極超短波와 高溫發熱體를 利用한 連續식 工程의 油類汚染土壤 處理에 관한 硏究
A Study on Treatment of Oil-Contaminated Soil using Continuous Process with High Temperature Heating Element and Microwave
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초록
마이크로파와 고온발열체의 연속식 융합공정을 이용하여 수분변화와 전력변화 그리고 온도에 따라 유류오염토양의 분해 및 제거 특성을 연구하였다. 긴 탄소고리(C18-C50)를 가진 윤활유 계열의 오염물질은 온도변화에 따라 TPH 처리량이 6 kW, 700일 때 85.2%로 처리시간 40분에 1788 mg/kg로 제거되었다. 경유, 휘발유 오염토양의 경우 6 kW, 500일 때 처리시간 20분에 567 mg/kg로, 98.4%의 처리율을 보였다. 난분해성 유류오염물질의 경우 마이크로파 6 kW, 700, 30분안 처리를 한 경우 토양오염우려기준 3지역의 2000 mg/kg에 도달하는 것으로 나타났고, 이때 처리비용은 8,173원/ton으로 나타났다.
Abstract
This study has been investigated for characteristic of removal on the effect of changes in soil moisture, microwave power, and temperature through the decomposition of oil-contaminated soil under high temperature conditions with high temperature heating elements and microwave. A lubricating oil having long carbocyclic(C18-C50) commonly known as a non-resolvable material was treated and the efficient for removal of TPH(Total Petroleum Hydrocarbon) obtained 85.2% at 6 kW and 700℃ and thus the contaminant was found to be removed to 1788 mg/kg for 40 minutes. In case of contaminated soil by light oil and gasoline, the amount of removal was achieved with 567 mg/kg at 6 kW, 500 for 20 minutes that corresponds to reach 98.4% of treatment efficient. In addition, non-resolvable materials contaminated by oil reached TPH concentration on 2,000 mg/kg of worrisome level of soil contamination in the 3-zone at 6kW, 700℃, and 30 minutes, and processing cost at this time was about 8,173 won per ton.