Anaerobic digestion method of organic sludge and anaerobic digestion apparatus

摘要

To provide a method and a device of anaerobically digesting organic sludge, capable of decreasing a power required for charging sludge while improving energy recovery efficiency, and of preventing clogging of a sludge charge pipe from occurring for a long period of time by a simple method.SOLUTION: The anaerobic digestion method of anaerobically digesting organic sludge 1 in a digestion tank 3, comprises a process of heating a sludge charging pipe 2 for supplying the digestion tank 3 with the organic sludge 1 having a sludge concentration of not lower than 5 wt%.SELECTED DRAWING: Figure 1