Water Supply
Detention Time
Hydraulic detention (retention) time in a tank or basin. Used to size sedimentation tanks, contact tanks, and balancing reservoirs.
Formula
t = V / Q
Resultlive
- Volume, V
- 100m³
- Flow, Q
- 10L/s
- Flow, Q
- 36m³/hr
- Detention time
- 2.7778hours
- Detention time
- 166.67minutes
Reference: Plug-flow hydraulic retention time. Real tanks show short-circuiting; actual mean residence time can be 50–80% of theoretical.