| Biochar | Pseudo-first-order kinetic model | Pseudo-second-order kinetic model | ||||
| Qe (mg/g) | K1/h−1 | R2 | Qe (mg/g) | K2/h−1 | R2 | |
| 0.2 PB | 6.95 | 0.10 | 0.983 | 7.32 | 0.01 | 0.965 |
| 0.3 PB | 6.86 | 0.12 | 0.982 | 7.28 | 0.02 | 0.978 |
| 0.4 PB | 6.67 | 0.09 | 0.9787 | 7.05 | 0.02 | 0.961 |