Nachrichten werden geladen...
Every day, dust from huge spoil tips blows into the residential areas around Johannesburg in South Africa. What many people don't know: It contains uranium. Researchers from the Helmholtz-Zentrum Dresden-Rossendorf have investigated the extent to which children living near old gold mines are exposed. The hair analyses show clear differences to children from areas without mining.
Old cell phones and computers usually end up in the trash - but they contain valuable raw materials. A team from Freiberg has now developed a clever recycling process to recover gold, copper and rare earths. The six researchers from the Helmholtz Institute convinced an international jury and secured millions in funding. Their environmentally friendly process could help to reduce dependence on critical raw material imports.