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

Table 1

Physicochemical property of the sediment samples.

Sampling point	Organic carbon (weight%)	Moisture content (weight%)	Volume weight (g/cm^3)	Porosity (%)	pHZPC	Mechanical composition (weight%)
						Silt; <0.25 mm	Fine sand; 0.25–0.35 mm	Medium sand; 0.35–0.5 mm	Coarse sand; >0.5 mm
1	0.33	5.84	1.54	41.81	5.86	1.52	48.50	39.82	10.16
2	0.46	5.90	1.53	42.42	5.63	1.85	52.20	41.03	4.92
3	0.59	6.34	1.52	42.68	5.57	2.73	56.62	37.80	2.85