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Institute of Hydraulic Engineering

Research: VEGAS - Research Facility for Subsurface Remediation

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Thermally enhanced in situ remediation of a BTEX contamination at a former gas works site
Project manager:Dr.-Ing. Hans-Peter Koschitzky, AD
Research assistants:Dr.-Ing. Reinhard Schmidt
Dr.-Ing. Christoph Betz
Dr.-Ing. Arne Färber
Duration:1.4.1997 - 30.6.1999
Funding:Züblin Umwelttechnik GmbH, Stuttgart

This project is part of the research area:
In-Situ Remediation Technologies

Publications: Link


The unsatured zone below the tanking area of a former gas works was contaminated with BTEX. This contamination was remediated with the innovative thermally enhanced soil vapour extraction technology TUBA by injecting steam into the subsurface and vaporizing the contaminants.

The overall remediation costs amounted to 264.000 DM or 242 DM per ton of soil treated.