The soil air extraction method is suitable for use in applications where volatile substances only are involved.
The basic principle of this procedure is the extraction of contaminated soil air from the water-unsaturated zone of a polluted ground area by means of suitably dimensioned well and suction systems.
By continually venting the ground, a negative pressure is created, that leads – if certain pressure and concentration levels are present – to a mobilisation of evident gaseous pollutants, which subsequently can be eliminated from the extracted volume flow by exhaust air cleaning.
Apart from the efficient elimination of the pollutant, the uncontrolled discharge of highly volatile contaminants is effectively prevented and the immediate protection of people and environment is thus achieved.
Bau und Umwelttechnik GmbH
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