It is possible to remove contaminants such as CHC or BTEX from the subsurface with a relatively low energy consumption and within few months.

The following methods are employed for the heating up of the soil:

Heating of the soil by conductive heat input

The underground is heated up by electrically-operated heat sources which have a conductive effect. This method makes it also possible to heat up cohesive soil layers.

Heating up by steam injection

The injection of a steam/air mixture heats up the underground in a mainly convective way.

The heating causes the transition of the contaminants into their gaseous form so that these can be removed from the soil by the selective employment of soil vapour extraction >> or dual or triple phase extraction >>.

Plants for Thermal Soil Treatment

We supply and operate plants for extraction, cooling and conditioning. Before the soil vapour is discharged into the atmosphere, the contaminant-laden soil vapour is cleaned by activated carbon filters >> or our MINICAT >> gereinigt.

The mixture of water and contaminants which is produced together with the soil vapour (phase) is separated and receives further treatment or is disposed of. Depending on its composition,
we use our phase separators, stripping systems, horizontal stripping systems or activated carbon filters for water treatment >>.

During the remediation measure, our system for the recording of operating data protocols the process of the heating of the soil and the remediation.