Patent ID: 6391271
Filing Date: 2002-05-21
Classification: A62D

Abstract:
A process for the treatment of waste containing asbestos, originating from a site generating such waste, including the steps of:a. transferring the waste containing asbestos from the generating site to the interior of a movable treatment reactor, said step being carried out within said site; b. moving the treatment reactor from the interior of the site to a location which is exterior of the site; c. treating the waste containing asbestos with a basic digestion solution in said movable treatment reactor to disassociate the fibres containing asbestos from the remainder of the waste; d. separting the waste treated in step c into a solid phase, which contains the disassociated fibres and which is of pasty consistency, and a liquid phase; e. transferring at least the solid phase including the disassociated asbestos fibres to a second reactor; and f. adding a basic digestion solution to said second reaction and mixing said basic digestion solution with said solid phase containing disassociated asbestos fibres until a reaction product is obtained which is of pasty consistency and substantiaolly without asbestos fibres; wherein steps a-f occur in a circuit without any outward release of asbestos fibres and any product resulting from the circuit is substantially devoid of any asbestos fibre.