Table 5 The operational parameters and duration of the experiment
Reactor no. | Feeding phase | Feed concentration (TS%) | HRT (d) | Duration | OLR (g VS/(L day)) |
|---|---|---|---|---|---|
R1 | Replacement | 4 | 25 | 0–25 day | 1.50 |
Full-load | 4 | 25 | 26–50 day | 1.50 | |
6 | 25 | 51–100 day | 2.24 | ||
Gradual overload | 8 | 25 | 101–113 day | 2.99 | |
Recovery | 0 | 25 | 114–120 day | 0.00 | |
Sudden overload | 4 | 25 | 121–128 day | 1.50 | |
6 | 25 | 129–137 day | 2.24 | ||
8 | 25 | 138–146 day | 2.99 | ||
9 | 25 | 147–165 day | 3.37 | ||
R2 | Replacement | 6 | 30 | 0–30 day | 1.87 |
Full-load | 6 | 30 | 31–60 day | 1.87 | |
6 | 25 | 61–110 day | 2.24 | ||
Gradual overload | 6 | 20 | 111–150 day | 2.81 | |
6 | 15 | 151–170 day | 3.74 |