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. 2021 Jan 13;8(1):201553. doi: 10.1098/rsos.201553

Table 7.

Adsorption kinetics parameters for the removal of MCPA.

pseudo-first order mg l−1 qe,exp (mg g−1) qe,cal (mg g−1) K1 (min)−1 R2 R2adj RMSE AIC
5 24.388 9.653 0.150 0.783 0.711 0.795 −0.851
10 48.379 23.203 0.170 0.735 0.647 0.802 −0.767
20 95.243 66.980 0.225 0.919 0.892 0.558 −4.396
30 142.568 84.208 0.224 0.821 0.761 0.749 −1.499
40 188.576 169.236 0.238 0.883 0.844 0.529 −4.917
50 233.576 170.187 0.253 0.833 0.824 0.644 −2.959
pseudo-second-order MCPA qe,exp (mg g−1) qe cal (g mg−1) K2 (g mg−1 min−1) R2 R2adj RMSE AIC
5 24.388 24.390 0.135 0.996 0.995 0.053 −71.372
10 48.379 48.309 0.059 0.995 0.994 0.026 −81.626
20 95.243 96.153 0.019 0.998 0.996 0.005 −108.511
30 142.568 142.857 0.020 0.996 0.995 0.009 −119.225
40 188.576 188.679 0.010 0.994 0.993 0.007 −126.536
50 233.576 232.558 0.010 0994 0.993 0.006 −131.463
intraparticle diffusion MCPA Kp (mg−1 g−1 min1/2) C
R2 R2adj RMSE AIC
5 2.006 8.658 0.573 0.431 7.904 22.120
10 3.956 17.01 0.575 0.433 15.536 28.877
20 8.110 30.922 0.632 0.509 28.263 34.861
30 11.756 50.189 0.578 0.438 45.828 39.695
40 16.026 58.755 0.650 0.533 53.666 41.274
50 19.538 79.755 0.600 0.466 72.833 44.328