Table 2.

Process parameters recorded at the time of sampling

Parameters	Unit	Inoculum	1st day	10th day	22nd day	30th day	43rd day
TS	g/L	28.30	36.20	30.85	29.95	31.00	35.55
VS	g/L	23.30	26.10	21.85	22.65	24.20	27.85
pH	–	7.28	7.38	7.51	7.55	7.60	7.60
COD	mg O2/L	2,479	2,000	3,033	2,899	2,941	2,815
VFAs	mg/L	1,611	1,543	1,371	1,423	1,611	1,457
Ammonia	mg N–NH4 +/L	389	417	504	661	812	770
Biogas production	L/day	–	0.15	8.45	8.22	7.67	8.23
Methane production	L/day	–	0.08	5.23	5.16	4.84	5.27