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

1978-01-13

1979-09-25

Sprague, Kenneth W.

Furnaces

Process

Incinerating refuse

110245, F23G 700

Patent

active

041686705

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 then serve as the auxiliary fuel during incineration.

REFERENCES:
patent: 3759196 (1973-09-01), Spaite
patent: 3888194 (1975-06-01), Kishigami et al.
patent: 3941552 (1976-03-01), Cottell
patent: 3949684 (1976-04-01), Copeland
patent: 4102277 (1978-07-01), Wall

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