Patent ID: 7144550

Claim:
A method for processing and chemically disinfecting infectious waste material, comprising the steps of: transporting a wheeled enclosure containing lift and dumping means, a hopper, grinding and grating means, immersion vat means, conveyor means, suction and filter means, an electrical generator driven by a petroleum fuel engine, a source of chemical disinfectant, and a source of fresh water, to a location where infectious waste material is stored; said petroleum fuel engine having an exhaust connected in communication with said grinding and grating means, said immersion vat means, and said conveyor means; placing said infectious waste material into a cart, placing said cart on said lift and dumping means, and dumping said infectious waste material into said hopper; feeding said infectious waste material from said hopper to said grinding and grating means and grinding, grating, and macerating it into waste particles of a small size range of confetti-like material which is unrecognizable as to the source; spraying said infectious waste material with a chemical disinfectant as it is fed to said grinding and grating means and again after grinding, grating, and macerating it; immersing said waste particle material in said chemical disinfectant contained in said immersion vat means; after immersion, conveying said waste particle material from said vat means to the exterior of said wheeled enclosure in said conveyor means and mixing said waste particles and said chemical disinfectant together as they are conveyed therein; conducting the exhaust of said petroleum fuel engine into said grinding and grating means, said immersion vat means, and said conveyor means whereby said waste particle material is heated during said steps of grinding, grating, macerating, spraying, immersing and conveying and becomes dried prior to being conveyed to the exterior of said wheeled enclosure by said conveyor means; subjecting said grinding and grating means, and said conveyor means to negative air pressure as said particles are being ground, grated, macerated, and conveyed, and venting the air through a filter to remove chemical fumes, airborne dust particles, odors, and bacteria therefrom; and discharging said dry confetti-like material from said enclosed screw conveyor system.