| 摘要 |
The invention relates to the separation of silicates, in particular silicon dioxide (SiO2) from plant materials, using fungi. Various forms of fungi and the enzymes produced by them are utilized in the first digestion of the plant material in order to reduce the energy required and the use of chemicals. The novel method makes use of the property of fungi that only they (and bacteria) are capable of splitting and utilizing lignin. They are also the key players when it comes to the degradation of cellulose, hemicellulose and keratin. The plant biomass is moistened with water for the method according to the invention. The degree of moisture depends on the fungal species used, which, in turn, depends on the plant species to be digested. The moist plant biomass is then inoculated with the fungal mycelium. Over time, the mycelium, the actual living being "fungus" develops, dissolves the biomass into absorbable compounds by the release of enzymes and feeds on these compounds. The biological process ends with the almost complete digestion of the plant material. The residual matter resulting from the digestion of the biomass is decomposed wet-chemically and / or burnt. The minerals separated in this process, in particular the silicates and the SiO2, are then available in very pure form. |
