Table 3 Parameters characterizing the MMC selection and PHA accumulation processes with the three OFMSW-supernatants
Substrate | PHA contenta (g kg−1 VSS) | Polymer composition (ΔHB/ΔHV) (% w/w) | PHA yieldc (mg mg−1 CODcons.) | PHA yieldd (mg mg−1 CODOA-cons.) | PHA yielde (g kg−1 CODin) | PHA yieldf (g kg−1 OAin) | PHA productivity (g L−1 day−1) | X growth yieldg (mg mg−1 CODcons.) |
|---|---|---|---|---|---|---|---|---|
Selection | ||||||||
OFMSW-supernatantin 1 | 342 ± 23 | – | 0.51 ± 0.02 | 0.85 ± 0.26 | – | – | – | 0.16 ± 0.01 |
OFMSW-supernatantin 2 | 383 ± 2 | – | 0.54 ± 0.07 | 0.87 ± 0.09 | – | – | – | 0.05 ± 0.01 |
OFMSW-supernatantin 3 | 234 ± 20 | – | 0.42 ± 0.04 | 1.15 ± 0.34 | – | – | – | 0.09 ± 0.01 |
Accumulation | ||||||||
OFMSW-supernatantacc. 1 | 476 ± 41b | 56.5 ± 3.5/43.5 ± 3.5 | 0.44 ± 0.17 | 1.13 ± 0.18 | 134 ± 22 | 230 ± 38 | 4.4 ± 1.3 | – |
OFMSW-supernatantacc. 2 | 465 ± 21b | 54.5 ± 2.6/45.5 ± 2.6 | 0.52 ± 0.1 | 0.75 ± 0.21 | 128 ± 16 | 220 ± 28 | 4.3 ± 1.2 | – |
OFMSW-supernatantacc. 3 | 405 ± 28b | 57 ± 2/43 ± 2 | 0.5 ± 0.1 | 0.66 ± 0.09 | 94 ± 5 | 161 ± 9 | 7 ± 0.9 | – |