3.2 Biogas production in fed batch process
The amount of biogas and methane concentration
at HRT of 20 days using various organic loading rates is illustrated in Fig 4. The results showed that at organic loading rate of 1 kg/m3/day, the amount of gases as well as the percentage of methane was highest. The highest methane concentration was 32.96% at 1 kg/m3/day of organic loading rate.
Also, COD, TS, VS removal efficiency at
organic loading rate of 1 kg/m3/day represented the highest removal efficiency over the other higher organic loading rate (Table 2). This indicated that COD removal, TS removal and VS removal efficiency were higher when the optimum condition was provided.