Heavy metal ions adsorbed | Freundlich Isotherm | Temkin Isotherm | |||||
kf | n | R2 | A | B | b = RT/B | R2 | |
Nickel | 0.479 | 1.035 | 0.995 | 0.143 | 8.89 | 281.498 | 0.958 |
Copper | 5.578 | 0.799 | 0.978 | 1.134 | 17.52 | 142.838 | 0.955 |
Zinc | 11.98 | 1.536 | 0.939 | 5.004 | 7.999 | 312.853 | 0.952 |
Lead | 3.658 | 1.157 | 0.985 | 0.439 | 18.88 | 132.548 | 0.99 |
Cadmium | 4.167 | 1.919 | 0.909 | 0.638 | 7.969 | 314.031 | 0.97 |
Chromium | 10.01 | 0.710 | 0.956 | 2.116 | 14.42 | 173.545 | 0.974 |