In order to prevent the spread of mercury or chrome 6 in the groundwater, we reduce and immobilise the metals in the soil.
These processes can be performed biologically or chemically:
- Biologically by reduction of the soil matrix and sulphide formation.
- Chemically by adding sulphide complexes to the soil.
In cooperation with Ghent Dredging, for OVAM in Belgium a pilot project was started to evaluate both techniques on a practical scale.