Self-contained garbage anaerobic treatment device

摘要

PROBLEM TO BE SOLVED: To self-sufficiently make garbage anaerobic decomposition treatment by utilizing a material produced in the treatment. SOLUTION: A pulverizer 2 is formed of a coarse pulverizing part for cutting garbage 1 to granular bodies before making it slurry and a fine pulverizing part 30 for grinding the granular bodies between the opposed surfaces of a pair of nonporous grindstones relatively moving. An anaerobic treatment tank 4 having an intake 4a for the slurry from the pulverizer 2, an outflow port 4b for a digestion liquid 8 and a heater 5 is loaded with anaerobic microorganisms. A gas holder 6 communicating with the upper space in the treatment tank 4 and the heater 5 is provided. While combustible gas 6a produced on slurry decomposition treatment by the microorganisms in the treatment tank 4 is led to the heater 5 through the gas holder 6 and is burned to heat the treatment tank 4 to 50 deg.C-60 deg.C, the digestion liquid 8 after slurry decomposition treatment is caused to flow out from the outflow port 4b.