What is the hardest chemical to treat in waste water?



  1. 0 Votes

    Heavy metals and sulfur from mining runoff are especially difficult to treat. Abandoned mines in the U.S. have left polluted water and done billions of dollars in damage to nearby habitats. The U.S. Bureau of Mines estimates more than $1 million is spent each day by the mining industry to treat acidic mine water, and new technologies to do so safely are being researched.

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