A cleaner way to recycle circuit boards
Scientists in China have developed a way to recycle electronic circuits in old computers, mobile phones and other electronic devices in a way that is less harmful to the environment.
It can be used to reclaim valuable metals such as copper without releasing toxic fumes into the air the way current practices do.
Printed circuit boards (PCBs) are made of fibreglass and resin with electronic circuitry on top. The number of PCBs manufactured is growing by around 9% every year