| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To inhibit the output fluctuation of biogas in a biogas generating plant for fermenting excreta and the like to output the biogas. <P>SOLUTION: In the biogas generating plant 1, raw material 11, such as excreta, is received, and diluted with water 16, obtained by dehydrating digested liquid 15, in a raw material receiving tank 21, and then warmed by a heating device 24 using the digested liquid 15 as a heat source to be supplied to a fermentation tank 2 as material 12 to be treated. By using the digested liquid 15, the material 12 to be treated can be warmed without deteriorating the energy balance of the biogas generating plant 1, and temperature change of the fermentation tank 2 due to the feed of the material 12 to be treated can be inhibited, thereby suppressing a peak of biogas generation thereafter to make the output fluctuation small. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
