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STE. GENEVIEVE, MS: LafargeHolcim has received its first barge shipment of 2,000 tons of coal ash from CenterPoint Energy’s coal-fired Indiana powerplant for recycling into cement.

Together with waste management provider Geocycle, the three companies plan to remove, process, transport, store and recycle six million tonnes of coal ash as a replacement for naturally-sourced clay and sand.

Used as fuel for 25 percent of US electricity generation, coal creates fly ash and bottom ash waste, a sandy sludge.

According to the American Coal Ash Association, only 52 percent of the 78.6 million tons of coal ash produced in electricity generation was reused in 2019. The remainder was dumped in landfills or retention ponds with an historic total of two billion tons.

To mitigate environmental risks, federal regulations are now mandating the closure of ash ponds to encourage recycling.

“This significant circular-economy relationship with CenterPoint Energy is a powerful example of how our Geocycle recycling business seeks out innovative solutions to turn our nation’s ecosystem challenges into opportunities,” commented Sophie Wu, Head of Geocycle North America.

Since 2009, Geocycle has supplied nearly 1.5 million tons of dry fly-ash waste from CenterPoint Energy’s A.B. Brown, F.B. Culley and Warrick coal-fired power stations for reuse at the Ste. Genevieve cement plant.

A subsidiary of Holcim, and part of a global network of 80 waste pre-treatment facilities and 180 cement plants, the company specialises in recovering and recycling materials from waste. Last year this resulted in over 280,000 tons of CO2 savings.

CenterPoint Energy provides energy to over seven million customers in Arkansas, Indiana, Louisiana, Minnesota, Mississippi, Ohio, Oklahoma and Texas.
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