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Fly ash processing method makes bayou debut

Sources: Charah Solutions Inc.; CP staff

Concurrent with deploying slag cement finishing technology gained in its mid-2018 acquisition of SCB International, Charah Solutions has installed companion beneficiation equipment at its Sulphur, La., terminal to improve the overall quality of ASTM C618-grade material output. Dubbed MP618 Multi-Process, the SCB-modeled method reduces loss on ignition, ammonia, activated carbon and moisture in fly ash.

“The launch of the MP618 technology is a significant milestone for Charah Solutions and a game changer for the beneficiation of fly ash,” says CEO Charles Price. “Our utility customers now have an innovative, cost-effective solution that doesn’t require a significant capital investment or increase costs to rate payers. Additionally, we now expect to be able to provide a more reliable stream of fly ash to our customers.”

The proven thermal beneficiation technology provides concrete producers and their customers a reliable source of high-quality Class F fly ash to meet a growing number of construction projects in the greater Lake Charles/Sulphur region, he adds. The Sulphur terminal is Charah Solutions’ second barge-supplied location in southern Louisiana; a sister facility in LaPlace supplies Louisiana, Mississippi and Alabama customers. 

MP618 Multi-Process allows for beneficiation of both wet and dry fly ash and offers what the company contends are important advantages over competing technologies: It has a significantly lower cost profile; an efficient footprint with self-contained environmental controls that can be deployed in months versus years; and, a modular design that can be scaled up or down to increase production based on market demand. With the functionality to process a variety of raw feeds, MP618 equipment can be installed at operating or idled coal-fueled generating stations, regardless of whether the fly ash is current production or legacy stock in ponds or landfills. 

 

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