Cleaning contaminated ground comprises inserting a heating lance directly next to the vacuum level and bringing the ground air and ground to a higher temperature level by heat from the lance

摘要

Cleaning contaminated ground comprises inserting a heating lance (6) directly next to the vacuum level (8) and bringing the ground air and ground to a higher temperature level by heat from the lance. The phase equilibrium of the volatile pollutants is shifted between the gas and liquid phase to the gas phase. An Independent claim is also included for the apparatus for carrying out the decontamination process.