Method and apparatus for remediating contamined land

Details Method and apparatus for remediating contamined land Method and apparatus for remediating contamined land

B - Operations, Transporting

09

C

B09C 1/06 (2006.01) F23G 7/14 (2006.01)

Patent

CA 2632710

The invention relates to a method and apparatus for remediating land (10) that is contaminated by a combustible material (12), in particular, land contaminated with non- aqueous phase liquids (NAPLs). In an embodiment of the invention, a method for remediating land that is contaminated by a combustible material is disclosed which includes the steps of locating a subterranean volume (16) of combustible material such as a DNAPL (12) in land (10) to be remediated, and igniting the combustible material (12) to combust the material and thereby remediate the land (10). By monitoring combustion of the material, combustion may be optimised by, for example, supplying an oxidant or a combustion suppressant.

La présente invention concerne un procédé et un appareil pour décontaminer un sol qui est contaminé par un matériau combustible, en particulier, un sol contaminé par des liquides en phase non aqueuse (LPNA). Dans un mode de réalisation de l'invention, l'invention concerne un procédé pour décontaminer un sol qui est contaminé par un matériau combustible, lequel procédé comprend les étapes consistant à localiser un volume souterrain (16) de matériau combustible tel qu'un LPNA (12) dans le sol (10) devant être décontaminé, et mettre le feu au matériau combustible (12) de façon à brûler le matériau et de ce fait décontaminer le sol (10). Lors de la surveillance de la combustion du matériau, elle peut être optimisée, par exemple, en fournissant un oxydant ou un agent ignifuge.

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