A system for treating infectious medical waste is provided that includes a collection infrastructure, handling, and a shredding sub-system for feeding partially processed waste to an oxidizer to eliminate potential airborne infectious waste prior to transforming the medical waste into useful co-products. Waste generators of potentially infectious medical waste include, but is not limited to hospitals, medical offices, dental offices, clinics, laboratories, research facilities, veterinarian offices, and emergency medical service providers. The medical waste is collected from the waste generators, transported to a processing site in sealed containers, and transformed into value-added products including hydrocarbon based gases, hydrocarbon-based liquids, and carbonized material in a system proceeded by a negative pressure region and having as a transformative element an anaerobic carbonizer.