| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To lower surface tension generated between a sheet and a water surface, to suppress gas accumulation between the sheet and the water surface, and to prevent the breakage of the sheet and the destruction of airtightness by a simple configuration. <P>SOLUTION: The anaerobic fermentation system includes: a lagoon 1 for storing slurry containing anaerobes; a sheet 2 which covers the upper part of the lagoon 1 so as to prevent the intrusion of a gas from the outside and is spread so as to swell corresponding to the amount of a gas generated from the slurry stored in the lagoon 1; a floating body 5 arranged inside the lagoon 1 so as to float in the slurry and provided with a frame for sectioning the water surface S of the slurry into a plurality of sections; and an exhaust pipe 3 provided with an exhaust port 31 capable of exhausting the gas generated from the slurry. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
