APPLICATIONS

ALLU Soil Improvement System Treating Contaminated Sludge
Applications

CASE DETAILS

Country
Finland
Model
Complete ALLU Soil Improvement System
Material
Dredged, TBT contaminated sludge from the sea

Problem

The project was to extend the port of Vuosaari which involved the dredging out of TBT (tributyltin) contaminated sludge. The dredged material would then be used as construction material once stabilized.

Solution

The sludge was placed into four lagoons and was stabilized using three complete ALLU Soil Improvement Systems. The stabilized area was approximately 11 ha down to a depth of 6 m, with the total stabilized area being around 500 000 m3.

Benefit

As the dredged and stabilized material could be used once processed as a construction material, huge savings were made on natural resources. There was a reduced need for stones and crushed gravel to be bought and brought in, as well as the stabilization resulting in improved strength and load bearing capacity of the ground.

ALLU APPLICATIONS
Stabilising: Contaminated Sites Remediation: Coastal Facilities:

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