Co-Digestion of Sugar Beet Silage Increases Biogas Yield from Fibrous Substrates

Table 3

Specific biogas and methane production rates evaluated for both experiments for the last 20 days.

Reactors		sBPR; ( kg^−1VS h^−1)	sMPR; ( kg^−1VS h^−1)
M : S
CFM1 (M : S-1 : 0)	20	0.90 ± 0.23	0.51 ± 0.14
CFM2 (M : S-6 : 1)		0.81 ± 0.24	0.47 ± 0.14
CFM3 (M : S-3 : 1)		0.86 ± 0.26	0.52 ± 0.16
CFM4 (M : S-1 : 3)		0.93 ± 0.27	0.55 ± 0.15
G : S
CFG1 (G : S-1 : 0)	20	0.27 ± 0.09	0.14 ± 0.05
CFG2 (G : S-6 : 1)		0.44 ± 0.14	0.27 ± 0.09
CFG3 (G : S-3 : 1)		0.49 ± 0.16	0.31 ± 0.10
CFG4 (G : S-1 : 3)		0.68 ± 0.31	0.50 ± 0.24

sBPR: specific biogas production rate; sMPR: specific methane production rate; different letters in parenthesis show significant differences among reactors for each experiment at .