Table 1 Energy dispersive X-ray analysis (EDX) characterization of egg shell waste (ESW) before water treatment and potentially toxic elements/metals (PTEs) absorbance
Element | Atomic number | Mass (%) | Mass normal (%) | Atom (%) |
|---|---|---|---|---|
Oxygen | 8 | 29.71 | 49.4 | 63.29 |
Carbon | 6 | 4.180 | 6.95 | 11.86 |
Nitrogen | 7 | 1.570 | 2.61 | 3.81 |
Calcium | 20 | 24.49 | 40.8 | 20.83 |
Magnesium | 12 | 0.14 | 0.24 | 0.20 |
Sulfur | 16 | 0.01 | 0.01 | 0.01 |
Potassium | 19 | 0.08 | 0.00 | 0.00 |
Iron | 26 | 0.16 | 0.00 | 0.00 |
| Â | Â | 60.09 | 100.00 | 100.00 |