FIELD: waste disposal.
SUBSTANCE: invention relates to the field of thermal disposal of medical waste, except radioactive waste, at the places of their formation using pyrolysis technology. The method of disposal of medical waste is that medical waste is loaded into a pyrolysis unit, processed in an oxygen-free atmosphere, followed by combustion, and the sludge formed after afterburning is unloaded and buried or sent for processing. In this case, mixed medical waste pre-collected in a container is loaded into a pyrolysis unit, the power supply of which is provided by a motor-generator. Then the waste is dried at the temperature of 90-100°C using a vacuum water pump and electric heaters of the pyrolysis unit, the gaseous waste from drying is passed through the water of the water pump and fed into a water tank, chemical neutrality of which is maintained by dosing acid or alkali into it. When humidity of the waste in the pyrolysis unit reaches 5-10%, supply of gases to the vacuum water pump is stopped, and the heating temperature in the pyrolysis unit is increased to 400-600°C. The resulting pyrolysis gases are supplied to the motor-generator engine as fuel, and the engine exhaust gases are directed through the vacuum water pump into the water tank. When the threshold concentration of pyrolysis gases in the pyrolysis unit is reached, oxygen is supplied to it from the electrolyser, and the waste residues are burned at the temperature of 1100-1200°C, and, after afterburning of waste, sludge is unloaded. Moreover, hydrogen generated during electrolysis is supplied to the motor-generator engine as fuel, and the exhaust gases from the electrolyser are directed through the vacuum water pump into the water tank. In this case, regulation of acidity of water in the tank and in the electrolyser, regulation of supply of gases from the pyrolysis unit to the vacuum water pump and to the engine of the motor-generator, regulation of the supply of hydrogen to the engine of the motor-generator is carried out automatically by a central controller with software by receiving signals from the control devices and transmitting them to the control valves.
EFFECT: reduced labour intensity due to recycling all medical waste at the sites of its generation without separating into waste classes using an automated control system while maintaining environmental and climate neutrality in the disposal area, see fig.
3 cl, 1 dwg
