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October 2006

 

New facility to recycle bottom ash for concrete mix

AmerenUE’s Labadie Power Plant opened a concrete packaging facility that will recycle more than 60,000 tons of fly and bottom ash annually into two million bags of concrete mix.

The project results from a partnership between AmerenUE, Charah, Inc. and The Home Depot. The concrete mix will be prepared and packaged at the facility in fully recyclable two-handled plastic bags from Charah and distributed to Home Depot stores in St. Louis.

The 60,000 tons of ash being recycled represents half of Labadie’s annual production. Ultimately, AmerenUE officials hope to recycle all of the bottom ash.

Bottom ash and fly ash result from burning coal to generate electricity. The bottom ash settles out of the gas stream in the combustion process, while the fly ash is collected in precipitators. Labadie’s precipitators collect virtually all of the plant’s fly ash before it exits the plant’s stacks.

Ash is not classified as a hazardous waste by the EPA, and Ameren companies have recycled it in various applications, including blasting grit, roofing shingles, cement and concrete manufacturing, structural fill, and snow and ice control.

Charah annually processes 250,000 tons of bottom ash and markets it to the concrete block and concrete mix industries in North Carolina, South Carolina, Tennessee, Kentucky and Virginia.

Financial terms of the agreement were not disclosed.


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