DEVICE AND METHOD FOR THE IN-SITU REMOVAL OF POLLUTION FROM WATER TABLES

摘要

The invention relates to a method for removing pollution from ground water containing heavy metals, hydrocarbons and/or other pollutants. The method consists of: using a drainage column extending at least from the surface to a level submerged in the ground water; passing the water through a filtration system (10) inserted into the drainage column; establishing a closed-circuit circulation of the ground water going essentially from the surface toward the submerged level in the drainage column and from the submerged level toward the surface and outside said column while draining the pollutants in the underground environment toward the drainage column.