An Approach for the Flexibility Design of Activated Sludge Bioreactors Based on the Number-Theoretic Methods for Optimization

Abstract

In order to solve the problems, which appear in sewage treatment processes, caused by uncertain parameters, an approach for flexibility design of completely mixed activated sludge bioreactor was proposed based on the number-theoretic method for optimization. The flexibility of a given design can be preliminarily tested by using the number-theoretic net search. The computation points arranged by a number-theoretic net are able to provide comprehensive information for improving process flexibility. By using an operating scheme set generated with the factorial experimental design, the strategy for design improvement can be easily found. Finally, the application of the approach is illustrated with a case study which comes from a design example of a literature.