ}C$로 측정되었다. 또한 초기 농도가 서로 다른 오염토양의 TPH 농도가 법적기준 농도인 500 mg/kg 이하를 만족하는 38일 경과 후의 미생물 균수, 수분함량, 오염토양의 농도가 큰 변화 없이 일정하게 감소하였다.

Keywords: Landfarming;TPH;Contaminated Soil;

Keywords: 토양경작;석유계총탄화수소;오염토양;

This Article

  • 2009; 14(4): 15-22

    Published on Aug 31, 2009

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