Redemption for a toxic mineral

Lead is useful, valuable and toxic but, as Tim Johnson explains, plasma technology is one way to treat lead-containing wastes to ensure slag is inert, non-leachable and can be used either as a secondary aggregate or sent safely to landfill

by Tim Johnson
Lead is known for having a low melting point. Photograph Tetronics
Lead is known for having a low melting point. Photograph Tetronics

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