Kinetics of Aerobic Removal of Organic Wastes

An equation was obtained that would establish the growth kinetics under batch conditions in an aerobic system of organic wastes. The growth kinetics equation was then combined with a linear relationship between sludge growth and BOD removal in order to develop a second equation that expressed the BOD removal under batch conditions. The two equations were combined with a mass balance to determine the treatment efficiency in a completely mixed-continuous flow system. The equations thus developed for these two systems (batch and completely mixed-continuous flow) were checked against experimental results obtained with a synthetic activated sludge at 25○C.