Towards Sustainable Biogas from Sugarcane Bagasse: Synergistic Effects of Pre-treatment Methods on Methane Production

Authors- Srinivas Kasulla, S J Malik, Fredrick Kayusi, Anjani Yadav, Gaurav Kathpal

Abstract-New depleting fossil fuel needs coupled with changes in the climate scenario open critical demands for renewable sources of energy. Among these, one finds biogas, a product of renewable energy harvested from organic wastes through anaerobic digestion. The aim of the current research work therefore deals with producing a detailed review concerning the synergistic interactions between several pre-treatment techniques that include both thermo-chemical and enzymatic types regarding the possible production of biogas from sugarcane bagasse. Generally, it searches for optimized combinations of these pre-treatments directed at the highest possible yields of methane from all the potentially available lignocellulosic biomass. It looks for optimized strategies that may indicate further prospects for better biogas within a wider perspective: the better alternative to sustainable energy production and waste management (Hernández-Beltrán et al., 2019; Prasad et al., 2024). This can be seen clearly in the experimental data; any blend of different pretreatment categories, such as Steam Explosion followed by Acid Hydrolysis or Alkali Treatment supplemented with Enzyme Addition, significantly increases biogas and methane production in comparison to all scenarios of single treatments. Methane contents have been found to be better uniform for all these combinations but Acid Hydrolysis is especially associated with enhancements of larger size, at least considering longer treatment times. There is, therefore scope for further improvement in multi-stage pre-treatment processes regarding the production of biogas from sugarcane bagasse (Galindo-Hernández et al., 2018; Capecchi et al., 2015). One implication that might be drawn from the results of this work is that multi-stage pre-treatments may one day be used to diffuse methane production from sugarcane bagasse feedstock much more accessible to the biogas process. This work examines progress on a number of blends of thermal, chemical, and enzymatic pre-treatments in optimizing the sustainable production of biogas from lignocellulosic feedstocks. These advances will one day lead to an environment-friendly and scalable production of biogas from agricultural wastes (Prasad et al., 2024; Olatunji et al., 2021).

DOI: /10.61463/ijset.vol.12.issue6.386