Recovery of natural fibrous material from biogas plants comprises separating residue after degasification by wet fermentation and dry fermenting it to produce finely structured cellulosic fibers

摘要

Recovery of natural fibrous material from biogas plants comprises separating the residue after degasification by wet fermentation. This is then dry fermented without further separation or use of additives to produce finely structured cellulosic fibers, unused waste heat from the biogas plant being used to dry the fibers.