Table 4.

PSO kinetic models’ parameters (initial concentration of 10 mg/L, pH 5, T = 25 °C, and adsorbent loading of 10 g/L)

Concentration	Parameter	Efavirenz	Nevirapine
5 mg/L	k2 (g/mg·h)	0.073	0.016
	qe (calculated)(mg/g)	0.647	1.23
	qe (experimental)(mg/g)	0.362	0.42
	R2	0.998	0.997
10 mg/L	k2 (g/mg·h)	0.034	0.028
	qe (calculated)(mg/g)	1.19	1.32
	qe (experimental)(mg/g)	0.629	0.748
	R2	0.996	0.995
20 mg/L	k2 (g/mg·h)	0.017	0.006
	qe (calculated)(mg/g)	1.62	2.81
	qe (experimental)(mg/g)	0.64	0.824
	R2	0.997	0.997