According to the approval notice, over 100 waste materials can currently be accepted and treated in the stationary mineral mixture plant.

Treatment is carried out with the aim of preparing these waste materials for backfilling, road construction, as a mineral landfill or sealing material, as a certified mineral mixture and for use in accordance with the Soil Protection Ordinance. Slag, powdery and liquid/pasty waste materials can be used for this purpose.

In the mineral mix plant, river and port sludge, concrete sludge, sludge from waste water treatment plants, sludge from boiler cleaning, etc. are first dewatered in 3 sedimentation tanks and then solidified in a mixer by adding mineral substances and binding agents.

The mineral mixtures produced meet the highest quality requirements, have excellent solidification properties and high stability.