Greensoils first project in Switserland is located in St. Ursanne on a Cr6+ contaminated site. This project is started in Q4 by additional pre-remedial investigation in order to finetune the remedial concept based on excavation and/ or immobilization of Cr6+ to Cr3+ by in situ anaerobic bioremediation. remedial works are planned to start in 2018.
Specifications
| Location | St. Ursanne, Switzerland |
| Client | Confidential (multinational) |
| Duration | Q4 2017 - Q4 2019 |
| Contract | Time and expenses |
| Contamination | Cr6+ |
| Techniques | Excavation or immobilization by in situ anaerobic bioremediation |
| Installation |
Anaerobic groundwater recirculation unit DehaloGS dosing system |
In numbers
| Project value | > 400.000 € | |||||||||
| Soil volume | Excavation | |||||||||
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Concentration in soil in water |
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| Number of wells |
75 injection and extraction wells 100 biosparging wells |
Used techniques
Soil treatment: excavation & ex situ soil treatment
In-situ: anaerobic biodegradation & immobilization
Treatment system: conventional groundwater treatment
Contamination: PAHs and heavy metals
Gallery
