The Emission Characteristics of Pollutants from Thermal Desorption of Soil Contaminated by Transformer Oil

In order to reduce pollutant emission from substation fires into the soil environment, developing technology remove pollutants in after is necessary. Among remediation technologies, thermal desorption has been proven be an effective method. this paper, effects of temperature and atmosphere on releasing characteristics polluted by waste oil accident pool were examined. The results showed that when was 500 °C, a large number macromolecular organics decompose solid phase change long-chain alkanes acids under pure N2 atmosphere. When higher than °C further decomposed small molecular organics. addition, transformed CO2, SO2, NOx, CO 20% O2/N2 above °C.