Table 2.
Initial specific rates of substrate utilization (gCOD/gMLSS-h), maximum PHA contents (% gPHA/gMLSS), and yields of PHA (gPHA/gCOD) at different cycles of SBR operation.
| Parameter | 4th cycle | 8th cycle | 12th cycle | 15th cycle | 22nd cycle | 25th cycle | Average ± SD |
|---|---|---|---|---|---|---|---|
| Initial specific rate of substrate utilization (gCOD/gMLSS-h) | 0.19 | 0.13 | 0.37 | 0.26 | 0.27 | 0.43 | 0.27 ± 0.11 |
| Maximum PHA content (% gPHA/gMLSS) | 14.4 | 12.1 | 32.3 | 26.4 | 22.4 | 19.6 | 21.2 ± 7.5 |
| Yield of PHA (gPHA/gCOD) | 0.28 | 0.39 | 0.34 | 0.26 | 0.40 | 0.27 | 0.30 ± 0.06 |