Method for incineration of a sludge containing chromium substanc

Details Method for incineration of a sludge containing chromium substanc Method for incineration of a sludge containing chromium substanc

1975-08-19

1976-07-13

Sprague, Kenneth W.

Furnaces

With fuel treatment means

Preliminary refuse treatment means

110 1J, F23G 700

Patent

active

039687562

ABSTRACT:
There is disclosed a method for incineration of chromium-content-containing sludge and an apparatus therefor, in which the sludge is incinerated into ashes containing hexad chromium, which is, then, introduced into reducing gas to reduce the hexad chromium into triad chromium and, in turn, is cooled to stabilized the triad chromium, thereby to render to make the sludge harmless for discharging to the outside.

REFERENCES:
patent: 2119601 (1938-06-01), Raisch
patent: 2744477 (1956-05-01), Hartley et al.
patent: 3777680 (1973-12-01), Eck
patent: 3921543 (1975-11-01), Menigat et al.

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