DYNAMIC-PROGRAMMING OPTIMIZATION OF WATER-TREATMENT-PLANT DESIGN

A mathematical model incorporating the performance relationships and c ost functions for the component units of a conventional water-treatmen t system (viz rapid mix, clariflocculator, and rapid sand filters) was developed. An algorithm using dynamic programming is described for fu nctional and minimal-cost design of the system. An analysis of the sta bility of optimal design and its sensitivity with respect to some syst em parameters (viz input characteristics, interest rate and constructi on and power costs) is also incorporated specifically with respect to a case study.