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)
53.9 ± 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)
104.1 ± 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)
154.8 ± 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)
205.1 ± 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.