Ash Management & Safe Basin Closure - Duke EnergyCoal Ash 101. Coal ash is a nonhazardous substance, as ruled by the U.S. Environmental Protection Agency. Learn More · Safe Basin Closure. State and federal laws outline two main options to close ash basins. Learn More . Safe Recycling.coal ash beneficiation and recycle options,Could Concrete Help Get Coal Ash Out of Neighborhoods .Feb 10, 2017 . Coal ash can also be recycled from impoundment ponds or landfills. . it's a more sustainable option than leaving it in the impoundments," he.
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