B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
61/2.1, 61/2.5
B65G 5/00 (2006.01) B09B 1/00 (2006.01) G21F 9/24 (2006.01)
Patent
CA 1312208
A B S T R A C T A method of geologically confining toxic industrial waste, the method consisting in: using a cavity (1) previously leached from a mass of rock salt (2), said cavity being initially filled with brine (5); incorporating said waste in a pumpable waste-containing mixture (10) of density greater than the density of said brine and suitable for setting once put into place; inserting a predetermined quantity of a buffer liquid (7) into the bottom of said cavity by means of a dip tube (8) running down a well (4) in communication with the surface (3), the buffer liquid being immiscible both with said brine and with said waste-containing mixture, the density of the buffer liquid lying between the density of said brine and the density of said waste-containing mixture, and the buffer liquid including one or more halogen-containing solvents; inserting said waste-containing mixture into said cavity by means of said dip tube while the bottom end of said dip tube is maintained within said previously inserted buffer liquid; and removing said brine at the surface as it is displaced by said waste-containing mixture being inserted into said cavity.
585645
Boulanger Alain
Esys S.a.
Geostock Sarl
Swabey Ogilvy Renault
LandOfFree
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