DOI: 10.5937/jaes18-24711
This is an open access article distributed under the CC BY-NC-ND 4.0 terms and conditions.
Volume 18 article 672 pages: 157 - 164
Biogas is an alternative energy that can be produced from various biomass, sago solid waste is one of them. Sago
solid waste was obtained from processing sago stems into sago starch. Sago solid waste should be treated to separate
lignocellulose that can be used as raw material for biogas production. In this study, pre-treatment was done
to anaerobic fermentation. Physical pre-treatment was done by milling the biomass into small pieces. Chemical
pre-treatment was done by using NaOH solvent, and biological pre-treatment used a microbial consortium. Characterization
of pretreated sago solid waste was analyzed with Scanning Electron Microscopy (SEM) combined with
Energy Dispersive X-Ray (EDX) for inorganic element composition analysis. The functional group changes were
characterized by Fourier Transform Infrared (FTIR) and lignocellulosic composition was analyzed by the Van Soest
method. The analysis of results showed that chemical and biological pretreatment significantly degradation lignocellulose
than other methods based on morphologies of sago hampas granules. The biological pre-treatment was
capable of degraded lignin up to 3.47% and hemicellulose 8.01%.
This research was supported by LPDP as a funding
sponsorship for financial support.
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