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Table 4

Adsorption capacity of cationic surfactant modified zeolite for different pollutants

Surfactant	Pollutants	Adsorbent capacity (mg/g)	Temperature (°C)	pH	Adsorption isotherm	References
DAAO	Anionic dye congo red	69.9–58.8	20–40	6.0	Langmuir	Liu et al. (2014)
HDTMA	As	1.6	23	7.0	Freundlich	Chutia et al. (2009)
	EDTA	159.8	25	7.5	Freundlich	Khazaei et al. (2015)
	Cr	5.2	25	6.0	Langmuir	Ramos et al. (2008)
	Phosphorus	0.2	25 ± 1	6.9	Langmuir	Dionisiou et al. (2013a)
CTMAB	Sodium dodecyl benzene sulfonate	18.5	25	6.0	Langmuir	Taffarel & Rubio (2010)
CTMAB	Pb	3.3	35	–	Langmuir	Ren et al. (2016)
CPB	Tannic acid	111.0	30	5.5	Langmuir	Lin et al. (2011)
SDS	NOM	111.2	25	5.0	Langmuir	Mahvi et al. (2016)

Surfactant	Pollutants	Adsorbent capacity (mg/g)	Temperature (°C)	pH	Adsorption isotherm	References
DAAO	Anionic dye congo red	69.9–58.8	20–40	6.0	Langmuir	Liu et al. (2014)
HDTMA	As	1.6	23	7.0	Freundlich	Chutia et al. (2009)
	EDTA	159.8	25	7.5	Freundlich	Khazaei et al. (2015)
	Cr	5.2	25	6.0	Langmuir	Ramos et al. (2008)
	Phosphorus	0.2	25 ± 1	6.9	Langmuir	Dionisiou et al. (2013a)
CTMAB	Sodium dodecyl benzene sulfonate	18.5	25	6.0	Langmuir	Taffarel & Rubio (2010)
CTMAB	Pb	3.3	35	–	Langmuir	Ren et al. (2016)
CPB	Tannic acid	111.0	30	5.5	Langmuir	Lin et al. (2011)
SDS	NOM	111.2	25	5.0	Langmuir	Mahvi et al. (2016)