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Determinethe power requirements of the mechanical aerators (kg O2/kWh) and the total number of aerators needed under the field conditions (15 C, 760 mm Hg).
Determinethe power requirements of the mechanical aerators (kg O2/kWh) and the total number of aerators needed under the field conditions (15 C, 760 mm Hg). Each aeratorhas a capacity of 15 kWh and daily oxygen requirement is 260 kg O2.
Standard oxygen transfer rate (at 20 C and zero dissolved oxygen) : 2 kg O2/kWh
= 0.95 (salinity-surface tension correction factor),
= 0.9(oxygen transfer correction factor)
CL=2.5 mg/l
F = 1
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