Continuous Adsorption Modeling and Fixed Bed Column Studies: Adsorption of Tannery Wastewater Pollutants Using Beach Sand

Table 3

Percentage of elements found by X-ray energy dispersion EDX in natural and loaded sand.

Elements	Natural sand (NS)	Loaded sand (LS)
C	26.34	32.05
O	46.18	18.12
N	—	34.55
Na	3.42	1.45
Mg	0.94	0.45
Si	8.66	5.36
S	—	0.40
Cl	—	0.43
K	0.54	0.37
Ca	12.63	5.98
Cr	—	0.27
Fe	1.3	0.58
Total	100	100