SITE DESCRIPTION
Treated Volume | 217 m³ of contaminated soil |
Thermal technology | Ex-Situ Treatment (Applied Onsite) |
Main contaminant | Hydrocarbons |
Site challenges | The treatment was carried out inside a hangar with limited access around the pile. The contaminated soils came from several sites and had different properties, requiring preliminary stability tests to determine the appropriate moisture content and consistency before pile construction. |
Project Timeline | 2017 |
SOLUTION
Treatment Method | Ex-situ thermal desorption through an engineered soil pile installed inside an industrial hangar. |
Treatment program |
ESTD facility was installed over an area of approximately 250 m² and included 9 diesel - fired burners |
Contaminated Vapors Management | Contaminants extracted from the soil were recovered through two knock-out units installed within the vapour treatment system. |
Process control | Eight hot soil samples were collected from four treatment areas at two different depths. The samples were analysed in the Xinxin laboratory using infrared technology. |
RESULTS
✅ More than 70% of the contaminants were extracted from the soil. |
✅ The oil content was substantially reduced compared with the initial contamination level of up to 150,000 mg/kg. |
✅ Approximately 30.4 m³ of contaminated liquids and condensates were recovered during treatment. |
