Importance

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Abstract

Provided is an energy-saving, environmentally friendly biogas generation system that can reduce the generation of digestive fluid, can efficiently cause methane fermentation by removing ammonia in organic matter regardless of the freshness of the organic matter. The biogas generation system includes a sealed container 2 that contains the organic matter, a stirrer 3 that stirs the organic matter contained in the sealed container 2, a gas-fired boiler 4 that heats the inside of the sealed container 2 to a predetermined temperature, a vacuum pump 5 that reduces pressure in the sealed container 2, and a storage tank 6 that stores biogas generated by methane fermentation of the organic matter in the sealed container 2. Part of the biogas stored in the storage tank 6 is supplied to the gas-fired boiler 4 as fuel.

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First Claim