Successful Forfait remediation in Destelbergen

Published Oct. 31, 2025

After an extensive screening of available soil contamination files, Verhoeve signed a contract in 2017 to perform a forfait remediation in Destelbergen. In this type of contract, Verhoeve takes over the entire contamination problem from the client (from design to final delivery) in order to unburden the client as much as possible.

VOCI contamination in soil and groundwater.

This particular case involved VOCl contamination, both in soil and groundwater, spread over an area of approximately 6,000 m2 and to a depth of 13 m-mv. Initially, 2 shallow core zones were excavated. This was followed by deeper excavation (with formwork) to 6 m-mv. In total, about 2,900 tons of soil were removed. To be able to carry out the deep excavation dry, several deep wells were installed, including a downstream water treatment system of 50 m3/hour.

After the various excavations, a switch was made to stimulated biodegradation to further address the VOCl contamination in the groundwater. For this purpose, a total of 392 direct-push injections were carried out from 1m -mv to max 13 m-mv at the level of the different source zones and the plume zone. As a carbon source to stimulate the microorganisms, our in-house developed V-CS® was applied which was diluted 1:1 with water. A total of 155 m3 of injection solution was injected into the soil.

Redevelopment

After the remediation work was completed, the entire area was intensively sampled to monitor the evolution of the degradation. This was always found to be good so there was no need to carry out additional injections. In the meantime (from 2020), the plot was completely redeveloped. From the beginning, the remediation design was handled in such a way that soil remediation and redevelopment could go well together.

Contact

If you have any questions about this project, or if you would like to talk to us about a similar approach, please contact project manager Jonas Wittocx (+32(0)483270932 or j.wittocx@ver hoevemw.com) or project manager Wil Brabers (+32(0)473174269 or w.brabers@verhoevemw.com).