Comparative leaching experiments were carried out using different acidic media: HNO3, H2SO4, HCl, HNO3 + H2O2 with at least 20% w/w acid concentration. Kinetic studies were performed from 0.5 h up to 24 h.
The leached PCBs deriving from leaching treatment were grinded and subject to further leaching experiments with HNO3, in order to recover the Cu contained inside the plastic/resin slices. A comparison among different operation conditions was carried out, in terms of acid concentration