NOVELTY - The device comprises a fine particle processor for filtering raw water containing solid particles from a raw water inlet, a microorganism culture jar supplied with the raw water with fixed flow rate, a flow control bath exhausting and removing the fine particles in the raw water flowing from the fine particle processor, a flow adjustment tank adjusting the temperature of the hydrogen ion and the microbial culture with microorganisms, and thermophilic fermenter supplied with the constant microbial culture with a large amount of microorganisms.    USE - The device is useful for producing an organic carbon source from food wastes (claimed) coming from residential zone, home, and business sites.    ADVANTAGE - The device can economically produce high quality carbon source from food wastes using microorganisms through high temperature aerobic digestion.    DETAILED DESCRIPTION - The device comprises a fine particle processor for filtering raw water containing solid particles from a raw water inlet, a microorganism culture jar supplied with the raw water with fixed flow rate, a flow control bath exhausting and removing the fine particles in the raw water flowing from the fine particle processor, a flow adjustment tank adjusting the temperature of the hydrogen ion and the microbial culture with microorganisms, and thermophilic fermenter supplied with the constant microbial culture with a large amount of microorganisms, where an organic matter is injected into the microorganism culturing tank and the flow adjusting tank at 45-65 degrees c for decomposition of organic matter and nitrification of organic matter to remove ammonia nitrogen at high-temperature using autothermal thermophlic aerobic digestion. An oil purification pot is placed in an internal space of an oil reservoir for separating the oil from the raw water in the flow control bath. Oil feed pump transporting the oil containing water into the oil reservoir. The oil reservoir is supplied with predetermined thermal energy for separating oil. A microbubble nozzle is installed inside a high temperature aerobic digester. A circulation pump is installed in the oil reservoir. A blower is installed in the flow control bath for blowing air into the water. An INDEPENDENT CLAIM is included for a method for producing an organic carbon source from food wastes.