| 摘要 |
<p>The present invention addresses the problem of providing: a methane fermentation method which is excellent in terms of the possibility of resource recycling; and a hygienic straw material and litter. The problem is solved by: a method for methane fermentation which is characterized by subjecting straws that have been cut into sizes of 10-100 mm to methane fermentation in a fermentation broth and recovering a biogas and by recovering the fermented straws from the digestive juice to utilize the recovered straws as litter; and litter characterized by having been recovered from the digestive juice by the methane fermentation method. It is preferable that the problem be solved by conducting the methane fermentation at a temperature not lower than 50ºC.</p> |
