Adsorption of Heavy Metals in Contaminated Water Using Zeolite Derived from Agro-Wastes and Clays: A Review

Table 10

Summary of adsorption kinetics on synthetic zeolites.

Zeolite	Raw material	Metal ion	Pseudo-first order		Pseudo-second order		References
				R ^2		R ^2
ZSM-11	Rice husk ash	Pb^2+	1.4754	0.8503	3.3367	0.6912	[246]
		Zn^2+	1.0859	0.9929	1.7050	0.9662
Zeolite A	Rice hush and aluminium cans	Co^2+	65.28	0.9418	89.30	0.9529	[247]
		Cu^2+	65.23	0.9286	94.57	0.9565
Faujasite		Co^2+	62.14	0.9518	83.06	0.9566
		Cu^2+	67.16	0.9268	92.03	0.9451
Merlinoite	Sugarcane bagasse ash and kaolin	Pb^2+	127.17	0.8430	250.0	0.9999	[248]
Linde F (K)	Fly ash	Cu^2+	3.2319	0.8271	21.598	0.9983	[249]
		Cd^2+	1.6945	0.9867	22.221	0.9998
		Pb^2+	2.098	0.9337	49.751	0.9982
		Ni^2+	1.9823	0.8561	12.821	0.9998
Zeolite NaP	Aluminium and fumed silica wastes	Ni^2+	45.15	0.8841	45.15	0.9846	[250]
		Cu^2+	66.75	0.8858	66.75	0.9934