System Optimization of Waste Treatment Plant Process Designby Chia Shun Shih, Res. Supervisor; Roy F. Weston, Inc., West Chester, PA,
John A. DeFilippi, (A.M.ASCE), Manager; Roy F. Weston, Inc., Roslyn, NY,
Serial Information: Journal of the Sanitary Engineering Division, 1970, Vol. 96, Issue 2, Pg. 409-421
Document Type: Journal Paper
An optimization model which integrates dynamic programming techniques into existing process design principles is presented. Process design of waste treatment facilities should consider all unit processes at the same time for overall system optimization. Designing and optimizing single processes individually has been the usual approach for many years. This method may yield the best design for a certain unit process but not necessarily the least-cost design in a multistage system. The optimization procedure for a serial, multistage system with two point boundary values is utilized. Following the mathematical development of the optimization model, an illustrative example is presented to demonstrate its application. For secondary treatment processes, two alternative subprocesses are considered simultaneously. A unique decision variable and typical state variables are used for each process. Representative unit process cost functions are also presented in the application.
Subject Headings: Waste treatment plants | Industrial wastes | Optimization models | Dynamic models | Building design | Professional societies | Financial management | Computer programming
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