Energy & Fuels, Vol.30, No.8, 6425-6429, 2016
Biogas Production Performance of Different Components from Banana Stems
The object of this paper was to provide data for process design and economic feasible analysis of biogas production from banana stems. Fresh banana stems were separated into fiber cells (FC), parenchyma cells (PC), and liquid, and their biochemical methane potential (BMP) was analyzed. The BMP of FC, PC, and liquid were 225.0 +/- 17.0 mL/g of total solids (TS), 187.5 +/- 12.1 mL/g of TS, and 299.6 +/- 12.6 mL/g of chemical oxygen demand (COD), accounting for 56.18, 40.48, and 3.34% of the total methane production of banana stems, respectively. Smashing before squeezing increased the COD of liquid from 1939 to 7464 mg/L, and the percentage of methane production from liquid would increase to 11.96%. Therefore, squeezing before transportation directly or after smashing can be used to both reduce transportation cost and, thus, increase the economic feasibility of biogas production from banana stems.