From: Equilibrium, kinetics, and thermodynamics of batch adsorption of Mn(II) ions on blast furnace slag (BFS) and kaolin (KGA)
External diffusion
Internal diffusion
Cext
Kint
(min−1)
R2
Cint
Kext
(mg/g.min)
KGA
3.48
0.032
0.99
6.97
4.41
0.98
BFS
3.66
0.042
2.75
4.36