Zeolite Application in Wastewater Treatment

Table 7

Comparison of dye removal by different zeolites, along with experimental conditions and adsorption and kinetic models.

Dye	Dye type	Zeolite	(°C)	Contact time	Concentration (mg·L^-1)	S/L ratio (g·L^-1)	pH	Sorption capacity (mg·g^-1)	Adsorption isotherm model	Adsorption kinetic model	References
Safranine O	Cationic	Clinoptilolite	25	1 h-40 d	1754.0	5	6.4	34.7	—	—	[97]
		Analcime+sodalite						15.7
Methylene blue		H-USY	25	2 h	50-150	2	8	59.9	Langmuir	Pseudo-second-order	[99]
		Clinoptilolite	30-50	—	3.2-32	0.25	—	16.7-20.2	Langmuir	Pseudo-second-order	[98]
		Clinoptilolite	30	72 h	10-1300	2	5	82.0	Sips	—	[169]
		Erionite						88.0
		Magnetic clinoptilolite	25	45 m	25-20	—	7	52.0	Freundlich	—	[100]
Rhodamine B		Clinoptilolite	30-50	—	4.8-47.9	0.25	—	9.3-12.4	Langmuir	Pseudo-second-order	[98]
Crystal violet		Zeolite X	50	1 h	100	1	9	234.5	Langmuir	Pseudo-second-order	[105]
Brilliant green		Zeolite Y	25-55	20 min	100-800	0.4	6	409.0	Langmuir	Pseudo-second-order	[101]
Basic violet 3		Clinoptilolite	30	72 h	10-1300	2	5	98.0	Sips	—	[169]
		Erionite						105.0
Amido black 10B	Anionic	Zeolite X	25	6 h	5-50	—	4	1.4	Freundlich	Pseudo-first-order	[104]
Acid blue 25		Clinoptilolite	30	72 h	10-1300	2	5	<0.1	Sips	—	[169]
		Erionite						<0.1