Flow non-uniformity and design flows

Calculates average daily flow and design peak / minimum flows from population, specific wastewater production and non-uniformity coefficients.

Flow non-uniformity and design flows

This calculator estimates the average daily flow and design peak / minimum flows based on population, specific wastewater production and daily/hourly non-uniformity factors. Results are indicative and intended for preliminary design and mass-balance checks.

The calculation uses average values and simple non-uniformity factors. For detailed design and assessment of extreme events, use time series and a more detailed hydraulic model.

Average daily flow

Q24 average [m³/day]:

Q24 average [L/s]:

Maximum daily flow

Qd,max [m³/day]:

Maximum and minimum hourly flow

Qh,max [m³/h]:

Qh,max [L/s]:

Qh,min [m³/h]:

Qh,min [L/s]:

Found an error? Let us know. Thank you.