ABSTRACT
This chapter describes the use of kinetic models and parameters computed from the biokinetic constants included in them to predict performance of activated sludge processes treating either noninhibitory or toxic organic substrates. It also suggests that the biokinetic parameters play a role in industrial waste pretreatment programs, since relative numerical values of certain biokinetic parameters might be employed as one of the criteria for grading industrial wastes and establishing sewer charges. The major impediment to more general use of kinetic models in plant operations has been the need for periodic evaluation of the biokinetic constants and the realization that the procedures for obtaining numerical values of these constants is somewhat laborious. Analyses employed during the study included chemical oxygen demand (COD) as soluble and total COD. The chapter shows that the oxygen (O2 ) surrogate technique adequately measures the course of biomass growth by measuring respiration.
