TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The microorganism is photoautotrophic microorganism, Bacillus and yeast or its mixture.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The second stirring tank includes a magnetron for oscillating a microwave to allow quickly drying paste condition of food waste which is passed via the through hole of the intermediate plate, a single rotating shaft for forwarding rotational force to a stirring blade, stirring the food waste during rotation, and provided across all areas of the first stirring tank and the second stirring tank, an opening and closing door for opening and closing the injection pipe, provided on upper part of the injection pipe, a sliding door for opening and closing path of the first stirring tank, horizontally sliding from the injection pipe, provided on lower part of the injection pipe, a radio-frequency identification reader for accessing user tag holder from certain distance, detecting access of the tag to allow opening of the injection pipe, and a controller for operating opening and closing of the door. The first stirring tank includes a microbial injector for injecting new microorganism into the first stirring tank when fermentation ability of the microorganism is detected low based on the information obtained via the fermentation detection sensor, and provided with a fermentation sensor for detecting fermentation conditions of food waste, and generation amount of carbon dioxide or methane. The processing unit further comprises an inflow fan for inflowing gas from the first stirring tank and the second stirring tank, provided inside a first pipe, connected to the first stirring tank and the second stirring tank, a cooler for cooling the flowed gas, connected to the first stirring tank and the second stirring tank via the first pipe, a condensate receiver tank for accommodating the liquefied and generated condensed water via the cooler, connected to the cooler, and an outflow fan for existing non-liquefied gas from the first stirring tank, provided in a second pipe, and connected to the first stirring tank and the second stirring tank. The suction side of the inlet fan is provided with a filter for purifying the hazardous substances, and the condensate receiver tank is injected microorganism for the deodorization. The first pipe has hydrogen battery for supplying power to the inflow and outflow fan, and electricity is produced via hydrogen gas which is generated by decomposition of food waste after activation of microorganism into the first stirring tank and the second stirring tank.