Table 6. Process performance of two-stage anaerobic digestion of high moisture municipal solid waste (MSW) from Nakhon Si Thammarat landfill site, Thailand.
| Hydrogen production stage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Initial VS loading (g-VS L−1) | IFA addition (%) | Hydrogen yield (mL H2 g−1VS) | Hydrogen production (m3 H2 tonne−1 MSW) | Hydrogen production rate (mL H2 g−1VS d−1) | Lag phase (d) | Hydrolysis constant (d−1) | VFAs (mg L−1) | Alkalinity (mg-CaCO3 L−1) | Biodegradation (%) |
| 9 | 0.5 | 40.8 | 6.94 | 16.20 | 0.48 | 0.871 | 1,607 | 1,050 | 9.1 |
| 17 | 0.5 | 47.6 | 8.10 | 12.70 | 0.79 | 0.502 | 1,185 | 900 | 10.6 |
| 26 | 0.5 | 46.4 | 7.90 | 8.58 | 0.78 | 0.412 | 1,706 | 925 | 10.3 |
| 35 | 0.5 | 43.3 | 7.36 | 6.33 | 0.14 | 0.301 | 1,771 | 1,087 | 9.6 |
| 43 | 0.5 | 42.5 | 7.23 | 5.65 | 0.14 | 0.229 | 2,066 | 1,062 | 9.4 |
| 9 | 1 | 16.4 | 2.80 | 7.96 | 1.02 | 0.331 | 1,350 | 950 | 3.6 |
| 17 | 1 | 41.3 | 7.03 | 15.88 | 1.08 | 0.522 | 1,195 | 987 | 9.2 |
| 26 | 1 | 43.0 | 7.32 | 11.03 | 0.81 | 0.504 | 1,423 | 1,050 | 9.6 |
| 35 | 1 | 36.1 | 6.14 | 8.45 | 0.47 | 0.463 | 2,020 | 1,300 | 8.0 |
| 43 | 1 | 47.4 | 8.06 | 8.11 | 0.24 | 0.358 | 1,680 | 1,075 | 10.5 |
| 9 | 0 | 8.05 | 1.39 | 1.61 | 0.68 | 0.348 | 3,328 | 315 | 1.8 |