n Rice's answer is very good, ...
Published by John Salonich, Vice President / Managing Director
n Rice's answer is very good, but add a few ratios to the mix. I would multiply the BOD rate 1.5 for DO required to offset alpha and beta values, and for Nitrification use a factor of 4.5 times the concentration of N-NH3 for maintaining alkalinity. If there is uncertainty about presence of Nitrifying bacteria, add a small incubator and feed "live" cultures into the basin to ensure sufficient CFUs of Nitrifiers are present.