04246099 is referenced by 48 patents and cites 20 patents.

A process for digestion of sludge wherein the sludge is oxygenated in a first digestion zone at temperature of from 35.degree. to 75.degree. C. to partially reduce the biodegradable volatile suspended solids content of the sludge. The partially stabilized sludge is anaerobically digested in a covered second digestion zone at temperature of from 25.degree. to 60.degree. C. to further reduce the biodegradable volatile suspended solids content of the sludge, to less than about 40% of the biodegradable volatile suspended solids content of the sludge introduced to the first digestion zone.

Title
Aerobic/anaerobic sludge digestion process
Application Number
766770
Publication Number
4246099
Application Date
April 6, 1979
Publication Date
January 20, 1981
Inventor
Ladistas C Motsch
Amherst
NY, US
Michael S Gould
Dakar
SN
Agent
Steven J Hultquist
Assignee
Union Carbide Corporation
NY, US
IPC
C02C 1/14
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