| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To produce a solid fertilizer which is easy for storing, transporting and application work from a methane fermentation liquid. <P>SOLUTION: When the solid fertilizer is produced from the methane fermentation liquid, the adjusting of the methane fermentation liquid to be acid by acetic acid and the like and the addition of a clay mineral together with woody wastes containing a fiber component are favorable. In the case of using fibrous wastes as the woody wastes, the fibrous wastes are shaped naturally to be hair-balls while mixing in a rotary drum mixer and then an easily handleable shape is formed. A producing method of the solid fertilizer is simple and has little energy consumption and then the methane fermentation liquid which is now treated with a purification-discharging treatment in many cases is transformed to the solid fertilizer for crop cultivation. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
