Title
Horse manure as resource for biogas and nanolignocellulosic fibres
... show all
Abstract
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 kgVS−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.
Keywords
BiogasNanolignocelluloseMechanical propertiesUp-cyclingWettability
Object type
Language
English [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1939137
Appeared in
Title
Bioresource Technology
Volume
372
ISSN
0960-8524
Issued
2023
Publisher
Elsevier BV
Date issued
2023
Access rights
Rights statement
© 2023 The Author(s)
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