Aruncăm aur la gunoi fără să știm: calculatoarele vechi ascund o mică avere. Cum au recuperat cercetătorii 450 mg din 20 de plăci de bază

Researchers at ETH Zurich have developed an innovative method to recover gold from electronic waste using whey protein. The process involves extracting metals from old computer circuit boards and transforming whey proteins into nanofibers that act as a sponge to absorb gold ions. This method is more efficient and environmentally friendly compared to traditional techniques. The experiment yielded a nugget containing 91% gold, highlighting the potential of urban mining. With electronic waste projected to increase significantly, this approach could provide a sustainable solution for recovering valuable metals. Future research will explore broader applications and other protein-rich waste materials.