| 摘要 |
<p>PURPOSE:To obtain a high-quality compost having high base-substitution capacity by pretreating a wood resource with a lignin-decomposing fungus and subjecting the treated product to conventional composting treatment. CONSTITUTION:A wood resource is subjected to the primary fermentation with a lignin-decomposing fungus and then to the secondary fermentation by conventional composting treatment. The primary fermentation is carried out by adjusting the water-content of a wood raw material, optionally adding a nitrogen source and other nutrient sources and inoculating a lignin-decomposing fungus. Various kinds of basidiomyucetes and various other microorganisms capable of decomposign lignin can be used as the lignin-decomposing fungus. Microorganisms belonging to genus Corious, Polyporus, Stereum, etc., are examples of the lignin-decomposing fungus. The culture conditions of the primary fermentation depend upon the kind of the fungus and are usually about 25-30 deg.C and about 3-20 days.</p> |
