Process and apparatus for fixing, encapsulating, stabilizing and

Details Process and apparatus for fixing, encapsulating, stabilizing and Process and apparatus for fixing, encapsulating, stabilizing and

1988-08-30

1989-04-18

Favors, Edward G.

Furnaces

With fuel treatment means

Means for liberating gas from solid fuel

110210, 110224, 110238, 110259, 427228, F23G 512

Patent

active

048216534

ABSTRACT:
Heavy metals and compounds thereof and other toxic materials in industrial wastes, sludges, soils, incinerated ashes and the like are fixed and stabilized in a char residue, obtained by critical region pyrolyzing techniques and appropriate proportions of carbonaceous materials intimately mixed with the sludge, to encapsulate the heavy metals with carbon bonded thereto which effectively detoxifies the residue and renders it immune to any substantial leaching out or later exposure to the toxic metals, such that the same is environmentally safe for such uses as landfill and the like.

REFERENCES:
patent: 4086319 (1978-04-01), Jones
patent: 4108677 (1978-08-01), Valigg
patent: 4142912 (1979-03-01), Young
patent: 4152470 (1979-05-01), Steinegger
patent: 4215989 (1980-07-01), Cartier
patent: 4332584 (1982-11-01), Muralidhara
patent: 4732092 (1988-03-01), Gould
patent: 4751887 (1988-06-01), Terry et al.
patent: 4759300 (1988-07-01), Hansen et al.

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