Recovery of base and precious metals from PCBs (Printed Circuit Boards) in waste electrical and electronic equipment (WEEE)

Natural minerals are a powerful tool in politics when some have major role production. Its depletion is now hot topic worldwide. Thus, the safety of environment, natural surface water, groundwater and protection soils from chronic contamination by metallic inorganic elements global concern. Indeed, industrialization development led to generation huge varied amounts waste, including electronic waste (e-waste), which released into environment. Although e-waste classified as hazardous, most it not recycled developed countries with strict environmental legislation send their developing where regulations lax. These devices components after being used simply dumped environment due lack treatment recycling strategy. As result, they become threat ecosystems humans. African among vulnerable nations. But unfortunately ignored underestimated. To date, there no unit (factory) mainly Republic Benin. In response this challenge, study explored different techniques for electrical/electronic equipment order develop new environmentally friendly approach future work, extraction usual valuable contained (printed circuit boards) For purpose, bibliographic research was carried out 20 April 16 October 2021. The results obtained allowed us identify advantages disadvantages existing methods.