Table 4 The fitting results based on the pseudo-first, pseudo-second order and intraparticle diffusion kinetic models
Hg + Cl | Hg + S | Hg + DOM | |
|---|---|---|---|
Pseudo first-order | |||
k1 (min− 1) | 0.0023 | 0.0023 | 0.0009 |
qe1 (μg g− 1) | 10.7 | 1.7 | 8.9 |
R2 | 0.9998 | 0.6886 | 0.9843 |
Pseudo second-order | |||
k2 (g μg−1 min− 1) | 0.00057 | 0.014 | 0.00022 |
qe2 (μg g−1) | 16.1 | 15.4 | 11.6 |
R2 | 0.9828 | 0.9998 | 0.8503 |
Intraparticle diffusion | |||
kp (μg g−1 min-0.5) | 0.40 | 0.14 | 0.25 |
R2 | 0.9980 | 0.7467 | 0.9508 |
Experimental qe (μg g−1) | 14.3 | 15.3 | 10.4 |