Adsorption kinetic parameters of naphthalene onto HC and HMAC at 303 K.
Models | HC | HMAC | |||||||||
C 0 (mg L−1) | 10 | 20 | 30 | 40 | 50 | 10 | 20 | 30 | 40 | 50 | |
q exp (mg g−1) | 11.4 | 29.1 | 52.9 | 65.3 | 81.9 | 62.3 | 120.9 | 158.9 | 193.8 | 223.1 | |
PFO | q e,cal (mg g−1) | 7.9 | 24.2 | 23.3 | 32.6 | 38.1 | 50.1 | 95.5 | 110.3 | 115.2 | 133.4 |
K 1 (min−1) | 0.1559 | 0.2695 | 0.2510 | 0.2347 | 0.2706 | 0.1884 | 0.1198 | 0.2524 | 0.0958 | 0.1571 | |
R 2 | 0.95 | 0.91 | 0.87 | 0.97 | 0.91 | 0.97 | 0.92 | 0.90 | 0.99 | 0.98 | |
RMSE | 9.5 | 12.3 | 17.1 | 18.9 | 15.4 | 14.5 | 13.8 | 12.0 | 10.0 | 10.8 | |
PSO | q e,cal (mg g−1) | 12.0 | 31.1 | 53.8 | 66.7 | 83.3 | 64.7 | 129.6 | 161.3 | 204.1 | 225.6 |
K 2 | 0.0222 | 0.0075 | 0.0163 | 0.0100 | 0.0104 | 0.0032 | 0.0012 | 0.0074 | 0.0012 | 0.0014 | |
R 2 | 0.99 | 1.00 | 0.99 | 1.00 | 1.00 | 1.00 | 0.99 | 1.00 | 0.99 | 1.00 | |
q e,cal (mg g−1) | 11.7 | 32.5 | 57.0 | 68.5 | 88.1 | 65.9 | 122.2 | 167.0 | 185.5 | 221.4 | |
RMSE | 3.1 | 3.3 | 3.9 | 5.2 | 4.5 | 3.5 | 3.2 | 6.7 | 5.5 | 6.8 | |
Elovich | (1/β)ln(αβ) (mg g−1) | 3.85 | 6.74 | 29.88 | 35.56 | 45.80 | 14.70 | 23.14 | 106.16 | 79.04 | 100.14 |
1/β | 1.8 | 5.9 | 6.2 | 7.5 | 9.7 | 11.7 | 22.6 | 13.9 | 24.3 | 27.7 | |
R 2 | 0.94 | 0.94 | 0.94 | 0.96 | 0.95 | 0.97 | 0.97 | 0.96 | 0.85 | 0.88 | |
RMSE | 10.9 | 11.3 | 14.6 | 11.0 | 16.7 | 15.5 | 13.1 | 16.2 | 16.0 | 16.1 |