20. A sewage treatment plant is designed to treat sewage from a population of 25,000 PE. (i) (ii) Determine the peak flow rate (in m³/d) generated by the population Determine the minimum diameter required for a primary clarifier considering the minimum surface overflow rate of 45 m²/m²/d at peak flow Based on your answer in (ii), calculate the surface overflow rate (m³/m²/d) during average flow (iii) (iv) If the BOD influent rate is 60 g/cap/d, and the primary clarifier efficiency is 65%, determine the BOD effluent from the clarifier in mg/L

The term dimensional homogeneity means that in an equation, the dimensions of each term on both sides are equal, which means the dimensions of the left-hand side (LHS) of an equation are similar to the dimensions of the right-hand side (RHS). For a dimen…