byproducts

South Africa needs to refresh how it manages by-products from mining: A gold tailings dam under construction in South Africa. Author suppliedTo extract minerals from host rocks, mines grind down rock into fine sand. Once the mineral is extracted, most of this fine sand remains as a by-product called tailings. Every mining operation produces a unique tailings stream and local … [Read more...] about South Africa needs to refresh how it manages by-products from mining | The Conversation