Condition
Initial COD (mg/L)
Final COD (mg/L)
COD removal (%)
Biogas volume (mL)
a
Methane (%)
Methane volume (mL)
a
mL CH4/g removed COD
a
Control
3400
240
93
65
nd
nd
0
Condition 1
6147
412
93
79
80
63.2
122.4
Condition 2
4867
304
94
80
82
65.6
159.7
a
30ÂșC, 1 atm, 8 days
Table 6:
Anaerobic biodegradability tests with the addition of the enzyme pool and biosurfactant under different conditions (Standard deviation less than 5%).