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 |
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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