(a) Design an oxidation pond for treating sewage from a hot climatic residential colony with 4000 persons, contributing sewage @ 180 lped. The 5-day BOD of sewage is 350 mg/L. Assume organic loading = 300 kg/ha/day Length to breadth ratio = 2:1 Effective depth = 1.2 m Average velocity of sewage in pipe = 1 m/s Daily flow of sewage to oxidation pond for 8 hours only Diameter of outlet pipe = 1.5 times that of the inlet pipe

Structural Analysis
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Chapter2: Loads On Structures
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(a) Design an oxidation pond for treating sewage from a hot
climatic residential colony with 4000 persons, contributing
sewage @ 180 lped. The 5-day BOD of sewage is 350 mg/L.
Assume organic loading = 300 kg/ha/day
Length to breadth ratio = 2:1
Effective depth = 1.2 m
Average velocity of sewage in pipe = 1 m/s
Daily flow of sewage to oxidation pond for 8 hours only
Diameter of outlet pipe = 1.5 times that of the inlet pipe
P
Transcribed Image Text:(a) Design an oxidation pond for treating sewage from a hot climatic residential colony with 4000 persons, contributing sewage @ 180 lped. The 5-day BOD of sewage is 350 mg/L. Assume organic loading = 300 kg/ha/day Length to breadth ratio = 2:1 Effective depth = 1.2 m Average velocity of sewage in pipe = 1 m/s Daily flow of sewage to oxidation pond for 8 hours only Diameter of outlet pipe = 1.5 times that of the inlet pipe P
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