Anthropogenic contaminations of excavated material

Construction activities may contaminate excavated material with residual explosive, concrete, hydraulic fluids or diesel. These contaminations are usually low since the concentrations of these potentially hazardous substances normally remain beneath the legal thresholds.

However, these substances add up in the sludge of the gravel plant during the processing of the raw material. As a consequence, the pressed slurry (filter cakes) is often contaminated.

Unappropriate substances can also contaminate jetting excavation material so that special measures have to be defined for their further use or disposal.

Depending on the quantity and the nature of the contamination, there are numerous technical and chemical methods to eliminate problematic substances.

Geogenic substances in excavated material

Excavated materials can also contain natural substances that are harmfull for the environment and/ or health such as radioactive and asbestos minerals.

B+ G identifies potential contaminations of your excavated material and helps you find the best solutions.