Process and barrier for the containment of wastes

Details Process and barrier for the containment of wastes Process and barrier for the containment of wastes

E - Fixed Constructions

21

F

61/2.1

E21F 17/16 (2006.01) B09B 1/00 (2006.01) E02D 31/00 (2006.01)

Patent

CA 2028251

A virtually impermeable barrier around a leachable waste mass can be formed by providing at least one layer of a porous material, e.g. sand, around the waste mass, and disposing two layers of interreactive substances so that their interface is within the porous layer. Through diffusion towards the interface, the substances keep reacting until an impermeable barrier is formed therebetween. An excess of both substances may be provided to ensure self-healing of the barrier should it be disrupted.

Barrière virtuellement imperméable autour d'une masse de déchets lixiviables pouvant être constituée en plaçant au moins une couche de matériau poreux, tel le sable, autour de la masse de déchets, et en plaçant deux couches de substances réagissant entre elles pour que leur interface se trouve à l'intérieur de la couche poreuse. Pendant la diffusion vers l'interface, les substances continuent de réagir jusqu'à ce qu'une barrière imperméable soit formée entre elles. Une quantité des deux substances plus grande que nécessaire peut être utilisée de façon à assurer l'autorégénération de la barrière en cas de rupture de celle-ci.

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