Enhancing Biogas Production from Sugarcane Bagasse Using Steam Explosion in According With Acetic Acid Pretreatment

Dilute acetic acid was used to pretreat sugarcane bagasse with 180 degrees C steam explosion prior to anaerobic digestion. The Central Composite Design (CCD) was employed to recognize the optimum condition of pre-treatment sugarcane bagasse for biogas production. The individual variable effects of acetic acid concentration and reaction time on enhancing biogas production were investigated using response surface methodology (RSM). Data obtained from RSM analysis on biogas production were depending on analysis of variance (ANOVA). After optimization, the optimum pre-treatment condition was at 1.0% acetic, 17.45 mm reaction time, while the maximum biogas production (434.47 L/kgVS) was 91.88% higher than the control (226.42 L/kgVS). Hence the optimum pre-treatment conditions for maximum biogas production were obtained by RSM analysis. It can be concluded that dilute acetic acid and steam explosion techniques can be used to achieve higher biogas.