Patent ID: 6926863
Filing Date: 2005-08-09
Classification: A61L

Abstract:
1. A method for the treatment of contaminated material comprising feeding said contaminated material via an input unit to a conveyor system extending through a treatment chamber which slants upward in the conveyor transport direction and which comprises first treatment zone adjacent the lower end of the treatment chamber and second treatment zone extending from the first treatment zone to the upper end of the treatment chamber, and wherein said conveyor system comprises a screw conveyor and said screw conveyor has a bearing at only one end and rests on slide runners, heating and treating the contaminated materials in said treatment chamber, and discharging the treated materials via a discharge element, wherein said contaminated material is moistened in a liquid reservoir in said first treatment zone by liquid present in the contaminated material or water added from outside the treatment chamber, the liquid in said liquid reservoir being to a temperature lower than the boiling point of water, and thereafter heating the contaminated material in said second treatment zone at least partially to a temperature above the boiling point of water, wherein the input unit and discharge element are closed off, in order to build up steam pressure to disinfect the contaminated material.