| 摘要 |
<p>In a process for conversion of biomass into soil conditioners, manures and/or plant culture substrates, the possibly size-reduced biomass is placed in a heap and allowed to undergo natural decomposition processes until the desired degree of conversion is reached. Various types of biomass are disposed in superimposed layers each consisting mainly of one type of biomass. The lowest layer consists mainly of wood comminuted to sawdust particle size, the next layer consists mainly of green vegetables, the next layer consists mainly of surface-moistened straw, and the next layer consists mainly of manure containing cow manure. A further layer consisting mainly of wood size-comminuted to sawdust particle size is placed over the top. The thickness of the layers of comminuted wood is such that they prevent the escape of the volatile decomposition products.</p> |
