'Scrubber sludge' finds a potent market
Some U.S. electric utilities are spinning gold out the gunk they once spewed in the air. To comply with the 1970 Clean Air Act, power companies have been "scrubbing" the smoke coming out of their
Some U.S. electric utilities are spinning gold out the gunk they once spewed in the air. To comply with the 1970 Clean Air Act, power companies have been "scrubbing" the smoke coming out of their