Method of and apparatus for the treatment of sludge from a...

Details Method of and apparatus for the treatment of sludge from a... Method of and apparatus for the treatment of sludge from a...

C - Chemistry, Metallurgy

02

F

362/63, 261/79

C02F 1/66 (2006.01) C02F 11/14 (2006.01)

Patent

CA 1228872

ABSTRACT OF THE DISCLOSURE Desulfurization sludge from a flue-gas scrubber operating with calcium-containing additives is dewatered in a thin layer with precipitatable impurities in the liquid phase being precipitated out by neutralization and collected in a thin layer which it then rinsed. The presence of these precipitated impurities on the gypsum which is recovered by this process has not been found to be detrimental to the use of it as a construction material.

478852

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