Adsorption Behaviors of Oxytetracycline onto Sediment in the Weihe River, Shaanxi, China

Table 2

Pseudo-first-order and pseudo-second-order rate constants for OTC adsorption onto sediment samples.

Sampling point	𝑄𝑒,exp (mg/kg)	Pseudo-first-order model			Pseudo-second-order model
		𝑅^2	𝑘1(1/h)	𝑄𝑒,cal (mg/kg)	𝑅^2	𝑘2 (kg/mg·h)	𝑄𝑒,cal (mg/kg)
1	2.2685	0.9916	0.1278	2.6773	0.8684	0.0064	5.4472
2	2.3577	0.9900	0.1353	2.9058	0.8452	0.0048	6.2909
3	2.4610	0.9860	0.1363	3.0801	0.8857	0.0046	6.5176