Aisch (Namur) concerns the remediation of a deep (>11 mbgl) BTEX contamination in the unsaturated zone at a large high way petrol station. Significant residual contamination is still present after shallow excavation and horizontals SVE was conducted in the past. After succesfull pilot testing, a vertical SVE system and innovative biological air abatement system was designed by Greensoil to effectively treat the 12T of residual contamination.
Specifications
| Location | Aisch, Belgium |
| Client | Kuwait Petroleum |
| Duration | Q1 2017 - Q1 2020 |
| Contract | Time and expenses |
| Contamination | Mineral oils and BTEX |
| Techniques | Pump and treat; soil vapor extraction |
| Installation |
ATEX blower unit (500m³/hr) Biological air abatement system (compost filter) GAC filtration (polishing step) Biological groundwater treatment system (10m³/h) |
In numbers
| Project value | > 500.000 € | |||||||||
| Soil volume | ||||||||||
|
Concentration in soil in water |
|
|||||||||
| Number of wells |
46 soil vapor extraction wells 6 deepwells |
Used techniques
In-situ: soil vapour extraction & pump and treat
Treatment system: biological groundwater treatment & biological air abatement
Contamination: BTEX and mineral oils & MTBE
Gallery
