Abstract: A medical waste disposal system is provided for disposing of biologically contaminated waste material situated inside a rigid, form-stable container. The disposal system includes a processing unit for shredding the waste material into a shredded mass and for transporting the shredded mass into a disintegrator. The disintegrator mixes the shredded mass with a liquid disinfectant solution to disinfect the shredded mass and disintegrates the shredded mass into an unrecognizable particulate waste material.

Abstract: A system for disposing of large amounts of infectious hospital waste includes a generally sealed enclosure containing an apparatus for delivery, disintegration, and decontamination of waste materials. A dual conveyor arrangement provides a positive delivery of large waste containers to be disposed to a disintegrator while preventing material from being thrown from the disintegrator. The disintegrator comprises two, large, counter-rotating hammermills capable of effectively disintegrating articles of substantial size. The system enclosure is maintained at a negative pressure and adapted to prevent escape of airborne contamination from the system. A variety of protective features is also incorporated into the system to clear the disintegrator in cases of overload, to avoid power surges upon system start-up, and to effect an orderly shutdown of the system.

Abstract: A system is provided having a generally sealed cabinet and separator. A blower is provided in the sealed cabinet to provide a negative pressure within the cabinet. A waste entrance is provided in the cabinet which provides a sealed, rotatable input for the introduction of hospital waste to the system. In the system, the input rotates upon operation of a switch to direct solid waste to a disintegrator, such as a hammermill, wiht a flow of disinfectant fluid. Upon disintegration, the waste particles and disinfectant fluid are carried to the separator which is sealed with the cabinet. The solid waste is separated from the decontaminant fluid which is then directed to a public sewer.

Abstract: A waste disposal system for treating and disposing of infectious waste articles in a substantially controlled, closed, aseptic environment and for converting such infectious waste articles into a safely disposable, non-infectious non-toxic residue of solid waste independent from disinfecting liquid waste. A waste delivery conveyor transfers waste articles from an input region to preliminary waste processing apparata for preliminarily fragmenting the waste for further treatment by the system. Disinfectant spray is deposited on the waste as it enters the preliminary waste processing apparatus with the fragments resulting therefrom, together with the disinfectant liquid, being transferred to rotary hammermill elements to convert the fragment disinfectant solution to a solution of fine waste particles and disinfectant solution. Liquid solid particle separator apparata then separates the solid waste particles from the liquid disinfectant for independent evacuation of same.