Characterization, Renovation, and Utilization of Water from Slurry Transport Systems

摘要

Laboratory studies indicated that water of impaired quality could be purified en route in a coal slurry pipeline, taking advantage of the long contact time and high mixing rate. Upon arrival at a powerplant the slurry would be burned, destroying the organics or retaining them with the coal ash. Purified water could be reclaimed. A coal gasification apparatus was used to prepare water contaminated with organic byproducts, nonactivated char, and coal ash. Removals of heavy metals (Cu, Ni, Pb, Cd, and Zn) were greatest (94-100%) with aged coal (surface oxidized).