Table 3 Mean (± SE.) values of RL for Langmuir and Qe for Freundlich adsorption isotherm for Sr2+ in the studied soil
Time | Conc. Sr2+ | Initial conc. | Langmuir | Freundlich | ||
|---|---|---|---|---|---|---|
(h) | (mM) | (mg.L− 1) | RL | SE. | Qe | SE. |
0 | 0 | 0.000 | 0.000 | 0 | 0.000 | 0 |
10 | 45.9 | 0.024 | ± 0.00003 | 1.60 | ± 0.01 | |
20 | 59.8 | 0.008 | 0 | 3.15 | ± 0.01 | |
40 | 174 | 0.006 | 0 | 6.67 | ± 0.02 | |
1 | 0 | 0.000 | 0.000 | 0 | 0.000 | 0 |
10 | 36.2 | 0.019 | ± 0.00003 | 1.57 | ± 0.01 | |
20 | 49.8 | 0.007 | ± 0.00000 | 3.33 | ± 0.01 | |
40 | 133 | 0.004 | 0 | 6.96 | ± 0.09 | |
24 | 0 | 0.000 | 0.000 | 0 | 0.000 | 0 |
10 | 43.4 | 0.023 | ± 0.00001 | 1.63 | ± 0.01 | |
20 | 57.1 | 0.007 | 0 | 3.31 | ± 0.02 | |
40 | 173 | 0.006 | 0 | 7.03 | ± 0.08 | |
168 | 0 | 0.000 | 0.000 | 0 | 0.000 | 0 |
10 | 49.4 | 0.026 | ± 0.00002 | 1.56 | ± 0.01 | |
20 | 113 | 0.015 | 0 | 3.23 | ± 0.01 | |
40 | 195 | 0.006 | 0 | 6.87 | ± 0.11 | |
504 | 0 | 0.000 | 0.000 | 0 | 0.000 | 0 |
10 | 72.3 | 0.037 | ± 0.00003 | 1.59 | ± 0.01 | |
20 | 166 | 0.021 | ± 0.00001 | 3.32 | ± 0.03 | |
40 | 337 | 0.011 | 0 | 6.67 | ± 0.04 | |