Green compact of incineration ashes of sewerage sludge and...

Details Green compact of incineration ashes of sewerage sludge and... Green compact of incineration ashes of sewerage sludge and...

C - Chemistry, Metallurgy

02

F

18/1120, 362/2

C02F 11/10 (2006.01) B09B 3/00 (2006.01)

Patent

CA 1320622

- 17 - Abstract According to the present invention, sewage sludge incineration ashes are compacted with pressure, but without additives, form a green compact having a bulk specific gravity of 0.9-2.5. Since the green compact has sufficient strength and reduced volume in comparison with the incineration ashes before compacting, it enables mass dumping without causing secondary pollution. Moreover, if the green compact is fired to have a bulk specific gravity of 1.4-3.5, both the volume and weight are reduced much more, realizing easy handling of the resulting burned product.

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