NOVELTY - A bio-catalytic oxidation reactor has feed assemblies (29,39) located at both ends of elongated cylindrical vessel (11). Hubs (31,41) protrude through cylindrical collars (28,36) of chutes (21,34) mounted on annular end plates (15,16) which are adjacent to each chute. An elongated tubular header (46) is supported on two chutes positioned at both ends of the vessel.    USE - For continuous remediation of organic wastes such as animal waste, vegetable waste, carbonaceous and nitrogenous materials and minerals.    ADVANTAGE - Requires limited physical labor as the loading chute acts as a conveyor which has spiral blade in it. Enhances maximum rate of decay as there is provision of oxygen supply and temperature sensor for oxidation at optimum rate. Improves efficiency in either a batch or continuous flow mode as the vessel is rotated to tumble mixture to avoid unnecessary disruption of the decomposition process. Removes offensive odors and makes waste pathogen-free to ensure a proper environment as there is a bio-filter with an exhaust fan.    DETAILED DESCRIPTION - The elongated cylindrical vessel is positioned between a loading chute and a discharge chute and is supported for rotation about its longitudinal axis on a pair of rollers (12,13). Two circular openings are located centrally to the annular end plates. Rubber seals are provided between the cylindrical collar and the adjacent end plate. Each feed assembly has spiral blades (30,40) mounted on a hollow hub which is telescopic over header. Oxygen supplier (58) is connected to header which has a series of projection tubes (49). A programmable logic controller (61) is connected to temperature sensor (52) which is mounted on the header, and oxygen supplier for injecting oxygen into vessel corresponding to temperatures within vessel based on predetermined program. An exhaust fan (56) and a bio-filter (57) are connected to pipe (55) which is extended axially and vertically projected from the header for removing exhaust gases from the vessel according to the controller program. A semi-cylindrical shell (37) is protruded into the interior of the vessel below the feed assembly and a semi-cylindrical shield is supported slidably on the shell above the feed assembly. A circular plate (38) is secured to the header adjacent to the shell and an operating handle is attached to the shield which is extended to the exterior of the discharge chute. The controller is connected to a motor for rotating the vessel. Two paddles (62) which are extended radially, are mounted on the interior of the vessel.    DESCRIPTION OF DRAWING(S) - The figure shows a sectional side view of a bio-catalytic oxidation reactor.    Cylindrical vessel; (11)    Rollers; (12,13)    Annular end plates; (15,16)    Circular openings; (17,18)    Loading and discharge chutes; (21,34)    Cylindrical collars; (28,36)    Feed assemblies; (29,39)    Spiral blades; (30,40)    Hubs; (31,41)    Semi-cylindrical shell; (37)    Circular plate; (38)    Projection tube; (49)    Temperature sensor; (52)    Pipe; (55)    Exhaust fan; (56)    Oxygen supplier; (58)    Programmable logic controller; (61)    Paddle; (62)    Rubber seals (63,64)