Green compact of incineration ashes of sewerage sludge and its b

Details Green compact of incineration ashes of sewerage sludge and its b Green compact of incineration ashes of sewerage sludge and its b

1989-09-29

1991-03-05

Epstein, Henry F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

264 291, 264DIG69, 428 2, C10L 546

Patent

active

049977113

ABSTRACT:
According to the present invention, incineration ashes of sewerage sludge are compacted with pressure, but without additives, to have the 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 the bulk specific gravity of 1.4-3.5, both the volume and weight are reduced much more, realizing easy handling of the resulted burned product.

REFERENCES:
patent: 3801358 (1974-04-01), Steinberg et al.
patent: 3991005 (1976-11-01), Wallace
patent: 4242220 (1980-12-01), Sato

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