Input
0.2-0.4 conventional AS
1.0 = nominal
Results
Avg flow Q_avg (m³/day)—
Peak design flow Q_max—
BOD load (kg/day)—
TSS load (kg/day)—
Inlet BOD concentration—
Aeration tank volume V—
Hydraulic retention HRT (hr)—
Method
Q_avg = pop·wwPC. Peak Q = Q_avg · PF (rule of thumb: PF = 4 / pop^0.18 capped). BOD load = pop·BOD_pc. V = (BOD_load · 1000) / (F/M · X) [g·d /(g/g/d ·g/m³) = m³]. HRT = V·24/Q_avg.