Incineration of lime-conditioned sewage sludge with high sulfur

Details Incineration of lime-conditioned sewage sludge with high sulfur Incineration of lime-conditioned sewage sludge with high sulfur

1977-01-03

1978-07-25

Sprague, Kenneth W.

Furnaces

Process

Treating fuel constituent or combustion product

110221, 110245, 44 1D, F23G 502

Patent

active

041022777

ABSTRACT:
Sewage sludge is dewatered with the aid of lime and then incinerated using high sulfur fuel. During incineration the lime reacts with the sulfur in the fuel and with oxygen to form the solid CaSO.sub.4 for disposal and thus prevent formation of the pollutant, SO.sub.2 gas. High sulfur coal may be crushed and used as an additional filter aid or sludge conditioner and the serve as the auxiliary fuel during incineration.

REFERENCES:
patent: 3717700 (1973-02-01), Robison et al.
patent: 3907674 (1975-09-01), Roberts et al.
patent: 3941552 (1976-03-01), Cottell
patent: 3949684 (1976-04-01), Copeland

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