Given the average ($Q_m$) and maximum ($Q_M$) influent flows to the UASB reactor, the sewage COD and the temperature, calculates the reactor volume and the hydraulic detention time corresponding to $Q_m$ and $Q_M$.
Usual average hydraulic detention time > 4.8 h
Usual average organic loading < 15 kg COD / m³.d
Usual average hydraulc detention time < 5 m³/m³.d
UASB reactor volume