SITE DESCRIPTION
Treated Volume | 620 m³ of contaminated soil (992 T) |
Thermal technology | ESTD, on-pile thermal treatment |
Main contaminant | PAH (up to 50,000) |
Site challenges | Tarry contamination near a former railway station; site surrounded by a residential area and a country road |
| Project Timeline | 2011 |
SOLUTION
Treatment Method | Excavated soil treated in an on-site ESTD pile, placed in successive layers with heating and return tubes |
Treatment program | 15 heating tubes with individual burners, 5 return tubes, target temperature 200°C, 37 days of heating |
Contaminated Vapors Management | Contaminants extracted by forced gas circulation; extracted vapours combusted through the heating system |
Process control |
32 thermocouples, continuous gas analysis (CO, CxHy, CO₂, O₂, NOx) and remotely accessible monitoring data
|
RESULTS
✅ 620 m³ (992 T) of PAH-contaminated soil treated. |
✅ 37 days of heating, with a target treatment temperature of 200°C. |
✅ 5-week treatment campaign completed, followed by sampling and analysis. |
