They operated the reactors at two different organic loading rates
(OLR) 0.25 and 0.5gVS/l.d, with the HRT of 25days. The
average biogas production was 0.150 and 0.300 L/day for two
OLR rates respectively. Percent conversion of TS and VS was
in the range of 53-62% and 62-67% respectively for two OLRs.
The biogas yield was, 0.383 and 0.522 l/g TS added and 0.423
and 0.576 l/g VS added for the two OLR respectively. The
methane content in the gas was around 63% and methane yield
was 0.226 and 0.362 l CH4 / g VS added for the selected
vegetables for the two OLR respectively. Dhanalakshmi and
Ramanujam9 analyzed the performance of the vegetable waste
based batch reactor and for determining cumulative biogas
production for a given organic loading rate. The OLR used in
experiment was in the range of 0.06 gm VS to 0.47 gm VS.
Biogas production increased from OLR 0.06 gm VS to 0.26 gm
VS and thereafter quantity decreased. Maximum Cumulative
gas produced was found to be 3764 ml for 0.26 gm VS OLR.
Babaee and Shayegan10 conducted experiment to investigate the
production of biogas from vegetable wastes by using anaerobic
digestion process. They operated the digester at different
organic feeding rates of 1.4, 2 and 2.75 kg VS/ m3.d. The
methane content of biogas was in the range of 49.7- 64% and
biogas production rates was in the range of 0.12-0.4 m3 biogas/
(kg VS input). The methane yield was found to be 0.25
m3CH4/kg VS with 88% VS reduction at OLR of 1.4 kg VS/m3.d.