TABLE 2.
Bioremediation efficiency of S. obliquus at different concentrations of PL on day 21 of incubationa
| PL concn (g liter−1) | Orthophosphate (mg liter−1) | Ammonium (mg liter−1) | Nitrate (mg liter−1) | Nitrite (mg liter−1) | Total organic carbon (mg liter−1) |
|---|---|---|---|---|---|
| 5 | 3.9 ± 0.2 (50.7 ± 0.8) | 1.6 ± 0.2 (59.3 ± 0.9) | NDb (4.6 ± 0.3) | ND (0.7 ± 0.1) | 31.2 ± 0.2 (58.6 ± 0.7) |
| 10 | 4.1 ± 0.4 (104.2 ± 3.1) | 1.7 ± 0.1 (120.9 ± 1.3) | ND (9.7 ± 0.2) | ND (1.5 ± 0.2) | 68.5 ± 0.6 (116.4 ± 1.8) |
| 15 | 4.8 ± 0.2 (151.4 ± 2.4) | 2.2 ± 0.3 (182.1 ± 2.3) | ND (13.8 ± 0.6) | ND (2.3 ± 0.1) | 87.2 ± 1.3 (175.2 ± 2.6) |
| 20 | 5.1 ± 0.9 (206.4 ± 4.2) | 2.5 ± 0.2 (237.4 ± 3.2) | ND (20.1 ± 0.5) | ND (2.9 ± 0.3) | 111.2 ± 1.8 (230.7 ± 3.1) |
a
Values represent the averages ± standard errors of data based on three independent determinations. Values in parentheses represent data from determinations at day 0.
b
ND, not detected.