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Selected Publication:

Weiland, K; Alge, K; Mautner, A; Bauer, A; Bismarck, A.
(2023): Horse manure as resource for biogas and nanolignocellulosic fibres
BIORESOURCE TECHNOL. 2023; 372, 128688 FullText FullText_BOKU

Nanofibrillated cellulose (NFC) has key applications in composites, water filters and as emulsifiers. The affinity of NFC to water is a challenge, as it negatively influences its integrity. Lignin, a major component of plant biomass, is a natural hydrophobiser. Anaerobic digestion (AD) of biomass to produce biomethane allows to up-concentrate lignin in the fermentation residue containing lignocellulosic fibres. Horse manure was used as substrate for biogas production from which nanolignocellulose fibres (LCNF) were extracted. A biogas yield of 207 LN kg(VS)(-1) with a methane concentration of 65 % was achieved. From the fermentation residue LCNFs, in yields of up to 41 %, with lignin contents between 23 and 29 wt% depending on fermentation time were obtained. Nanopapers produced from LCNFs possessed tensile strengths and moduli of 45 to 91 MPa and 7 to 8 GPa, respectively. The increased lignin content was responsible for decreased water absorption capacity of nanopapers. [GRAPHICS] .
Authors BOKU Wien:
Bauer Alexander
Mautner Andreas

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