Research Article
Biodegradation of Polyethoxylated Nonylphenols
Table 2
Physical chemical parameters of the 0.0605 M NPEO15 degradation by Klebsiella pneumoniae strain Yas1.
| Incubation time (h) | Flow time (s)* | Remaining NPEO (moles L−1) | Density (g L−1)** | Viscosity (g cm−1 s−1) |
| 0 | 283.9 | 0.0605 | 1.0200 | 1.1500 | 8.5 | 259.7 ± 1.689† | 0.0348 | 0.9287 ± 0.0395† | 0.9583 | 22.5 | 273.6 ± 1.376 | 0.0495 | 0.9964 ± 0.044 | 1.0831 | 32.5 | 250.0 ± 2.185 | 0.0245 | 0.9146 ± 0.0049 | 0.9084 | 49.5 | 256.0 ± 1.260 | 0.0308 | 0.9140 ± 0.0071 | 0.9296 | 54.5 | 247.0 ± 2.753 | 0.0213 | 0.9129 ± 0.0058 | 0.8959 | 71.0 | 285.5 ± 1.941 | 0.0622 | 1.0137 ± 0.039 | 1.1479 |
|
|
Flow time of the FBF in the viscometer at 25°C, average of nine measurements. **Average of six measurements. †Standard deviation.
|