Opportunities and Challenges in Deep Mining: A Brief ...
Coal prep plants, which process coal from deep mines, too, produce vast quantities of liquid waste—coal sludge—and are also a source of airborne coal dust and particulates, a potential health threat to workers and local residents. Overloaded coal trucks are a perpetual menace on the narrow, winding roads of the Appalachian coalfields. From 2000 to 2004, there were more than seven hundred ...
