4. Conclusion
Analyzing the experimental dataset it was found that, the production of biogas from WAS largely depends on the
initial total solid concentration.
If the amount of TS content was changed, the production of the gas was also changed.
The maximum gas production was 0.231 L (g VS) -1 for TS concentration studied 35.8 g L which gave the kinetic parameters of biogas production i.e. biogas production rate constants (P), maximum biogas production (Rm), and minimum time to produce biogas () are 6.650 L; 0.856 L day and 1.865 days, respectively.
The graphs have verified that Modified Gompertz equation best describes cumulative gas produced as a function of
retention time.