Table 1 Parameters for various adsorption kinetic models for Cd(II), Co(II), Zn(II) and Pb(II) sorption on MBC1
From: Investigations of Heavy Metal Ion Sorption Using Nanocomposites of Iron-Modified Biochar
Parameters | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
C 0 [mg/dm3] | q exp | PFO | PSO | IPD | |||||||
\( \log \left({\mathit{\mathsf{q}}}_{{}_{\mathsf{1}}}-{\mathit{\mathsf{q}}}_{{}_{\mathit{\mathsf{t}}}}\right)= \log \left({\mathit{\mathsf{q}}}_{{}_{\mathsf{1}}}\right)-\frac{\mathit{\mathsf{k}}{}_{{}_{\mathsf{1}}}\mathit{\mathsf{t}}}{\mathsf{2.303}} \) | \( \frac{\mathit{\mathsf{t}}}{{\mathit{\mathsf{q}}}_{\mathit{\mathsf{t}}}}=\frac{\mathsf{1}}{{\mathit{\mathsf{k}}}_{\mathsf{2}}{\mathit{\mathsf{q}}}_{\mathsf{2}}^{\mathsf{2}}}+\frac{\mathit{\mathsf{t}}}{{\mathit{\mathsf{q}}}_{\mathsf{2}}} \) | \( {\mathit{\mathsf{q}}}_{\mathit{\mathsf{t}}}={\mathit{\mathsf{k}}}_{\mathit{\mathsf{i}}}{\mathit{\mathsf{t}}}^{\mathsf{1}/\mathsf{2}}+\mathit{\mathsf{C}} \) | |||||||||
q 1 | k 1 | R 2 | q 2 | k 2 | h | R 2 | k i | C | R 2 | ||
Cd(II) | |||||||||||
50 | 8.40 | 1.40 | 0.017 | 0.945 | 8.43 | 0.067 | 4.773 | 1.000 | 0.358 | 6.079 | 0.878 |
100 | 15.29 | 6.08 | 0.010 | 0.966 | 15.25 | 0.009 | 2.070 | 0.998 | 1.126 | 6.389 | 0.953 |
150 | 18.65 | 7.14 | 0.012 | 0.958 | 18.70 | 0.009 | 2.985 | 0.998 | 1.423 | 7.914 | 0.851 |
200 | 20.65 | 8.33 | 0.014 | 0.820 | 20.70 | 0.007 | 2.801 | 0.996 | 1.033 | 11.3146 | 0.889 |
Zn(II) | |||||||||||
50 | 8.82 | 0.81 | 0.024 | 0.913 | 8.84 | 0.165 | 12.892 | 1.000 | 0.339 | 6.946 | 0.820 |
100 | 15.87 | 6.32 | 0.015 | 0.977 | 16.02 | 0.010 | 2.595 | 0.999 | 0.732 | 8.571 | 0.886 |
150 | 20.41 | 7.19 | 0.010 | 0.981 | 20.44 | 0.007 | 2.814 | 0.997 | 0.610 | 12.409 | 0.799 |
200 | 27.59 | 10.09 | 0.006 | 0.866 | 26.76 | 0.005 | 3.326 | 0.993 | 1.523 | 12.854 | 0.964 |
Co(II) | |||||||||||
50 | 7.71 | 2.97 | 0.011 | 0.970 | 7.71 | 0.019 | 1.116 | 0.998 | 0.390 | 3.843 | 0.922 |
100 | 12.12 | 6.55 | 0.015 | 0.950 | 12.29 | 0.009 | 1.314 | 0.998 | 0.662 | 4.728 | 0.968 |
150 | 14.84 | 7.82 | 0.012 | 0.928 | 14.95 | 0.006 | 1.299 | 0.993 | 0.254 | 7.044 | 0.979 |
200 | 17.32 | 10.70 | 0.009 | 0.935 | 17.36 | 0.003 | 0.947 | 0.979 | 0.688 | 6.110 | 0.735 |
Pb(II) | |||||||||||
50 | 8.74 | 0.02 | 0.061 | 0.586 | 8.74 | 3.780 | 288.864 | 1.000 | 0.008 | 8.704 | 0.575 |
100 | 16.92 | 0.07 | 0.013 | 0.892 | 16.92 | 0.882 | 252.606 | 1.000 | 0.006 | 16.849 | 0.692 |
150 | 23.75 | 0.02 | 0.008 | 0.447 | 23.74 | 4.056 | 286.943 | 1.000 | 0.025 | 23.648 | 0.479 |
200 | 33.13 | 0.15 | 0.020 | 0.633 | 33.14 | 0.872 | 957.123 | 1.000 | 0.371 | 31.713 | 0.721 |