Immobilization of Lead and Nickel Ions from Polluted Yam Peels Biomass Using Cement-Based Solidification/Stabilization Technique

Table 4

Fitting data of heavy metals adsorption onto yam peels according to kinetic models.

Kinetic model	Parameter	YP-Ni(II)	YP-Pb(II)
Pseudo-first order		13.18	19.82
		0.264	1.53
		1.055	0.40
Pseudo-second order		0.077	0.13
		13.32	19.97
		0.735	0.01
Elovich		3.719	11.78
		4.126E + 18	2.47E + 98
		0.805	0.15
Intraparticle diffusion		1.012	1.58
		220.17	491.75