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.