KINGSTON – Tiny pellets about the size of BBs will collect at the bottom of an oil-fired dryer at the rate of probably a ton a day when the city begins converting sewage sludge to fertilizer next year ...

The Evolution of Biomass Engineering and Global Expansion The journey of BISON MACHINE, formerly known as the Hualong Machine Factory, illustrates the trajectory of the biomass industry over the last ...

Cliffs Natural Resources officials said Wednesday the company has been testing new, direct-reduced iron taconite pellets at two of its Minnesota plants -- Northshore Mining in Silver Bay and United ...