Table 3 Assessment of available online-measurement equipment for biogas plants
From: Agricultural biogas production in Germany - from practice to microbiology basics
| Unit | Effort | Maintenance | Robustness | Cost | Benefit | |
|---|---|---|---|---|---|---|
| Biogas composition | % (v/v) | + | - - | 0 | 0 | ++ |
| Biogas rate | m3 · d-1 | 0 | 0 | ++ | + | + |
| pH | + | - - | - | - | 0 | |
| Redox potential | mV | + | - - | - | - | - |
| TS content | % (m/m) | + | 0 | ++ | - | + |
| VS content | % (m/m) | - - | - - | 0 | - - | ++ |
| Temperature | °C | ++ | ++ | ++ | ++ | 0 |
| SCFA content | mg · L-1 | - - | - - | ++ | - - | ++ |
| Buffer capacity | mg · L-1 | - - | - - | ++ | - - | ++ |