Table 2.

Pseudo first order, pseudo second order & intra-particle diffusion rate for adsorption of Hg(II) on algal Bioadsorbant.

Constants	Initial concentration (mg/L)
	50	10	200
qe exp. (mg/g)	38.02	76.39	132.98
Pseudo first order
qe cal. (mg/g)	21.71	46.75	81.49
k1 (min−1)	0.024	0.034	0.028
R2	0.9876	0.9652	0.9882
Pseudo second order
qe cal. (mg/g)	36.69	75.41	141.46
k2 (g mg −1min−1)	0.094	0.083	0.068
R2	0.9956	0.9866	0.9909
Intraparticle diffusion
Kid (mg g min−1)	0.024	0.034	0.028
R2	0.876	0.803	0.890