The benefit of two new and innovative practices in managing ash from waste-to-energy (WTE) facilities has been documented in a recent report issued by the Solid Waste Association of North America’s (SWANA) Applied Research Foundation.
These two new practices include enhanced recovery of a greater range of metals smaller than 12 millimeters (about 0.47 inches) from WTE bottom ash and the permitted reuse of bottom ash in road construction projects.
Of the nearly 30 million tons of municipal solid waste processed by WTE facilities in the United States each year, about 7 million tons is left as bottom ash, non-combustible materials, and solids from the air pollution control systems (fly ash). That material is collective referred to as WTE ash. read more >>