Table 2
Test and evaluation of the system performance.
Component Biogas production analysis Standards (Department of Energy) Test method
Before the system improve After the system improvement
CH4 68.8% 89.35% Not less than 65 ASTM D1945
CO2 29.7% 10.05% Not higher 18 ASTM D1945
O2 0% 0.02% Not higher 1.0 ASTM D1945
H2S 768 ppm Less than 0.01 ppm Not higher 23.0 mg/m3 GC