Determination of metallic and polymeric contents in electronic waste materials and evaluation of their hydrometallurgical recovery potential

摘要: The sustainable development of electronic and electrical industries involves not just mere effective utilization energy at all stages production, but also the recycling end-of-life electric components. Rapid in manufacturing technologies, together with increased consumer demand, has revolutionized societal investments infrastructures for rapid growth global commerce. Nevertheless, shortening life expectancy, pushed by fast innovation, miniaturization, value, resulted a significant accumulation waste (e-waste), causing increasing environmental concerns. This study gives a detailed insight into potential different categories e-waste. standard sieve method was used to screen shredded materials, Rosin–Rammler model evaluate particle size distributions. wt% Cu user scrap highest 34.6% observed that content reduced decreasing size. Au Ag contents were as high scrap, it found be several times higher laptop shred (Au) motherboard (Ag). Identified peaks indicate existence polymers such acrylonitrile butadiene styrene (ABS), high-density polystyrene (HIPS), polycarbonate (PC), poly(p-phenylene oxide) (PPC). TGA analysis indicated maximum loss occurs temperature range 285–290 °C, which corresponds degradation of commonly polymers, analyzed from FTIR analysis. SEM micrographs scraps material is heterogeneous fibrous particles varying shapes, sizes, and texture.