| 摘要 |
<p>Process for the recovery and use, as soil improvement agents, of dusts and powders derived from the industrial processing of fiber plants. The fiber plants are particularly flax and hemp plants. The process comprises aspiration of the refuse from the mechanical extraction of the plant fibers, quality control of this refuse, its compacting and granulation by forced screening, and storage. The recovery is preferably effected using a rotating separator having calibrated perforated sheets, followed by filtration on textile sleeves and recovery in a hopper. The quality of the product is assessed by measuring the humidity, organic content, heavy metal presence, homogeneity, presence or absence of pathogenic organisms, and odor. The product has a potential humic content of at least 200 kg, and preferably at least 300 kg per 1000 kg. The total organic content is at least 65%, comprising 12-15% hemicelluloses, 25-50% cellulose, and 6-15% lignin.</p> |
