Table 1 Elemental composition of printed circuit board
S. no | Elements | Concentration (mg/g) | After bioleaching (mg/g) |
|---|---|---|---|
1 | Al | 2.907 | 0.918 |
2 | Ca | 1.384 | 0.623 |
3 | Cu | 97.663 | 28.83 |
4 | Cd | 0.211 | 0.098 |
5 | Fe | 18.309 | 10.39 |
6 | Ni | 1.231 | 0.838 |
7 | Zn | 3.226 | 0.716 |
8 | Ag | 25.8 | 11.09 |
9 | Pb | 18.262 | 10.365 |
10 | Hg | 17.56 | 9.43 |