Metoda ieftină și ecologică de a face aur din deșeuri: Ce au descoperit cercetătorii de la ETH Zurich

Swiss researchers have developed an eco-friendly method to extract 22-carat gold from old electronic devices using whey from cheese production. This innovative process replaces harmful chemicals typically used in recycling, utilizing a protein structure that selectively captures gold ions. The method has shown potential for large-scale application, with estimates suggesting a significant return on investment. This discovery not only recycles valuable metals but also repurposes food industry waste, addressing the global issue of electronic waste.