Table 2 Variations of VS reduction, pH, 16 S rRNA gene copies of bacteria and archaea, methane yields and methane content in three ADs after 60 days of operation.
From: Three-stage anaerobic co-digestion of food waste and horse manure
Digester | OLR (g VSFW/L) | pH | VS Reduction (%) | 16 S rRNA gene copies/g TS | Biogas | ||
|---|---|---|---|---|---|---|---|
Bacteria | Archaea | CH4 content (%) | Yield L CH4/g VS/L | ||||
HM1 | 12.5 | 7.3 ± 0.1 | 57 ± 2 | 1.5 ± 0.1 × 109 | 5.0 ± 0.2 × 107 | 55 ± 3.7 | 0.3 ± 0.01 |
HM2 | 12.5 | 7.7 ± 0.2 | 62 ± 3 | 1.8 ± 0.2 × 109 | 6.4 ± 0.3 × 107 | 60 ± 5.9 | 0.34 ± 0.09 |
HM3 | 12.5 | 7.9 ± 0.1 | 71 ± 3 | 2.0 ± 0.3 × 109 | 1.1 ± 0.2 × 108 | 63.9 ± 7.5 | 0.37 ± 0.01 |
