Biodegradation of Polyethoxylated Nonylphenols

Table 4

Chemical oxygen demand.

Incubation time (h)	COD values (mg O2 L^−1)
	Strain Yas1	Strain Yas2
0	20,230 ± 4,303^†	20,230 ± 4,303^†
6	2,000 ± 1,058	3,333 ± 1,890
24	666.4 ± 462	3.066 ± 1.285

†Standard deviation.