You have no items in your shopping cart.
Abstract
Bambusa vulgaris, a rapidly growing perennial woody plant, is a versatile and sustainable biomass resource with numerous applications. This study seeks to optimize pre-treatment techniques to enhance biogas yield from bamboo wastes, thereby advancing waste management and eco-friendly sustainable energy production. The research addresses the complex lignocellulosic structure of bamboo, which hinders effective anaerobic digestion, by evaluating various pre-treatment methods and assesses the impact of specific biological pre-treatment techniques to increase biogas yield and improve system efficiency. Results unveil varied gas production dynamics and substrate characteristics among different treatments, with poultry dung-adjusted bamboo substrate (PGbmb) demonstrating the highest gas production rates, peaking at 975 ml at 200 hours. Regression analysis establishes significant correlations between gas production volume and time, highlighting the effectiveness of certain pre-treatment methods. The rate of gas production varies among treatments, with PGbmb achieving the highest rate of 14.84 ml/hr, while gas production in the yoghurt-enhanced substrate (YGbmb) had the lowest rate at 0.46 ml/hr. Nutrient analysis of biodigestate revealed differences in nutrient content among bamboo-modified substrates, with PGbmb, CDbmb, and YGbmb exhibiting higher nitrogen and phosphorus levels compared to the control. Observations of substrate characteristics, including odor and vapor coverage, provide insights into the effects of pre-treatment on substrate composition and anaerobic digestion processes. YSbmb produced the strongest (pungent) smell. Vapor coverage varies among treatments, with CDbmb showing the highest coverage at almost 60% of the measuring cylinder. Overall, this research contributes to the optimization of biogas production from bamboo wastes.
