Using Oxygen Instead of

EFFLUENT BOD CONCENTRATION 11 to 23 mg/l

RETENTION TIME 1 to 3 hr

BOD REDUCTION 88 to 92%

ORGANIC LOADING PER 10,000 GAL OF AERATOR TANK 150 to 250 lb of BOD per day

COD REDUCTION 71 to 84%

FIG. 7.35.1 Settling velocities of aerated and oxygenated activated-sludge particles.

Air Plant: BOD removal 90%: 2250 lb/day

FIG. 7.35.1 Settling velocities of aerated and oxygenated activated-sludge particles.

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