Table 2.
Reactor operating conditions during the experimental phases.
| Parameter a | Mono-Digestion | Co-Digestion | |
|---|---|---|---|
| Phase I | Phase II | Phase III | |
| Period (d) | 0–112 | 112–143 | 143–165 |
| CM feeding rate (L/d) | 2.0 | 2.0 | 2.0 |
| BPE feeding rate (L/d) | – b | 0.2 | 0.4 |
| CM feeding frequency (times/d) | 4 | 4 | 4 |
| BPE feeding frequency (times/d) | – | 2 | 2 |
| Hydraulic retention time (d) | 19.5 | 17.7 | 16.3 |
| Organic loading rate (g tCOD/L/d) | 0.65 | 1.13 | 1.80 |
| Organic loading rate (g VS/L/d) | 0.39 | 0.42 | 0.47 |
a CM: chicken manure; BPE: process effluent from a bioethanol plant; tCOD: total COD; VS: volatile solids. b Not applicable.