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. 


Related articles

Charah inaugurates slag, pozzolan finishing technology at N.Y. terminal 

Charah acquires SCB ash beneficiation, mineral grinding technologies