Adsorption of Cu (II) and Cd (II) from Wastewater by Sodium Alginate Modified Materials

Table 2

Elemental mass ratio before and after SACL adsorption in EDS spectrum.

Element	Mass ratio (%)
Before adsorption
C	47.6
O	37.6
Si	1.6
Ca	6.4
Na	4.0
Cu	—
Cd	—
After adsorption
C	38.9
O	37.2
Si	2.7
Ca	2.6
Na	—
Cu	9.7
Cd	6.1