OPTIMAL OPERATION OF REGIONAL SYSTEM WITH DIVERSE WATER-QUALITY SOURCES

A management model for optimal operation and control of a regional wat er system is developed and evaluated. The system consists of numerous water sources with various qualities and consumers with differing flow rates and quality requirements. Flow at the nodes, supplies and deman ds, and solute mass balance are defined as mass balance constraints. B inary on/off controls for the hydraulic components are defined by cont inuous nonlinear functions. A two-time step formulation representing o n-peak and off-peak power cost periods is solved on a personal compute r using GAMS/MINOS. The method is readily extensible to cover more tim e periods and larger networks.