Design a septic tank for 120 persons. Assume per capita sewage as 150 Ipcd cleaning period is 1 year L/B=4.5 percolation rate in soak well = 1300 I/m'/day DT = 24 hrs. Draw the plan and section only
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Answer:
Explanation:
Stage 1
Volume of liquid entering the tank each day
A = P × q
where
A = volume of liquid to be stored in the septic tank
P = number of people using the tank
q = sewage flow = 90% of the daily water consumption per person (Q).
q
= 0.9 × Q = 0.9 × 200
= 180 litres per person per day.
Therefore A = 8 × 180 = 1440 litres
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