Condition Initial COD (mg/L) Final COD (mg/L) COD removal (%) Biogas volume (mL)a Methane (%) Methane volume (mL)a mL CH4/g removed CODa
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
a30ÂșC, 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%).