Statistical Optimization of Bioleaching for Simultaneous Recovery of Cu, Sn, Pb, and Zn from Computer-Printed Circuit Boards

Table 3

Metal composition results in a sample.

S. No.	Metal content in PCBs	Initial value (wt %)
1	Copper	13.15
2	Tin	4.24
3	Lead	2.78
4	Zinc	1.16
5	Other metals (Mg, Br, Fe, etc.)	2.55
6	Total	23.88