Investigating the Adsorption of Humic Acid from Water Using CTS/PAM and CTS/PAM/EDTA Adsorbents

Table 1

Kinetic model parameters for HA adsorption process for both adsorbents.

Kinetic models	Parameters	CTS/PAM	CTS/PAM/EDTA
Pseudo-first-order	(g·mg^−1·min^−1)	0.0132	0.0367
	(mg·g^−1)	118.64	111.63
		0.942	0.971
		106.14	104.54
Pseudo-second-order	(g·mg^−1·min^−1)	7.56 × 10^–5	3.43 × 10^–4
	(mg·g^−1)	154.01	127.29
		0.918	0.939
		106.14	104.54
Intraparticle diffusion	(g·mg^−1·min^−1/2)	8.76	19.42
		0.912	0.954
	(mg·g^−1)	66.21	120.41
	C (mg·g^−1)	−16.89	−30.02