Did you know that you can extract millions worth of gold from electronic waste? Medium-sized companies engaged in such recycling can earn up to $85,000 per day. Globally, 53.6 million tons of electronic waste are generated annually, and this number continues to rise, even encouraging individual people to engage in waste processing. Scientists have succeeded in developing a unique sponge made from cheese whey waste, which can absorb metals from e-waste – particularly gold – and can recover gold worth $50 for every dollar spent on the recycling process.