3.2. Amplification of the ratio of 3:2 for biogas production by corncob
After the fermentations of different ratios between corncob and
PM described in 3.1, 400 g corncob and about 30% inoculum of the
ratio 3:2 between corncob and PM were added into glass bottles
with working volume 4 L for anaerobic digestion. The fermentation
conditions were controlled as Section 2.2 described above. The
experiment continued for 29 days.
After the anaerobic fermentation of the amplification of the
ratio 3:2, 86.70 L of total biogas and 63.15 L of total methane were
produced, respectively. The average methane content was about
61.15%. Fig. 5 described the biogas and methane production rate
after the amplification of the anaerobic fermentation of the ratio
3:2. It reflected the anaerobic fermentation was successful with
the gas production trend by the daily biogas and methane