Tailor-made refurbishment planning

Before any measures can be taken, a thorough analysis of the site is required. In this project, we combined traditional investigation methods – such as research into historical land use and the analysis of aerial photographs – with modern technologies to obtain a comprehensive picture of the contaminated site. The precise localisation of contamination sources and the creation of groundwater flow and transport models were essential for understanding the dynamics of the contamination.

Building on this, we developed a remediation concept that combines various approaches. An important initial measure, for example, is the targeted skimming of tar oil to prevent the sources of contamination from spreading. We also rely on innovative methods such as natural attenuation (NA).

Advanced remediation methods rely on the microbial degradation of pollutants. Our research in this area has shown that targeted stimulation of natural processes in groundwater can significantly reduce pollutant levels. Methods such as Enhanced Natural Attenuation (ENA) and technologies such as air sparging support these degradation processes by introducing oxygen, thereby promoting the activity of microorganisms.

Through regular monitoring, we ensure that the measures remain effective and can be flexibly adapted where necessary.

A long-term responsibility

Whilst the site itself has already been remediated and successfully put to new use at ground level, the ongoing protection of the groundwater remains a key priority. Our measures are therefore designed not only to resolve immediate problems, but also to address the remaining contamination in a sustainable manner over the coming years.

This requires close cooperation between companies, public authorities and consultants, as well as the use of modern technologies and careful planning.