Experiment Total gas production [mlN/ml] Duration of experiment [days] Moment of stagnation [day] Percentage of hydrogen production [%] Hydrogen production [mlN/ml]
Typha ‘a” 0.80-1.25 22-33 15-33 22.21-34.06 0.18-0.43
Typha ‘b” 0.63-1.26 22-33 13-33 12.83-22.91 0.08-0.29
Sediment “a” 0.70-1.23 22-33 15-33 24.31-28.67 0.17-0.35
Sediment “b” 0.53-1.28 22-33 18-33 2.11-25.65 0.01-0.33
Table 5: Main characteristics of the gas production in the experiments