Research Article
Adsorption of Nitrate onto ZnCl2-Modified Coconut Granular Activated Carbon: Kinetics, Characteristics, and Adsorption Dynamics
Table 2
Parameters for different adsorption kinetic models.
| (mgN·L−1) | (mgN·g−1) | Pseudo-first-order kinetic model | Pseudo-second-order kinetic model | Intraparticle diffusion model | (mgN·g−1) | (h−1) | R2 | (mgN·g−1) | (g·(mgN·h)−1) | R2 | (mgN·(g·min1/2)−1) | | R2 |
| 10 | 0.47 | 0.33 | 0.040 | 0.995 | 0.51 | 0.202 | 0.995 | 0.044 | 0.117 | 0.966 | 20 | 0.93 | 0.46 | 0.014 | 0.413 | 0.72 | 0.380 | 0.977 | 0.056 | 3.175 | 0.593 | 50 | 1.81 | 1.64 | 0.049 | 0.910 | 2.04 | 0.037 | 0.981 | 0.190 | 0.293 | 0.966 | 100 | 2.49 | 1.31 | 0.018 | 0.664 | 2.32 | 0.057 | 0.985 | 0.184 | 0.769 | 0.793 |
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