Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Method for incinerating waste sludges

Patent ·
OSTI ID:5838273

Dewatered sewage sludge (i.e. sewage sludge containing e.g. 75% water when dewatered) is incinerated when mixed with coal fines recovered from a wet benification process for coal, the coal fines being in the form of either coal filter cake or ex-lagoon sludge. If the coal fines are added to the sewage sludge before or during dewatering of the latter by filtration, the coal acts as a filter aid. Autothermic combustion of the mixture can be obtained.

Assignee:
Esmil-Envirotech, Ltd.
Patent Number(s):
US 4159684
OSTI ID:
5838273
Country of Publication:
United States
Language:
English

Similar Records

Coal as a supplemental heat source in sewage sludge incineration
Conference · Sun Dec 31 23:00:00 EST 1978 · J. - Water Pollut. Control Fed.; (United States) · OSTI ID:6217255

Improving sludge incineration and vacuum filtration with pulverized coal
Journal Article · Wed Nov 30 23:00:00 EST 1977 · J. Water Pollut. Control Fed.; (United States) · OSTI ID:5152623

Potential for conversion of an existing incinerator to waste-to-energy and codisposal service
Conference · Thu Dec 31 23:00:00 EST 1981 · Proc., Natl. Waste Process. Conf.; (United States) · OSTI ID:6529530