Mining PCBs wouldn't be my cup of tea. But depending on whose assay numbers you believe, there's something like a quadrillion dollars worth of gold dissolved in the world's oceans (at parts per ...

ETH Zurich researchers have developed a sustainable method to recover gold from electronic waste. The method uses a sponge made from denatured whey proteins that selectively adsorb gold ions. The ...

An interdisciplinary team of experts in green chemistry, engineering and physics at Flinders University in Australia has developed a safer and more sustainable approach to extract and recover gold ...

Phase 4A column leach testing on the Rangefront Zone included 24 variability composites from large-diameter (“PQ”) drill core representing the range of rock types and gold (“Au”) grades encountered in ...