This example in connection with our previous post,
How to calculate Aeration Tank Volume?
Total BOD to be removed (Influent) = 250 mg/l (assume) x 1400 = 350 kg/Day (we consider 1400 M3/Day Effluent Plant)
Hence O2 to be transferred =350 kg/Day
Method of Aeration = Fine Bubble Diffuser
[....]SOTE (Standard O2 Transfer Efficiency For 300
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Organic Matter in Water, Nonspecific Tests |
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Test |
Description |
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BOD |
Biochemical oxygen demand. Measures the ability of common bacteria to digest organic matter, usually in a 5-day incubation at 2O |
For a completely biodegradable wastewater such as glucose, approximately ten percent of the original organics remain as non-biodegradable cellular residues after biological oxidation. Hence, the cellular residues are not measured by the BOD test. Therefore:
BODu = 0.9ThOD —1
where BODu = ultimate BOD
ThOD = theoretical oxygen demand For domestic sewage and some biodegradable industrial wastes, the relationship [....]