C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/9
C02F 11/02 (2006.01) C02F 3/00 (2006.01) C02F 3/12 (2006.01) C02F 3/26 (2006.01) C02F 3/30 (2006.01)
Patent
CA 1140686
CONTROL OF SLUDGE TEMPERATURE IN AUTOTHERMAL SLUDGE DIGESTION Abstract of the Disclosure A process for controlling the autothermal aerobic digestion of sludge wherein sludge is mixed with an oxygen-containing gas in a covered digestion zone to form an aerated mixed liquor. The oxygen-containing gas is introduced into the mixed liquor being aerated at an oxygen concentration of at least 20% by volume, in sufficient quantity and rate to dissolve at least 0.03 pounds of oxygen per pound of total volatile solids content in the sludge introduced into the covered aerobic digestion zone, and the volatile solids content of the aerated mixed liquor is maintained at a high level. Temperature of the aerated mixed liquor is sensed, and the rate of introducing oxygen- containing gas into the aerated mixed liquor is controlled in response to the temperature sensing by increasing the rate of introduction of the oxygen-containing gas when temperature of the aerated mixed liquor decreases and by decreasing the rate of introduction of oxygen-containing gas when the temperature of the aerated mixed liquor increases, to maintain temperature of the aerated mixed liquor within predetermined limits. S P E C I F I C A T I O N -------------------------
353245
Breider Edmund J.
Drnevich Raymond F.
Hopley William G.
Union Carbide Corporation
LandOfFree
Control of sludge temperature in autothermal sludge digestion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control of sludge temperature in autothermal sludge digestion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of sludge temperature in autothermal sludge digestion will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-226129