Aluminum has left an indelible mark on the world — more than 3 billion tons of red mud, a waste product of the refining process, are currently stored in open-air ponds or mounds. But to Sumedh Gostu, co-founder and CEO of Fast Metals , there’s treasure in the caustic waste. “It is a very rich resource,” he told TechCrunch. “If you attack with the right chemistry, it can be very profitable.” Gostu thinks Fast Metals has found that chemistry, which just so happens to be partially comprised of ano…
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