An incinerator (10) for the disposal of biohazardous waste has a sealed enclosure (12) defining a combustion chamber (18) with upper, first and second level intermediate, and lower portions (19, 20, 21, 22). The upper chamber portion (19) is an inclined chute (23) into which a plurality of cylindrical metal containers (25) of waste are loaded. A pair of laterally-spaced drums (41, 42) is disposed in the first level intermediate portion (20), at a constriction (27) which stops further descent down the chute (23) of the leading container (23a). Banks of first-level TIG torches (30) are arranged to arc to the drums (41, 42), providing heat for 'cooking' waste in the unopened containers (25) and for opening the leading container (25a) and incandescently acting on solid materials spilled therefrom. Second-level drums (67, 68) and associated second-level TIG torches (75) are also provided to further act on the waste.
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