Process to stabilize scrubber sludge

Details Process to stabilize scrubber sludge Process to stabilize scrubber sludge

F - Mech Eng,Light,Heat,Weapons

23

G

F23G 7/00 (2006.01) C22B 1/14 (2006.01)

Patent

CA 2093194

A process for stabilizing sludge containing flyash and calcium sulfate formed by a lime or limestone scrubber increases the sludge particles to a size at which leaching of toxic metals from the particles no longer occurs at toxic levels. The sludge is dewatered and injected into the furnace in a manner to cause the flyash to soften and stick together. The agglomerated particles then fall into a bottom ash pit for removal as a common waste.

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