| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing a good quality liquid fertilizer having uniform characteristics and excellent operability for the application, containing effective components for vegetable production and a small quantity of odorous components which brings the difficulty of the application work and capable of preventing the adverse influence on vegetables due to sulfur oxide and realizing the recycling or the effective use of unutilized organic materials. <P>SOLUTION: Liquid waste 3 is made by separating and removing a solid material containing biologically hardly degradable components from organic waste 1 containing at least livestock excreta by a pretreatment 2 and is anaerobically fermented in an anaerobic fermentor 8 to obtain the liquid fertilizer 9. In such a case, sulfur components dissociated in the anaerobic fermentation is fixed as iron sulfide in the liquid fertilizer 9 by adding a liquid 5 prepared by dissolving iron chloride into the liquid waste 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
