C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
23/115
C02F 11/00 (2006.01) C02F 9/00 (2006.01) C02F 1/28 (2006.01) C02F 1/66 (2006.01)
Patent
CA 1234477
PHA 21220 7 ABSTRACT OF THE DISCLOSURE Method for treatment of impounded material (sludges) from the chemical treatment of spent sulfuric acid with lime. A method and apparatus for treating sludges that have resulted from chemical treatment of sulfuric acid wastes with lime are shown. The sludges are subjected to fluidization, dilution, and acidification to solubilize solids, clarification to concentrate solids for reacidi- fication and produce a supernatant for carbon adsorption to remove organics and color, with regeneration of spent carbon including incineration of solids, and finally incineration of the spent carbon and all other remaining unsolubilized solids.
490030
American Color And Chemical Corporation
Van Steinburg C.e.
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