Using Multiple Water Quality Models for Determining Variable Emission Levels for Wasteload Allocation

by Hal Cardwell, Johns Hopkins Univ, Baltimore, United States,
Hugh Ellis, Johns Hopkins Univ, Baltimore, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering


We present a methodology for determining the least-cost wasteload allocations from multiple point sources discharging into a single water body. The system of point sources is modeled as a dynamic programming problem; the instream water quality dynamics are addressed using three different water quality models: WASP4, QUAL2E, and our implementation of the Streeter-Phelps equations. A case study of the Schuylkill River with five point sources over six reaches illustrates the technique.

Subject Headings: Water quality | Water pollution | Water resources | Dynamic models | Hydrologic models | Water use | Emissions | Recycling

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